---
_id: '8931'
abstract:
- lang: eng
text: "Auxin is a major plant growth regulator, but current models on auxin perception
and signaling cannot explain the whole plethora of auxin effects, in particular
those associated with rapid responses. A possible candidate for a component of
additional auxin perception mechanisms is the AUXIN BINDING PROTEIN 1 (ABP1),
whose function in planta remains unclear.\r\nHere we combined expression analysis
with gain- and loss-of-function approaches to analyze the role of ABP1 in plant
development. ABP1 shows a broad expression largely overlapping with, but not regulated
by, transcriptional auxin response activity. Furthermore, ABP1 activity is not
essential for the transcriptional auxin signaling. Genetic in planta analysis
revealed that abp1 loss-of-function mutants show largely normal development with
minor defects in bolting. On the other hand, ABP1 gain-of-function alleles show
a broad range of growth and developmental defects, including root and hypocotyl
growth and bending, lateral root and leaf development, bolting, as well as response
to heat stress. At the cellular level, ABP1 gain-of-function leads to impaired
auxin effect on PIN polar distribution and affects BFA-sensitive PIN intracellular
aggregation.\r\nThe gain-of-function analysis suggests a broad, but still mechanistically
unclear involvement of ABP1 in plant development, possibly masked in abp1 loss-of-function
mutants by a functional redundancy."
acknowledged_ssus:
- _id: Bio
- _id: LifeSc
acknowledgement: We would like to acknowledge Bioimaging and Life Science Facilities
at IST Austria for continuous support and also the Plant Sciences Core Facility
of CEITEC Masaryk University for their support with obtaining a part of the scientific
data. We gratefully acknowledge Lindy Abas for help with ABP1::GFP-ABP1 construct
design. This project has received funding from the European Research Council (ERC)
under the European Union’s Horizon 2020 research and innovation program [grant agreement
no. 742985] and Austrian Science Fund (FWF) [I 3630-B25] to J.F.; DOC Fellowship
of the Austrian Academy of Sciences to L.L.; the European Structural and Investment
Funds, Operational Programme Research, Development and Education - Project „MSCAfellow@MUNI“
[CZ.02.2.69/0.0/0.0/17_050/0008496] to M.P.. This project was also supported by
the Czech Science Foundation [GA 20-20860Y] to M.Z and MEYS CR [project no.CZ.02.1.01/0.0/0.0/16_019/0000738]
to M. Č.
article_number: '110750'
article_processing_charge: Yes (via OA deal)
article_type: original
author:
- first_name: Zuzana
full_name: Gelová, Zuzana
id: 0AE74790-0E0B-11E9-ABC7-1ACFE5697425
last_name: Gelová
orcid: 0000-0003-4783-1752
- first_name: Michelle C
full_name: Gallei, Michelle C
id: 35A03822-F248-11E8-B48F-1D18A9856A87
last_name: Gallei
orcid: 0000-0003-1286-7368
- first_name: Markéta
full_name: Pernisová, Markéta
last_name: Pernisová
- first_name: Géraldine
full_name: Brunoud, Géraldine
last_name: Brunoud
- first_name: Xixi
full_name: Zhang, Xixi
id: 61A66458-47E9-11EA-85BA-8AEAAF14E49A
last_name: Zhang
orcid: 0000-0001-7048-4627
- first_name: Matous
full_name: Glanc, Matous
id: 1AE1EA24-02D0-11E9-9BAA-DAF4881429F2
last_name: Glanc
orcid: 0000-0003-0619-7783
- first_name: Lanxin
full_name: Li, Lanxin
id: 367EF8FA-F248-11E8-B48F-1D18A9856A87
last_name: Li
orcid: 0000-0002-5607-272X
- first_name: Jaroslav
full_name: Michalko, Jaroslav
id: 483727CA-F248-11E8-B48F-1D18A9856A87
last_name: Michalko
- first_name: Zlata
full_name: Pavlovicova, Zlata
last_name: Pavlovicova
- first_name: Inge
full_name: Verstraeten, Inge
id: 362BF7FE-F248-11E8-B48F-1D18A9856A87
last_name: Verstraeten
orcid: 0000-0001-7241-2328
- first_name: Huibin
full_name: Han, Huibin
id: 31435098-F248-11E8-B48F-1D18A9856A87
last_name: Han
- first_name: Jakub
full_name: Hajny, Jakub
id: 4800CC20-F248-11E8-B48F-1D18A9856A87
last_name: Hajny
orcid: 0000-0003-2140-7195
- first_name: Robert
full_name: Hauschild, Robert
id: 4E01D6B4-F248-11E8-B48F-1D18A9856A87
last_name: Hauschild
orcid: 0000-0001-9843-3522
- first_name: Milada
full_name: Čovanová, Milada
last_name: Čovanová
- first_name: Marta
full_name: Zwiewka, Marta
last_name: Zwiewka
- first_name: Lukas
full_name: Hörmayer, Lukas
id: 2EEE7A2A-F248-11E8-B48F-1D18A9856A87
last_name: Hörmayer
orcid: 0000-0001-8295-2926
- first_name: Matyas
full_name: Fendrych, Matyas
id: 43905548-F248-11E8-B48F-1D18A9856A87
last_name: Fendrych
orcid: 0000-0002-9767-8699
- first_name: Tongda
full_name: Xu, Tongda
last_name: Xu
- first_name: Teva
full_name: Vernoux, Teva
last_name: Vernoux
- first_name: Jiří
full_name: Friml, Jiří
id: 4159519E-F248-11E8-B48F-1D18A9856A87
last_name: Friml
orcid: 0000-0002-8302-7596
citation:
ama: Gelová Z, Gallei MC, Pernisová M, et al. Developmental roles of auxin binding
protein 1 in Arabidopsis thaliana. Plant Science. 2021;303. doi:10.1016/j.plantsci.2020.110750
apa: Gelová, Z., Gallei, M. C., Pernisová, M., Brunoud, G., Zhang, X., Glanc, M.,
… Friml, J. (2021). Developmental roles of auxin binding protein 1 in Arabidopsis
thaliana. Plant Science. Elsevier. https://doi.org/10.1016/j.plantsci.2020.110750
chicago: Gelová, Zuzana, Michelle C Gallei, Markéta Pernisová, Géraldine Brunoud,
Xixi Zhang, Matous Glanc, Lanxin Li, et al. “Developmental Roles of Auxin Binding
Protein 1 in Arabidopsis Thaliana.” Plant Science. Elsevier, 2021. https://doi.org/10.1016/j.plantsci.2020.110750.
ieee: Z. Gelová et al., “Developmental roles of auxin binding protein 1 in
Arabidopsis thaliana,” Plant Science, vol. 303. Elsevier, 2021.
ista: Gelová Z, Gallei MC, Pernisová M, Brunoud G, Zhang X, Glanc M, Li L, Michalko
J, Pavlovicova Z, Verstraeten I, Han H, Hajny J, Hauschild R, Čovanová M, Zwiewka
M, Hörmayer L, Fendrych M, Xu T, Vernoux T, Friml J. 2021. Developmental roles
of auxin binding protein 1 in Arabidopsis thaliana. Plant Science. 303, 110750.
mla: Gelová, Zuzana, et al. “Developmental Roles of Auxin Binding Protein 1 in Arabidopsis
Thaliana.” Plant Science, vol. 303, 110750, Elsevier, 2021, doi:10.1016/j.plantsci.2020.110750.
short: Z. Gelová, M.C. Gallei, M. Pernisová, G. Brunoud, X. Zhang, M. Glanc, L.
Li, J. Michalko, Z. Pavlovicova, I. Verstraeten, H. Han, J. Hajny, R. Hauschild,
M. Čovanová, M. Zwiewka, L. Hörmayer, M. Fendrych, T. Xu, T. Vernoux, J. Friml,
Plant Science 303 (2021).
corr_author: '1'
date_created: 2020-12-09T14:48:28Z
date_published: 2021-02-01T00:00:00Z
date_updated: 2026-05-12T22:31:20Z
day: '01'
ddc:
- '580'
department:
- _id: JiFr
- _id: Bio
doi: 10.1016/j.plantsci.2020.110750
ec_funded: 1
external_id:
isi:
- '000614154500001'
pmid:
- '33487339'
file:
- access_level: open_access
checksum: a7f2562bdca62d67dfa88e271b62a629
content_type: application/pdf
creator: dernst
date_created: 2021-02-04T07:49:25Z
date_updated: 2021-02-04T07:49:25Z
file_id: '9083'
file_name: 2021_PlantScience_Gelova.pdf
file_size: 12563728
relation: main_file
success: 1
file_date_updated: 2021-02-04T07:49:25Z
has_accepted_license: '1'
intvolume: ' 303'
isi: 1
keyword:
- Agronomy and Crop Science
- Plant Science
- Genetics
- General Medicine
language:
- iso: eng
month: '02'
oa: 1
oa_version: Published Version
pmid: 1
project:
- _id: 261099A6-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '742985'
name: Tracing Evolution of Auxin Transport and Polarity in Plants
- _id: 26538374-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: I03630
name: Molecular mechanisms of endocytic cargo recognition in plants
- _id: 26B4D67E-B435-11E9-9278-68D0E5697425
grant_number: '25351'
name: 'A Case Study of Plant Growth Regulation: Molecular Mechanism of Auxin-mediated
Rapid Growth Inhibition in Arabidopsis Root'
publication: Plant Science
publication_identifier:
issn:
- 0168-9452
publication_status: published
publisher: Elsevier
quality_controlled: '1'
related_material:
record:
- id: '11626'
relation: dissertation_contains
status: public
- id: '10083'
relation: dissertation_contains
status: public
scopus_import: '1'
status: public
title: Developmental roles of auxin binding protein 1 in Arabidopsis thaliana
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 303
year: '2021'
...
---
_id: '9287'
abstract:
- lang: eng
text: "The phytohormone auxin and its directional transport through tissues are
intensively studied. However, a mechanistic understanding of auxin-mediated feedback
on endocytosis and polar distribution of PIN auxin transporters remains limited
due to contradictory observations and interpretations. Here, we used state-of-the-art
methods to reexamine the\r\nauxin effects on PIN endocytic trafficking. We used
high auxin concentrations or longer treatments versus lower concentrations and
shorter treatments of natural (IAA) and synthetic (NAA) auxins to distinguish
between specific and nonspecific effects. Longer treatments of both auxins interfere
with Brefeldin A-mediated intracellular PIN2 accumulation and also with general
aggregation of endomembrane compartments. NAA treatment decreased the internalization
of the endocytic tracer dye, FM4-64; however, NAA treatment also affected the
number, distribution, and compartment identity of the early endosome/trans-Golgi
network (EE/TGN), rendering the FM4-64 endocytic assays at high NAA concentrations
unreliable. To circumvent these nonspecific effects of NAA and IAA affecting the
endomembrane system, we opted for alternative approaches visualizing the endocytic
events directly at the plasma membrane (PM). Using Total Internal Reflection Fluorescence
(TIRF) microscopy, we saw no significant effects of IAA or NAA treatments on the
incidence and dynamics of clathrin foci, implying that these treatments do not
affect the overall endocytosis rate. However, both NAA and IAA at low concentrations
rapidly and specifically promoted endocytosis of photo-converted PIN2 from the
PM. These analyses identify a specific effect of NAA and IAA on PIN2 endocytosis,
thus contributing to its\r\npolarity maintenance and furthermore illustrate that
high auxin levels have nonspecific effects on trafficking and endomembrane compartments. "
acknowledged_ssus:
- _id: M-Shop
- _id: Bio
acknowledgement: 'We thank Ivan Kulik for developing the Chip’n’Dale apparatus with
Lanxin Li; the IST machine shop and the Bioimaging facility for their excellent
support; Matouš Glanc and Matyáš Fendrych for their valuable discussions and help;
Barbara Casillas-Perez for her help with statistics. This project has received funding
from the European Research Council (ERC) under the European Union''s Horizon 2020
research and innovation program (grant agreement No 742985). A.J. is supported by
funding from the Austrian Science Fund (FWF): I3630B25 to J.F. '
article_processing_charge: Yes (in subscription journal)
article_type: original
author:
- first_name: Madhumitha
full_name: Narasimhan, Madhumitha
id: 44BF24D0-F248-11E8-B48F-1D18A9856A87
last_name: Narasimhan
orcid: 0000-0002-8600-0671
- first_name: Michelle C
full_name: Gallei, Michelle C
id: 35A03822-F248-11E8-B48F-1D18A9856A87
last_name: Gallei
orcid: 0000-0003-1286-7368
- first_name: Shutang
full_name: Tan, Shutang
id: 2DE75584-F248-11E8-B48F-1D18A9856A87
last_name: Tan
orcid: 0000-0002-0471-8285
- first_name: Alexander J
full_name: Johnson, Alexander J
id: 46A62C3A-F248-11E8-B48F-1D18A9856A87
last_name: Johnson
orcid: 0000-0002-2739-8843
- first_name: Inge
full_name: Verstraeten, Inge
id: 362BF7FE-F248-11E8-B48F-1D18A9856A87
last_name: Verstraeten
orcid: 0000-0001-7241-2328
- first_name: Lanxin
full_name: Li, Lanxin
id: 367EF8FA-F248-11E8-B48F-1D18A9856A87
last_name: Li
orcid: 0000-0002-5607-272X
- first_name: Lesia
full_name: Rodriguez Solovey, Lesia
id: 3922B506-F248-11E8-B48F-1D18A9856A87
last_name: Rodriguez Solovey
orcid: 0000-0002-7244-7237
- first_name: Huibin
full_name: Han, Huibin
id: 31435098-F248-11E8-B48F-1D18A9856A87
last_name: Han
- first_name: E
full_name: Himschoot, E
last_name: Himschoot
- first_name: R
full_name: Wang, R
last_name: Wang
- first_name: S
full_name: Vanneste, S
last_name: Vanneste
- first_name: J
full_name: Sánchez-Simarro, J
last_name: Sánchez-Simarro
- first_name: F
full_name: Aniento, F
last_name: Aniento
- first_name: Maciek
full_name: Adamowski, Maciek
id: 45F536D2-F248-11E8-B48F-1D18A9856A87
last_name: Adamowski
orcid: 0000-0001-6463-5257
- first_name: Jiří
full_name: Friml, Jiří
id: 4159519E-F248-11E8-B48F-1D18A9856A87
last_name: Friml
orcid: 0000-0002-8302-7596
citation:
ama: Narasimhan M, Gallei MC, Tan S, et al. Systematic analysis of specific and
nonspecific auxin effects on endocytosis and trafficking. Plant Physiology.
2021;186(2):1122–1142. doi:10.1093/plphys/kiab134
apa: Narasimhan, M., Gallei, M. C., Tan, S., Johnson, A. J., Verstraeten, I., Li,
L., … Friml, J. (2021). Systematic analysis of specific and nonspecific auxin
effects on endocytosis and trafficking. Plant Physiology. Oxford University
Press. https://doi.org/10.1093/plphys/kiab134
chicago: Narasimhan, Madhumitha, Michelle C Gallei, Shutang Tan, Alexander J Johnson,
Inge Verstraeten, Lanxin Li, Lesia Rodriguez Solovey, et al. “Systematic Analysis
of Specific and Nonspecific Auxin Effects on Endocytosis and Trafficking.” Plant
Physiology. Oxford University Press, 2021. https://doi.org/10.1093/plphys/kiab134.
ieee: M. Narasimhan et al., “Systematic analysis of specific and nonspecific
auxin effects on endocytosis and trafficking,” Plant Physiology, vol. 186,
no. 2. Oxford University Press, pp. 1122–1142, 2021.
ista: Narasimhan M, Gallei MC, Tan S, Johnson AJ, Verstraeten I, Li L, Rodriguez
Solovey L, Han H, Himschoot E, Wang R, Vanneste S, Sánchez-Simarro J, Aniento
F, Adamowski M, Friml J. 2021. Systematic analysis of specific and nonspecific
auxin effects on endocytosis and trafficking. Plant Physiology. 186(2), 1122–1142.
mla: Narasimhan, Madhumitha, et al. “Systematic Analysis of Specific and Nonspecific
Auxin Effects on Endocytosis and Trafficking.” Plant Physiology, vol. 186,
no. 2, Oxford University Press, 2021, pp. 1122–1142, doi:10.1093/plphys/kiab134.
short: M. Narasimhan, M.C. Gallei, S. Tan, A.J. Johnson, I. Verstraeten, L. Li,
L. Rodriguez Solovey, H. Han, E. Himschoot, R. Wang, S. Vanneste, J. Sánchez-Simarro,
F. Aniento, M. Adamowski, J. Friml, Plant Physiology 186 (2021) 1122–1142.
corr_author: '1'
date_created: 2021-03-26T12:08:38Z
date_published: 2021-06-01T00:00:00Z
date_updated: 2026-05-12T22:31:21Z
day: '01'
ddc:
- '580'
department:
- _id: JiFr
doi: 10.1093/plphys/kiab134
ec_funded: 1
external_id:
isi:
- '000671555900031'
pmid:
- '33734402'
file:
- access_level: open_access
checksum: 532bb9469d3b665907f06df8c383eade
content_type: application/pdf
creator: cziletti
date_created: 2021-11-11T15:07:51Z
date_updated: 2021-11-11T15:07:51Z
file_id: '10273'
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file_date_updated: 2021-11-11T15:07:51Z
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intvolume: ' 186'
isi: 1
issue: '2'
language:
- iso: eng
month: '06'
oa: 1
oa_version: Published Version
page: 1122–1142
pmid: 1
project:
- _id: 261099A6-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '742985'
name: Tracing Evolution of Auxin Transport and Polarity in Plants
- _id: 26538374-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: I03630
name: Molecular mechanisms of endocytic cargo recognition in plants
publication: Plant Physiology
publication_identifier:
eissn:
- 1532-2548
issn:
- 0032-0889
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
related_material:
link:
- relation: erratum
url: https://doi.org/10.1093/plphys/kiab380
record:
- id: '11626'
relation: dissertation_contains
status: public
- id: '10083'
relation: dissertation_contains
status: public
scopus_import: '1'
status: public
title: Systematic analysis of specific and nonspecific auxin effects on endocytosis
and trafficking
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: ba8df636-2132-11f1-aed0-ed93e2281fdd
volume: 186
year: '2021'
...
---
OA_place: publisher
_id: '10083'
abstract:
- lang: eng
text: "Plant motions occur across a wide spectrum of timescales, ranging from seed
dispersal through bursting (milliseconds) and stomatal opening (minutes) to long-term
adaptation of gross architecture. Relatively fast motions include water-driven
growth as exemplified by root cell expansion under abiotic/biotic stresses or
during gravitropism. A showcase is a root growth inhibition in 30 seconds triggered
by the phytohormone auxin. However, the cellular and molecular mechanisms are
still largely unknown. This thesis covers the studies about this topic as follows.
By taking advantage of microfluidics combined with live imaging, pharmaceutical
tools, and transgenic lines, we examined the kinetics of and causal relationship
among various auxininduced rapid cellular changes in root growth, apoplastic pH,
cytosolic Ca2+, cortical microtubule (CMT) orientation, and vacuolar morphology.
We revealed that CMT reorientation and vacuolar constriction are the consequence
of growth itself instead of responding directly to auxin. In contrast, auxin induces
apoplast alkalinization to rapidly inhibit root growth in 30 seconds. This auxin-triggered
apoplast alkalinization results from rapid H+- influx that is contributed by Ca2+
inward channel CYCLIC NUCLEOTIDE-GATED CHANNEL 14 (CNGC14)-dependent Ca2+ signaling.
To dissect which auxin signaling mediates the rapid apoplast alkalinization, we\r\ncombined
microfluidics and genetic engineering to verify that TIR1/AFB receptors conduct
a non-transcriptional regulation on Ca2+ and H+ -influx. This non-canonical pathway
is mostly mediated by the cytosolic portion of TIR1/AFB. On the other hand, we
uncovered, using biochemical and phospho-proteomic analysis, that auxin cell surface
signaling component TRANSMEMBRANE KINASE 1 (TMK1) plays a negative role during
auxin-trigger apoplast\r\nalkalinization and root growth inhibition through directly
activating PM H+ -ATPases. Therefore, we discovered that PM H+ -ATPases counteract
instead of mediate the auxintriggered rapid H+ -influx, and that TIR1/AFB and
TMK1 regulate root growth antagonistically. This opposite effect of TIR1/AFB and
TMK1 is consistent during auxin-induced hypocotyl elongation, leading us to explore
the relation of two signaling pathways. Assisted with biochemistry and fluorescent
imaging, we verified for the first time that TIR1/AFB and TMK1 can interact with
each other. The ability of TIR1/AFB binding to membrane lipid provides a basis
for the interaction of plasma membrane- and cytosol-localized proteins.\r\nBesides,
transgenic analysis combined with genetic engineering and biochemistry showed
that vi\r\nthey do function in the same pathway. Particularly, auxin-induced
TMK1 increase is TIR1/AFB dependent, suggesting TIR1/AFB regulation on TMK1. Conversely,
TMK1 also regulates TIR1/AFB protein levels and thus auxin canonical signaling.
To follow the study of rapid growth regulation, we analyzed another rapid growth
regulator, signaling peptide RALF1. We showed that RALF1 also triggers a rapid
and reversible growth inhibition caused by H + influx, highly resembling but not
dependent on auxin. Besides, RALF1 promotes auxin biosynthesis by increasing expression
of auxin biosynthesis enzyme YUCCAs and thus induces auxin signaling in ca. 1
hour, contributing to the sustained RALF1-triggered growth inhibition. These studies
collectively contribute to understanding rapid regulation on plant cell\r\ngrowth,
novel auxin signaling pathway as well as auxin-peptide crosstalk. "
alternative_title:
- ISTA Thesis
article_processing_charge: No
author:
- first_name: Lanxin
full_name: Li, Lanxin
id: 367EF8FA-F248-11E8-B48F-1D18A9856A87
last_name: Li
orcid: 0000-0002-5607-272X
citation:
ama: Li L. Rapid cell growth regulation in Arabidopsis. 2021. doi:10.15479/at:ista:10083
apa: Li, L. (2021). Rapid cell growth regulation in Arabidopsis. Institute
of Science and Technology Austria. https://doi.org/10.15479/at:ista:10083
chicago: Li, Lanxin. “Rapid Cell Growth Regulation in Arabidopsis.” Institute of
Science and Technology Austria, 2021. https://doi.org/10.15479/at:ista:10083.
ieee: L. Li, “Rapid cell growth regulation in Arabidopsis,” Institute of Science
and Technology Austria, 2021.
ista: Li L. 2021. Rapid cell growth regulation in Arabidopsis. Institute of Science
and Technology Austria.
mla: Li, Lanxin. Rapid Cell Growth Regulation in Arabidopsis. Institute of
Science and Technology Austria, 2021, doi:10.15479/at:ista:10083.
short: L. Li, Rapid Cell Growth Regulation in Arabidopsis, Institute of Science
and Technology Austria, 2021.
corr_author: '1'
date_created: 2021-10-04T13:33:10Z
date_published: 2021-10-06T00:00:00Z
date_updated: 2026-04-16T12:20:41Z
day: '06'
ddc:
- '575'
degree_awarded: PhD
department:
- _id: GradSch
- _id: JiFr
doi: 10.15479/at:ista:10083
ec_funded: 1
file:
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creator: cchlebak
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date_updated: 2022-12-20T23:30:03Z
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file_date_updated: 2022-12-20T23:30:03Z
has_accepted_license: '1'
language:
- iso: eng
month: '10'
oa: 1
oa_version: Published Version
project:
- _id: 2564DBCA-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '665385'
name: International IST Doctoral Program
- _id: 26B4D67E-B435-11E9-9278-68D0E5697425
grant_number: '25351'
name: 'A Case Study of Plant Growth Regulation: Molecular Mechanism of Auxin-mediated
Rapid Growth Inhibition in Arabidopsis Root'
publication_identifier:
issn:
- 2663-337X
publication_status: published
publisher: Institute of Science and Technology Austria
related_material:
record:
- id: '442'
relation: part_of_dissertation
status: public
- id: '6627'
relation: part_of_dissertation
status: public
- id: '8931'
relation: part_of_dissertation
status: public
- id: '8986'
relation: part_of_dissertation
status: public
- id: '10095'
relation: part_of_dissertation
status: public
- id: '8283'
relation: part_of_dissertation
status: public
- id: '9287'
relation: part_of_dissertation
status: public
- id: '10015'
relation: part_of_dissertation
status: public
status: public
supervisor:
- first_name: Jiří
full_name: Friml, Jiří
id: 4159519E-F248-11E8-B48F-1D18A9856A87
last_name: Friml
orcid: 0000-0002-8302-7596
title: Rapid cell growth regulation in Arabidopsis
tmp:
image: /images/cc_by_nc_nd.png
legal_code_url: https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode
name: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
(CC BY-NC-ND 4.0)
short: CC BY-NC-ND (4.0)
type: dissertation
user_id: ba8df636-2132-11f1-aed0-ed93e2281fdd
year: '2021'
...
---
_id: '10015'
abstract:
- lang: eng
text: "Auxin plays a dual role in growth regulation and, depending on the tissue
and concentration of the hormone, it can either promote or inhibit division and
expansion processes in plants. Recent studies have revealed that, beyond transcriptional
reprogramming, alternative auxincontrolled mechanisms regulate root growth. Here,
we explored the impact of different concentrations of the synthetic auxin NAA
that establish growth-promoting and -repressing conditions on the root tip proteome
and phosphoproteome, generating a unique resource. From the phosphoproteome data,
we pinpointed (novel) growth regulators, such as the RALF34-THE1 module. Our results,
together with previously published studies, suggest that auxin, H+-ATPases, cell
wall modifications and cell wall sensing receptor-like kinases are tightly embedded
in a pathway regulating cell elongation. Furthermore, our study assigned a novel
role to MKK2 as a regulator of primary root growth and a (potential) regulator
of auxin biosynthesis and signalling, and suggests the importance of the MKK2\r\nThr31
phosphorylation site for growth regulation in the Arabidopsis root tip."
acknowledgement: We thank the Nottingham Stock Centre for seeds, Frank Van Breusegem
for the phb3 mutant, and Herman Höfte for the the1 mutant. Open Access Funding by
the Austrian Science Fund (FWF).
alternative_title:
- Protein Phosphorylation and Cell Signaling in Plants
article_number: '1665 '
article_processing_charge: Yes
article_type: original
author:
- first_name: N
full_name: Nikonorova, N
last_name: Nikonorova
- first_name: E
full_name: Murphy, E
last_name: Murphy
- first_name: CF
full_name: Fonseca de Lima, CF
last_name: Fonseca de Lima
- first_name: S
full_name: Zhu, S
last_name: Zhu
- first_name: B
full_name: van de Cotte, B
last_name: van de Cotte
- first_name: LD
full_name: Vu, LD
last_name: Vu
- first_name: D
full_name: Balcerowicz, D
last_name: Balcerowicz
- first_name: Lanxin
full_name: Li, Lanxin
id: 367EF8FA-F248-11E8-B48F-1D18A9856A87
last_name: Li
orcid: 0000-0002-5607-272X
- first_name: X
full_name: Kong, X
last_name: Kong
- first_name: G
full_name: De Rop, G
last_name: De Rop
- first_name: T
full_name: Beeckman, T
last_name: Beeckman
- first_name: Jiří
full_name: Friml, Jiří
id: 4159519E-F248-11E8-B48F-1D18A9856A87
last_name: Friml
orcid: 0000-0002-8302-7596
- first_name: K
full_name: Vissenberg, K
last_name: Vissenberg
- first_name: PC
full_name: Morris, PC
last_name: Morris
- first_name: Z
full_name: Ding, Z
last_name: Ding
- first_name: I
full_name: De Smet, I
last_name: De Smet
citation:
ama: Nikonorova N, Murphy E, Fonseca de Lima C, et al. The Arabidopsis root tip
(phospho)proteomes at growth-promoting versus growth-repressing conditions reveal
novel root growth regulators. Cells. 2021;10. doi:10.3390/cells10071665
apa: Nikonorova, N., Murphy, E., Fonseca de Lima, C., Zhu, S., van de Cotte, B.,
Vu, L., … De Smet, I. (2021). The Arabidopsis root tip (phospho)proteomes at growth-promoting
versus growth-repressing conditions reveal novel root growth regulators. Cells.
MDPI. https://doi.org/10.3390/cells10071665
chicago: Nikonorova, N, E Murphy, CF Fonseca de Lima, S Zhu, B van de Cotte, LD
Vu, D Balcerowicz, et al. “The Arabidopsis Root Tip (Phospho)Proteomes at Growth-Promoting
versus Growth-Repressing Conditions Reveal Novel Root Growth Regulators.” Cells.
MDPI, 2021. https://doi.org/10.3390/cells10071665.
ieee: N. Nikonorova et al., “The Arabidopsis root tip (phospho)proteomes
at growth-promoting versus growth-repressing conditions reveal novel root growth
regulators,” Cells, vol. 10. MDPI, 2021.
ista: Nikonorova N, Murphy E, Fonseca de Lima C, Zhu S, van de Cotte B, Vu L, Balcerowicz
D, Li L, Kong X, De Rop G, Beeckman T, Friml J, Vissenberg K, Morris P, Ding Z,
De Smet I. 2021. The Arabidopsis root tip (phospho)proteomes at growth-promoting
versus growth-repressing conditions reveal novel root growth regulators. Cells.
10, 1665.
mla: Nikonorova, N., et al. “The Arabidopsis Root Tip (Phospho)Proteomes at Growth-Promoting
versus Growth-Repressing Conditions Reveal Novel Root Growth Regulators.” Cells,
vol. 10, 1665, MDPI, 2021, doi:10.3390/cells10071665.
short: N. Nikonorova, E. Murphy, C. Fonseca de Lima, S. Zhu, B. van de Cotte, L.
Vu, D. Balcerowicz, L. Li, X. Kong, G. De Rop, T. Beeckman, J. Friml, K. Vissenberg,
P. Morris, Z. Ding, I. De Smet, Cells 10 (2021).
date_created: 2021-09-14T11:36:20Z
date_published: 2021-07-02T00:00:00Z
date_updated: 2026-05-12T22:31:21Z
day: '02'
ddc:
- '575'
department:
- _id: JiFr
doi: 10.3390/cells10071665
ec_funded: 1
external_id:
isi:
- '000676604700001'
pmid:
- '34359847'
file:
- access_level: open_access
checksum: 2a9f534b9c2200e72e2cde95afaf4eed
content_type: application/pdf
creator: cchlebak
date_created: 2021-09-16T09:07:06Z
date_updated: 2021-09-16T09:07:06Z
file_id: '10021'
file_name: 2021_Cells_Nikonorova.pdf
file_size: 2667848
relation: main_file
success: 1
file_date_updated: 2021-09-16T09:07:06Z
has_accepted_license: '1'
intvolume: ' 10'
isi: 1
keyword:
- primary root
- (phospho)proteomics
- auxin
- (receptor) kinase
language:
- iso: eng
month: '07'
oa: 1
oa_version: Published Version
pmid: 1
project:
- _id: 2564DBCA-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '665385'
name: International IST Doctoral Program
- _id: 3AC91DDA-15DF-11EA-824D-93A3E7B544D1
call_identifier: FWF
name: FWF Open Access Fund
publication: Cells
publication_identifier:
issn:
- 2073-4409
publication_status: published
publisher: MDPI
quality_controlled: '1'
related_material:
record:
- id: '10083'
relation: dissertation_contains
status: public
scopus_import: '1'
status: public
title: The Arabidopsis root tip (phospho)proteomes at growth-promoting versus growth-repressing
conditions reveal novel root growth regulators
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 10
year: '2021'
...
---
_id: '10095'
abstract:
- lang: eng
text: Growth regulation tailors plant development to its environment. A showcase
is response to gravity, where shoots bend up and roots down1. This paradox is
based on opposite effects of the phytohormone auxin, which promotes cell expansion
in shoots, while inhibiting it in roots via a yet unknown cellular mechanism2.
Here, by combining microfluidics, live imaging, genetic engineering and phospho-proteomics
in Arabidopsis thaliana, we advance our understanding how auxin inhibits root
growth. We show that auxin activates two distinct, antagonistically acting signalling
pathways that converge on the rapid regulation of the apoplastic pH, a causative
growth determinant. Cell surface-based TRANSMEMBRANE KINASE1 (TMK1) interacts
with and mediates phosphorylation and activation of plasma membrane H+-ATPases
for apoplast acidification, while intracellular canonical auxin signalling promotes
net cellular H+-influx, causing apoplast alkalinisation. The simultaneous activation
of these two counteracting mechanisms poises the root for a rapid, fine-tuned
growth modulation while navigating complex soil environment.
acknowledged_ssus:
- _id: LifeSc
- _id: M-Shop
- _id: Bio
acknowledgement: We thank Nataliia Gnyliukh and Lukas Hörmayer for technical assistance
and Nadine Paris for sharing PM-Cyto seeds. We gratefully acknowledge Life Science,
Machine Shop and Bioimaging Facilities of IST Austria. This project has received
funding from the European Research Council Advanced Grant (ETAP-742985) and the
Austrian Science Fund (FWF) I 3630-B25 to J.F., the National Institutes of Health
(GM067203) to W.M.G., the Netherlands Organization for Scientific Research (NWO;
VIDI-864.13.001.), the Research Foundation-Flanders (FWO; Odysseus II G0D0515N)
and a European Research Council Starting Grant (TORPEDO-714055) to W.S. and B.D.R.,
the VICI grant (865.14.001) from the Netherlands Organization for Scientific Research
to M.R and D.W., the Australian Research Council and China National Distinguished
Expert Project (WQ20174400441) to S.S., the MEXT/JSPS KAKENHI to K.T. (20K06685)
and T.K. (20H05687 and 20H05910), the European Union’s Horizon 2020 research and
innovation programme under the Marie Skłodowska-Curie Grant Agreement No. 665385
and the DOC Fellowship of the Austrian Academy of Sciences to L.L., the China Scholarship
Council to J.C.
article_number: '266395'
article_processing_charge: No
author:
- first_name: Lanxin
full_name: Li, Lanxin
id: 367EF8FA-F248-11E8-B48F-1D18A9856A87
last_name: Li
orcid: 0000-0002-5607-272X
- first_name: Inge
full_name: Verstraeten, Inge
id: 362BF7FE-F248-11E8-B48F-1D18A9856A87
last_name: Verstraeten
orcid: 0000-0001-7241-2328
- first_name: Mark
full_name: Roosjen, Mark
last_name: Roosjen
- first_name: Koji
full_name: Takahashi, Koji
last_name: Takahashi
- first_name: Lesia
full_name: Rodriguez Solovey, Lesia
id: 3922B506-F248-11E8-B48F-1D18A9856A87
last_name: Rodriguez Solovey
orcid: 0000-0002-7244-7237
- first_name: Jack
full_name: Merrin, Jack
id: 4515C308-F248-11E8-B48F-1D18A9856A87
last_name: Merrin
orcid: 0000-0001-5145-4609
- first_name: Jian
full_name: Chen, Jian
last_name: Chen
- first_name: Lana
full_name: Shabala, Lana
last_name: Shabala
- first_name: Wouter
full_name: Smet, Wouter
last_name: Smet
- first_name: Hong
full_name: Ren, Hong
last_name: Ren
- first_name: Steffen
full_name: Vanneste, Steffen
last_name: Vanneste
- first_name: Sergey
full_name: Shabala, Sergey
last_name: Shabala
- first_name: Bert
full_name: De Rybel, Bert
last_name: De Rybel
- first_name: Dolf
full_name: Weijers, Dolf
last_name: Weijers
- first_name: Toshinori
full_name: Kinoshita, Toshinori
last_name: Kinoshita
- first_name: William M.
full_name: Gray, William M.
last_name: Gray
- first_name: Jiří
full_name: Friml, Jiří
id: 4159519E-F248-11E8-B48F-1D18A9856A87
last_name: Friml
orcid: 0000-0002-8302-7596
citation:
ama: Li L, Verstraeten I, Roosjen M, et al. Cell surface and intracellular auxin
signalling for H+-fluxes in root growth. Research Square. doi:10.21203/rs.3.rs-266395/v3
apa: Li, L., Verstraeten, I., Roosjen, M., Takahashi, K., Rodriguez Solovey, L.,
Merrin, J., … Friml, J. (n.d.). Cell surface and intracellular auxin signalling
for H+-fluxes in root growth. Research Square. https://doi.org/10.21203/rs.3.rs-266395/v3
chicago: Li, Lanxin, Inge Verstraeten, Mark Roosjen, Koji Takahashi, Lesia Rodriguez
Solovey, Jack Merrin, Jian Chen, et al. “Cell Surface and Intracellular Auxin
Signalling for H+-Fluxes in Root Growth.” Research Square, n.d. https://doi.org/10.21203/rs.3.rs-266395/v3.
ieee: L. Li et al., “Cell surface and intracellular auxin signalling for
H+-fluxes in root growth,” Research Square. .
ista: Li L, Verstraeten I, Roosjen M, Takahashi K, Rodriguez Solovey L, Merrin J,
Chen J, Shabala L, Smet W, Ren H, Vanneste S, Shabala S, De Rybel B, Weijers D,
Kinoshita T, Gray WM, Friml J. Cell surface and intracellular auxin signalling
for H+-fluxes in root growth. Research Square, 266395.
mla: Li, Lanxin, et al. “Cell Surface and Intracellular Auxin Signalling for H+-Fluxes
in Root Growth.” Research Square, 266395, doi:10.21203/rs.3.rs-266395/v3.
short: L. Li, I. Verstraeten, M. Roosjen, K. Takahashi, L. Rodriguez Solovey, J.
Merrin, J. Chen, L. Shabala, W. Smet, H. Ren, S. Vanneste, S. Shabala, B. De Rybel,
D. Weijers, T. Kinoshita, W.M. Gray, J. Friml, Research Square (n.d.).
corr_author: '1'
date_created: 2021-10-06T08:56:22Z
date_published: 2021-09-09T00:00:00Z
date_updated: 2026-05-12T22:31:20Z
day: '09'
department:
- _id: JiFr
- _id: NanoFab
doi: 10.21203/rs.3.rs-266395/v3
ec_funded: 1
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.doi.org/10.21203/rs.3.rs-266395/v3
month: '09'
oa: 1
oa_version: Preprint
project:
- _id: 2564DBCA-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '665385'
name: International IST Doctoral Program
- _id: 261099A6-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '742985'
name: Tracing Evolution of Auxin Transport and Polarity in Plants
- _id: 26538374-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: I03630
name: Molecular mechanisms of endocytic cargo recognition in plants
- _id: 26B4D67E-B435-11E9-9278-68D0E5697425
grant_number: '25351'
name: 'A Case Study of Plant Growth Regulation: Molecular Mechanism of Auxin-mediated
Rapid Growth Inhibition in Arabidopsis Root'
publication: Research Square
publication_identifier:
issn:
- 2693-5015
publication_status: draft
related_material:
record:
- id: '10223'
relation: later_version
status: public
- id: '10083'
relation: dissertation_contains
status: public
status: public
title: Cell surface and intracellular auxin signalling for H+-fluxes in root growth
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: preprint
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2021'
...
---
_id: '10167'
abstract:
- lang: eng
text: Schistosomes, the human parasites responsible for snail fever, are female-heterogametic.
Different parts of their ZW sex chromosomes have stopped recombining in distinct
lineages, creating “evolutionary strata” of various ages. Although the Z-chromosome
is well characterized at the genomic and molecular level, the W-chromosome has
remained largely unstudied from an evolutionary perspective, as only a few W-linked
genes have been detected outside of the model species Schistosoma mansoni. Here,
we characterize the gene content and evolution of the W-chromosomes of S. mansoni
and of the divergent species S. japonicum. We use a combined RNA/DNA k-mer based
pipeline to assemble around 100 candidate W-specific transcripts in each of the
species. About half of them map to known protein coding genes, the majority homologous
to S. mansoni Z-linked genes. We perform an extended analysis of the evolutionary
strata present in the two species (including characterizing a previously undetected
young stratum in S. japonicum) to infer patterns of sequence and expression evolution
of W-linked genes at different time points after recombination was lost. W-linked
genes show evidence of degeneration, including high rates of protein evolution
and reduced expression. Most are found in young lineage-specific strata, with
only a few high expression ancestral W-genes remaining, consistent with the progressive
erosion of nonrecombining regions. Among these, the splicing factor u2af2 stands
out as a promising candidate for primary sex determination, opening new avenues
for understanding the molecular basis of the reproductive biology of this group.
acknowledged_ssus:
- _id: ScienComp
acknowledgement: The authors thank IT support at IST Austria for providing an optimal
environment for bioinformatic analyses. This work was supported by an Austrian Science
Foundation FWF grant (Project P28842) to B.V.
article_processing_charge: No
article_type: original
author:
- first_name: Marwan N
full_name: Elkrewi, Marwan N
id: 0B46FACA-A8E1-11E9-9BD3-79D1E5697425
last_name: Elkrewi
orcid: 0000-0002-5328-7231
- first_name: Mikhail A.
full_name: Moldovan, Mikhail A.
id: c8bb7f32-3315-11ec-b58b-e5950e6c14a0
last_name: Moldovan
orcid: 0000-0002-8876-6494
- first_name: Marion A L
full_name: Picard, Marion A L
id: 2C921A7A-F248-11E8-B48F-1D18A9856A87
last_name: Picard
orcid: 0000-0002-8101-2518
- first_name: Beatriz
full_name: Vicoso, Beatriz
id: 49E1C5C6-F248-11E8-B48F-1D18A9856A87
last_name: Vicoso
orcid: 0000-0002-4579-8306
citation:
ama: Elkrewi MN, Moldovan MA, Picard MAL, Vicoso B. Schistosome W-linked genes inform
temporal dynamics of sex chromosome evolution and suggest candidate for sex determination.
Molecular Biology and Evolution. 2021;138(12):5345-5358. doi:10.1093/molbev/msab178
apa: Elkrewi, M. N., Moldovan, M. A., Picard, M. A. L., & Vicoso, B. (2021).
Schistosome W-linked genes inform temporal dynamics of sex chromosome evolution
and suggest candidate for sex determination. Molecular Biology and Evolution.
Oxford University Press . https://doi.org/10.1093/molbev/msab178
chicago: Elkrewi, Marwan N, Mikhail A. Moldovan, Marion A L Picard, and Beatriz
Vicoso. “Schistosome W-Linked Genes Inform Temporal Dynamics of Sex Chromosome
Evolution and Suggest Candidate for Sex Determination.” Molecular Biology and
Evolution. Oxford University Press , 2021. https://doi.org/10.1093/molbev/msab178.
ieee: M. N. Elkrewi, M. A. Moldovan, M. A. L. Picard, and B. Vicoso, “Schistosome
W-linked genes inform temporal dynamics of sex chromosome evolution and suggest
candidate for sex determination,” Molecular Biology and Evolution, vol.
138, no. 12. Oxford University Press , pp. 5345–58, 2021.
ista: Elkrewi MN, Moldovan MA, Picard MAL, Vicoso B. 2021. Schistosome W-linked
genes inform temporal dynamics of sex chromosome evolution and suggest candidate
for sex determination. Molecular Biology and Evolution. 138(12), 5345–58.
mla: Elkrewi, Marwan N., et al. “Schistosome W-Linked Genes Inform Temporal Dynamics
of Sex Chromosome Evolution and Suggest Candidate for Sex Determination.” Molecular
Biology and Evolution, vol. 138, no. 12, Oxford University Press , 2021, pp.
5345–58, doi:10.1093/molbev/msab178.
short: M.N. Elkrewi, M.A. Moldovan, M.A.L. Picard, B. Vicoso, Molecular Biology
and Evolution 138 (2021) 5345–58.
corr_author: '1'
date_created: 2021-10-21T07:49:12Z
date_published: 2021-06-19T00:00:00Z
date_updated: 2026-05-12T22:31:22Z
day: '19'
ddc:
- '610'
department:
- _id: BeVi
doi: 10.1093/molbev/msab178
external_id:
isi:
- '000741368600009'
pmid:
- '34146097'
file:
- access_level: open_access
checksum: 1b096702fb356d9c0eb88e1b3fcff5f8
content_type: application/pdf
creator: dernst
date_created: 2022-05-06T09:47:18Z
date_updated: 2022-05-06T09:47:18Z
file_id: '11352'
file_name: 2021_MolecularBiolEvolution_Elkrewi.pdf
file_size: 1008594
relation: main_file
success: 1
file_date_updated: 2022-05-06T09:47:18Z
has_accepted_license: '1'
intvolume: ' 138'
isi: 1
issue: '12'
keyword:
- sex chromosomes
- evolutionary strata
- W-linked gene
- sex determining gene
- schistosome parasites
language:
- iso: eng
month: '06'
oa: 1
oa_version: Published Version
page: 5345-58
pmid: 1
project:
- _id: 250ED89C-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: P28842-B22
name: Sex chromosome evolution under male- and female- heterogamety
publication: Molecular Biology and Evolution
publication_identifier:
eissn:
- 1537-1719
issn:
- 0737-4038
publication_status: published
publisher: 'Oxford University Press '
quality_controlled: '1'
related_material:
record:
- id: '19386'
relation: dissertation_contains
status: public
scopus_import: '1'
status: public
title: Schistosome W-linked genes inform temporal dynamics of sex chromosome evolution
and suggest candidate for sex determination
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 138
year: '2021'
...
---
_id: '11501'
abstract:
- lang: eng
text: We investigated the ultraviolet (UV) spectral properties of faint Lyman-α
emitters (LAEs) in the redshift range 2.9 ≤ z ≤ 4.6, and we provide material to
prepare future observations of the faint Universe. We used data from the MUSE
Hubble Ultra Deep Survey to construct mean rest-frame spectra of continuum-faint
(median MUV of −18 and down to MUV of −16), low stellar mass (median value of
108.4 M⊙ and down to 107 M⊙) LAEs at redshift z ≳ 3. We computed various averaged
spectra of LAEs, subsampled on the basis of their observational (e.g., Lyα strength,
UV magnitude and spectral slope) and physical (e.g., stellar mass and star-formation
rate) properties. We searched for UV spectral features other than Lyα, such as
higher ionization nebular emission lines and absorption features. We successfully
observed the O III]λ1666 and [C III]λ1907+C III]λ1909 collisionally excited emission
lines and the He IIλ1640 recombination feature, as well as the resonant C IVλλ1548,1551
doublet either in emission or P-Cygni. We compared the observed spectral properties
of the different mean spectra and find the emission lines to vary with the observational
and physical properties of the LAEs. In particular, the mean spectra of LAEs with
larger Lyα equivalent widths, fainter UV magnitudes, bluer UV spectral slopes,
and lower stellar masses show the strongest nebular emission. The line ratios
of these lines are similar to those measured in the spectra of local metal-poor
galaxies, while their equivalent widths are weaker compared to the handful of
extreme values detected in individual spectra of z > 2 galaxies. This suggests
that weak UV features are likely ubiquitous in high z, low-mass, and faint LAEs.
We publicly released the stacked spectra, as they can serve as empirical templates
for the design of future observations, such as those with the James Webb Space
Telescope and the Extremely Large Telescope.
acknowledgement: 'We thank Margherita Talia, Stéphane Charlot, Adele Plat and Alba
Vidal-García for helpful discussions. This work is supported by the ERC advanced
grant 339659-MUSICOS (R. Bacon). AF acknowledges the support from grant PRIN MIUR
2017 20173ML3WW. MVM and JP would like to thank the Leiden/ESA Astrophysics Program
for Summer Students (LEAPS) for funding at the outset of this project. FL, HK, and
AV acknowledge support from the ERC starting grant ERC-757258-TRIPLE. TH was supported
by Leading Initiative for Excellent Young Researchers, MEXT, Japan. JB acknowledges
support by FCT/MCTES through national funds by the grant UID/FIS/04434/2019, UIDB/04434/2020
and UIDP/04434/2020 and through the Investigador FCT Contract No. IF/01654/2014/CP1215/CT0003.
HI acknowledges support from JSPS KAKENHI Grant Number JP19K23462. We would also
like to thank the organizers and participants of the Leiden Lorentz Center workshop:
Revolutionary Spectroscopy of Today as a Springboard to Webb. This work made use
of several open source python packages: NUMPY (van der Walt et al. 2011), MATPLOTLIB
(Hunter 2007), ASTROPY (Astropy Collaboration 2013) and MPDAF (MUSE Python Data
Analysis Framework, Piqueras et al. 2019).'
article_number: A118
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Anna
full_name: Feltre, Anna
last_name: Feltre
- first_name: Michael V.
full_name: Maseda, Michael V.
last_name: Maseda
- first_name: Roland
full_name: Bacon, Roland
last_name: Bacon
- first_name: Jayadev
full_name: Pradeep, Jayadev
last_name: Pradeep
- first_name: Floriane
full_name: Leclercq, Floriane
last_name: Leclercq
- first_name: Haruka
full_name: Kusakabe, Haruka
last_name: Kusakabe
- first_name: Lutz
full_name: Wisotzki, Lutz
last_name: Wisotzki
- first_name: Takuya
full_name: Hashimoto, Takuya
last_name: Hashimoto
- first_name: Kasper B.
full_name: Schmidt, Kasper B.
last_name: Schmidt
- first_name: Jeremy
full_name: Blaizot, Jeremy
last_name: Blaizot
- first_name: Jarle
full_name: Brinchmann, Jarle
last_name: Brinchmann
- first_name: Leindert
full_name: Boogaard, Leindert
last_name: Boogaard
- first_name: Sebastiano
full_name: Cantalupo, Sebastiano
last_name: Cantalupo
- first_name: David
full_name: Carton, David
last_name: Carton
- first_name: Hanae
full_name: Inami, Hanae
last_name: Inami
- first_name: Wolfram
full_name: Kollatschny, Wolfram
last_name: Kollatschny
- first_name: Raffaella A.
full_name: Marino, Raffaella A.
last_name: Marino
- first_name: Jorryt J
full_name: Matthee, Jorryt J
id: 7439a258-f3c0-11ec-9501-9df22fe06720
last_name: Matthee
orcid: 0000-0003-2871-127X
- first_name: Themiya
full_name: Nanayakkara, Themiya
last_name: Nanayakkara
- first_name: Johan
full_name: Richard, Johan
last_name: Richard
- first_name: Joop
full_name: Schaye, Joop
last_name: Schaye
- first_name: Laurence
full_name: Tresse, Laurence
last_name: Tresse
- first_name: Tanya
full_name: Urrutia, Tanya
last_name: Urrutia
- first_name: Anne
full_name: Verhamme, Anne
last_name: Verhamme
- first_name: Peter M.
full_name: Weilbacher, Peter M.
last_name: Weilbacher
citation:
ama: 'Feltre A, Maseda MV, Bacon R, et al. The MUSE Hubble Ultra Deep Field Survey:
XV. The mean rest-UV spectra of Lyα emitters at z > 3. Astronomy &
Astrophysics. 2020;641. doi:10.1051/0004-6361/202038133'
apa: 'Feltre, A., Maseda, M. V., Bacon, R., Pradeep, J., Leclercq, F., Kusakabe,
H., … Weilbacher, P. M. (2020). The MUSE Hubble Ultra Deep Field Survey: XV. The
mean rest-UV spectra of Lyα emitters at z > 3. Astronomy & Astrophysics.
EDP Sciences. https://doi.org/10.1051/0004-6361/202038133'
chicago: 'Feltre, Anna, Michael V. Maseda, Roland Bacon, Jayadev Pradeep, Floriane
Leclercq, Haruka Kusakabe, Lutz Wisotzki, et al. “The MUSE Hubble Ultra Deep Field
Survey: XV. The Mean Rest-UV Spectra of Lyα Emitters at z > 3.” Astronomy
& Astrophysics. EDP Sciences, 2020. https://doi.org/10.1051/0004-6361/202038133.'
ieee: 'A. Feltre et al., “The MUSE Hubble Ultra Deep Field Survey: XV. The
mean rest-UV spectra of Lyα emitters at z > 3,” Astronomy & Astrophysics,
vol. 641. EDP Sciences, 2020.'
ista: 'Feltre A, Maseda MV, Bacon R, Pradeep J, Leclercq F, Kusakabe H, Wisotzki
L, Hashimoto T, Schmidt KB, Blaizot J, Brinchmann J, Boogaard L, Cantalupo S,
Carton D, Inami H, Kollatschny W, Marino RA, Matthee JJ, Nanayakkara T, Richard
J, Schaye J, Tresse L, Urrutia T, Verhamme A, Weilbacher PM. 2020. The MUSE Hubble
Ultra Deep Field Survey: XV. The mean rest-UV spectra of Lyα emitters at z >
3. Astronomy & Astrophysics. 641, A118.'
mla: 'Feltre, Anna, et al. “The MUSE Hubble Ultra Deep Field Survey: XV. The Mean
Rest-UV Spectra of Lyα Emitters at z > 3.” Astronomy & Astrophysics,
vol. 641, A118, EDP Sciences, 2020, doi:10.1051/0004-6361/202038133.'
short: A. Feltre, M.V. Maseda, R. Bacon, J. Pradeep, F. Leclercq, H. Kusakabe, L.
Wisotzki, T. Hashimoto, K.B. Schmidt, J. Blaizot, J. Brinchmann, L. Boogaard,
S. Cantalupo, D. Carton, H. Inami, W. Kollatschny, R.A. Marino, J.J. Matthee,
T. Nanayakkara, J. Richard, J. Schaye, L. Tresse, T. Urrutia, A. Verhamme, P.M.
Weilbacher, Astronomy & Astrophysics 641 (2020).
date_created: 2022-07-06T09:38:16Z
date_published: 2020-09-18T00:00:00Z
date_updated: 2022-07-19T09:35:43Z
day: '18'
doi: 10.1051/0004-6361/202038133
extern: '1'
external_id:
arxiv:
- '2007.01878'
intvolume: ' 641'
keyword:
- Space and Planetary Science
- Astronomy and Astrophysics
- 'galaxies: evolution / galaxies: high-redshift / ISM: lines and bands / ultraviolet:
ISM / ultraviolet: galaxies'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/2007.01878
month: '09'
oa: 1
oa_version: Published Version
publication: Astronomy & Astrophysics
publication_identifier:
eissn:
- 1432-0746
issn:
- 0004-6361
publication_status: published
publisher: EDP Sciences
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'The MUSE Hubble Ultra Deep Field Survey: XV. The mean rest-UV spectra of Lyα
emitters at z > 3'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 641
year: '2020'
...
---
_id: '11503'
abstract:
- lang: eng
text: "Context. The Lyα emitter (LAE) fraction, XLAE, is a potentially powerful
probe of the evolution of the intergalactic neutral hydrogen gas fraction. However,
uncertainties in the measurement of XLAE are still under debate.\r\nAims. Thanks
to deep data obtained with the integral field spectrograph Multi Unit Spectroscopic
Explorer (MUSE), we can measure the evolution of the LAE fraction homogeneously
over a wide redshift range of z ≈ 3–6 for UV-faint galaxies (down to UV magnitudes
of M1500 ≈ −17.75). This is a significantly fainter range than in former studies
(M1500 ≤ −18.75) and it allows us to probe the bulk of the population of high-redshift
star-forming galaxies.\r\nMethods. We constructed a UV-complete photometric-redshift
sample following UV luminosity functions and measured the Lyα emission with MUSE
using the latest (second) data release from the MUSE Hubble Ultra Deep Field Survey.\r\nResults.
We derived the redshift evolution of XLAE for M1500 ∈ [ − 21.75; −17.75] for the
first time with a equivalent width range EW(Lyα) ≥ 65 Å and found low values of
XLAE ≲ 30% at z ≲ 6. The best-fit linear relation is XLAE = 0.07+0.06−0.03z −
0.22+0.12−0.24. For M1500 ∈ [ − 20.25; −18.75] and EW(Lyα) ≥ 25 Å, our XLAE values
are consistent with those in the literature within 1σ at z ≲ 5, but our median
values are systematically lower than reported values over the whole redshift range.
In addition, we do not find a significant dependence of XLAE on M1500 for EW(Lyα)
≥ 50 Å at z ≈ 3–4, in contrast with previous work. The differences in XLAE mainly
arise from selection biases for Lyman Break Galaxies (LBGs) in the literature:
UV-faint LBGs are more easily selected if they have strong Lyα emission, hence
XLAE is biased towards higher values when those samples are used.\r\nConclusions.
Our results suggest either a lower increase of XLAE towards z ≈ 6 than previously
suggested, or even a turnover of XLAE at z ≈ 5.5, which may be the signature of
a late or patchy reionization process. We compared our results with predictions
from a cosmological galaxy evolution model. We find that a model with a bursty
star formation (SF) can reproduce our observed LAE fractions much better than
models where SF is a smooth function of time."
acknowledgement: We thank the anonymous referee for constructive comments and suggestions.
We would like to express our gratitude to Stephane De Barros and Pablo Arrabal Haro
for kindly providing their data plotted in Figs. 1, 2, and 8. We are grateful to
Kazuhiro Shimasaku, Masami Ouchi, Rieko Momose, Daniel Schaerer, Hidenobu Yajima,
Taku Okamura, Makoto Ando, and Hinako Goto for giving insightful comments and suggestions.
This work is based on observations taken by VLT, which is operated by European Southern
Observatory. This research made use of Astropy (http://www.astropy.org), which is
a community-developed core Python package for Astronomy (Astropy Collaboration 2013,
2018), MARZ, MPDAF, and matplotlib (Hunter 2007). H.K. acknowledges support from
Japan Society for the Promotion of Science (JSPS) through the JSPS Research Fellowship
for Young Scientists and Overseas Challenge Program for Young Researchers. AV acknowledges
support from the ERC starting grant 757258-TRIPLE and the SNF Professorship 176808-TRIPLE.
This work was supported by the project FOGHAR (Agence Nationale de la Recherche,
ANR-13-BS05-0010-02). JB acknowledges support from the ORAGE project from the Agence
Nationale de la Recherche under grant ANR-14-CE33-0016-03. JR acknowledges support
from the ERC starting grant 336736-CALENDS. T. H. acknowledges supports by the Grant-inAid
for Scientic Research 19J01620.
article_number: A12
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Haruka
full_name: Kusakabe, Haruka
last_name: Kusakabe
- first_name: Jérémy
full_name: Blaizot, Jérémy
last_name: Blaizot
- first_name: Thibault
full_name: Garel, Thibault
last_name: Garel
- first_name: Anne
full_name: Verhamme, Anne
last_name: Verhamme
- first_name: Roland
full_name: Bacon, Roland
last_name: Bacon
- first_name: Johan
full_name: Richard, Johan
last_name: Richard
- first_name: Takuya
full_name: Hashimoto, Takuya
last_name: Hashimoto
- first_name: Hanae
full_name: Inami, Hanae
last_name: Inami
- first_name: Simon
full_name: Conseil, Simon
last_name: Conseil
- first_name: Bruno
full_name: Guiderdoni, Bruno
last_name: Guiderdoni
- first_name: Alyssa B.
full_name: Drake, Alyssa B.
last_name: Drake
- first_name: Edmund
full_name: Christian Herenz, Edmund
last_name: Christian Herenz
- first_name: Joop
full_name: Schaye, Joop
last_name: Schaye
- first_name: Pascal
full_name: Oesch, Pascal
last_name: Oesch
- first_name: Jorryt J
full_name: Matthee, Jorryt J
id: 7439a258-f3c0-11ec-9501-9df22fe06720
last_name: Matthee
orcid: 0000-0003-2871-127X
- first_name: Raffaella
full_name: Anna Marino, Raffaella
last_name: Anna Marino
- first_name: Kasper
full_name: Borello Schmidt, Kasper
last_name: Borello Schmidt
- first_name: Roser
full_name: Pelló, Roser
last_name: Pelló
- first_name: Michael
full_name: Maseda, Michael
last_name: Maseda
- first_name: Floriane
full_name: Leclercq, Floriane
last_name: Leclercq
- first_name: Josephine
full_name: Kerutt, Josephine
last_name: Kerutt
- first_name: Guillaume
full_name: Mahler, Guillaume
last_name: Mahler
citation:
ama: 'Kusakabe H, Blaizot J, Garel T, et al. The MUSE Hubble Ultra Deep Field Survey:
XIV. Evolution of the Lyα emitter fraction from z = 3 to z = 6. Astronomy &
Astrophysics. 2020;638. doi:10.1051/0004-6361/201937340'
apa: 'Kusakabe, H., Blaizot, J., Garel, T., Verhamme, A., Bacon, R., Richard, J.,
… Mahler, G. (2020). The MUSE Hubble Ultra Deep Field Survey: XIV. Evolution of
the Lyα emitter fraction from z = 3 to z = 6. Astronomy & Astrophysics.
EDP Sciences. https://doi.org/10.1051/0004-6361/201937340'
chicago: 'Kusakabe, Haruka, Jérémy Blaizot, Thibault Garel, Anne Verhamme, Roland
Bacon, Johan Richard, Takuya Hashimoto, et al. “The MUSE Hubble Ultra Deep Field
Survey: XIV. Evolution of the Lyα Emitter Fraction from z = 3 to z = 6.” Astronomy
& Astrophysics. EDP Sciences, 2020. https://doi.org/10.1051/0004-6361/201937340.'
ieee: 'H. Kusakabe et al., “The MUSE Hubble Ultra Deep Field Survey: XIV.
Evolution of the Lyα emitter fraction from z = 3 to z = 6,” Astronomy &
Astrophysics, vol. 638. EDP Sciences, 2020.'
ista: 'Kusakabe H, Blaizot J, Garel T, Verhamme A, Bacon R, Richard J, Hashimoto
T, Inami H, Conseil S, Guiderdoni B, Drake AB, Christian Herenz E, Schaye J, Oesch
P, Matthee JJ, Anna Marino R, Borello Schmidt K, Pelló R, Maseda M, Leclercq F,
Kerutt J, Mahler G. 2020. The MUSE Hubble Ultra Deep Field Survey: XIV. Evolution
of the Lyα emitter fraction from z = 3 to z = 6. Astronomy & Astrophysics.
638, A12.'
mla: 'Kusakabe, Haruka, et al. “The MUSE Hubble Ultra Deep Field Survey: XIV. Evolution
of the Lyα Emitter Fraction from z = 3 to z = 6.” Astronomy & Astrophysics,
vol. 638, A12, EDP Sciences, 2020, doi:10.1051/0004-6361/201937340.'
short: H. Kusakabe, J. Blaizot, T. Garel, A. Verhamme, R. Bacon, J. Richard, T.
Hashimoto, H. Inami, S. Conseil, B. Guiderdoni, A.B. Drake, E. Christian Herenz,
J. Schaye, P. Oesch, J.J. Matthee, R. Anna Marino, K. Borello Schmidt, R. Pelló,
M. Maseda, F. Leclercq, J. Kerutt, G. Mahler, Astronomy & Astrophysics 638
(2020).
date_created: 2022-07-06T09:50:48Z
date_published: 2020-06-03T00:00:00Z
date_updated: 2022-07-19T09:35:20Z
day: '03'
doi: 10.1051/0004-6361/201937340
extern: '1'
external_id:
arxiv:
- '2003.12083'
intvolume: ' 638'
keyword:
- Space and Planetary Science
- Astronomy and Astrophysics
- 'dark ages / reionization / first stars / early Universe / cosmology: observations
/ galaxies: evolution / galaxies: high-redshift / intergalactic medium'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/2003.12083
month: '06'
oa: 1
oa_version: Published Version
publication: Astronomy & Astrophysics
publication_identifier:
eissn:
- 1432-0746
issn:
- 0004-6361
publication_status: published
publisher: EDP Sciences
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'The MUSE Hubble Ultra Deep Field Survey: XIV. Evolution of the Lyα emitter
fraction from z = 3 to z = 6'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 638
year: '2020'
...
---
_id: '11504'
abstract:
- lang: eng
text: We present spatially resolved maps of six individually-detected Lyman α haloes
(LAHs) as well as a first statistical analysis of the Lyman α (Lyα) spectral signature
in the circum-galactic medium of high-redshift star-forming galaxies (−17.5 >
MUV > −21.5) using the Multi-Unit Spectroscopic Explorer. Our resolved spectroscopic
analysis of the LAHs reveals significant intrahalo variations of the Lyα line
profile. Using a three-dimensional two-component model for the Lyα emission, we
measured the full width at half maximum (FWHM), the peak velocity shift, and the
asymmetry of the Lyα line in the core and in the halo of 19 galaxies. We find
that the Lyα line shape is statistically different in the halo compared to the
core (in terms of width, peak wavelength, and asymmetry) for ≈40% of our galaxies.
Similarly to object-by-object based studies and a recent resolved study using
lensing, we find a correlation between the peak velocity shift and the width of
the Lyα line both at the interstellar and circum-galactic scales. This trend has
been predicted by radiative transfer simulations of galactic winds as a result
of resonant scattering in outflows. While there is a lack of correlation between
the spectral properties and the spatial scale lengths of our LAHs, we find a correlation
between the width of the line in the LAH and the halo flux fraction. Interestingly,
UV bright galaxies (MUV < −20) show broader, more redshifted, and less asymmetric
Lyα lines in their haloes. The most significant correlation found is for the FWHM
of the line and the UV continuum slope of the galaxy, suggesting that the redder
galaxies have broader Lyα lines. The generally broad and red line shapes found
in the halo component suggest that the Lyα haloes are powered either by scattering
processes through an outflowing medium, fluorescent emission from outflowing cold
clumps of gas, or a mix of both. Considering the large diversity of the Lyα line
profiles observed in our sample and the lack of strong correlation, the interpretation
of our results is still broadly open and underlines the need for realistic spatially
resolved models of the LAHs.
acknowledgement: F.L., R.B., and S.C. acknowledge support from the ERC advanced grant
339659-MUSICOS. F.L., T.G., H.K., and A.V. acknowledge support from the ERC starting
grant ERC-757258-TRIPLE. A.C. and J.R. acknowledge support from the ERC starting
grant 336736-CALENDS. J.B. acknowledges support by FCT/MCTES through national funds
(PID-DAC) by grant UID/FIS/04434/2019 and through Investigador FCT Contract No.IF/01654/2014/CP1215/CT0003.
T.H. was supported by Leading Initiative for Excellent Young Researchers, MEXT,
Japan.
article_number: A82
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Floriane
full_name: Leclercq, Floriane
last_name: Leclercq
- first_name: Roland
full_name: Bacon, Roland
last_name: Bacon
- first_name: Anne
full_name: Verhamme, Anne
last_name: Verhamme
- first_name: Thibault
full_name: Garel, Thibault
last_name: Garel
- first_name: Jérémy
full_name: Blaizot, Jérémy
last_name: Blaizot
- first_name: Jarle
full_name: Brinchmann, Jarle
last_name: Brinchmann
- first_name: Sebastiano
full_name: Cantalupo, Sebastiano
last_name: Cantalupo
- first_name: Adélaïde
full_name: Claeyssens, Adélaïde
last_name: Claeyssens
- first_name: Simon
full_name: Conseil, Simon
last_name: Conseil
- first_name: Thierry
full_name: Contini, Thierry
last_name: Contini
- first_name: Takuya
full_name: Hashimoto, Takuya
last_name: Hashimoto
- first_name: Edmund Christian
full_name: Herenz, Edmund Christian
last_name: Herenz
- first_name: Haruka
full_name: Kusakabe, Haruka
last_name: Kusakabe
- first_name: Raffaella Anna
full_name: Marino, Raffaella Anna
last_name: Marino
- first_name: Michael
full_name: Maseda, Michael
last_name: Maseda
- first_name: Jorryt J
full_name: Matthee, Jorryt J
id: 7439a258-f3c0-11ec-9501-9df22fe06720
last_name: Matthee
orcid: 0000-0003-2871-127X
- first_name: Peter
full_name: Mitchell, Peter
last_name: Mitchell
- first_name: Gabriele
full_name: Pezzulli, Gabriele
last_name: Pezzulli
- first_name: Johan
full_name: Richard, Johan
last_name: Richard
- first_name: Kasper Borello
full_name: Schmidt, Kasper Borello
last_name: Schmidt
- first_name: Lutz
full_name: Wisotzki, Lutz
last_name: Wisotzki
citation:
ama: 'Leclercq F, Bacon R, Verhamme A, et al. The MUSE Hubble Ultra Deep field survey:
XIII. Spatially resolved spectral properties of Lyman α haloes around star-forming
galaxies at z > 3. Astronomy & Astrophysics. 2020;635. doi:10.1051/0004-6361/201937339'
apa: 'Leclercq, F., Bacon, R., Verhamme, A., Garel, T., Blaizot, J., Brinchmann,
J., … Wisotzki, L. (2020). The MUSE Hubble Ultra Deep field survey: XIII. Spatially
resolved spectral properties of Lyman α haloes around star-forming galaxies at
z > 3. Astronomy & Astrophysics. EDP Sciences. https://doi.org/10.1051/0004-6361/201937339'
chicago: 'Leclercq, Floriane, Roland Bacon, Anne Verhamme, Thibault Garel, Jérémy
Blaizot, Jarle Brinchmann, Sebastiano Cantalupo, et al. “The MUSE Hubble Ultra
Deep Field Survey: XIII. Spatially Resolved Spectral Properties of Lyman α Haloes
around Star-Forming Galaxies at z > 3.” Astronomy & Astrophysics.
EDP Sciences, 2020. https://doi.org/10.1051/0004-6361/201937339.'
ieee: 'F. Leclercq et al., “The MUSE Hubble Ultra Deep field survey: XIII.
Spatially resolved spectral properties of Lyman α haloes around star-forming galaxies
at z > 3,” Astronomy & Astrophysics, vol. 635. EDP Sciences, 2020.'
ista: 'Leclercq F, Bacon R, Verhamme A, Garel T, Blaizot J, Brinchmann J, Cantalupo
S, Claeyssens A, Conseil S, Contini T, Hashimoto T, Herenz EC, Kusakabe H, Marino
RA, Maseda M, Matthee JJ, Mitchell P, Pezzulli G, Richard J, Schmidt KB, Wisotzki
L. 2020. The MUSE Hubble Ultra Deep field survey: XIII. Spatially resolved spectral
properties of Lyman α haloes around star-forming galaxies at z > 3. Astronomy
& Astrophysics. 635, A82.'
mla: 'Leclercq, Floriane, et al. “The MUSE Hubble Ultra Deep Field Survey: XIII.
Spatially Resolved Spectral Properties of Lyman α Haloes around Star-Forming Galaxies
at z > 3.” Astronomy & Astrophysics, vol. 635, A82, EDP Sciences,
2020, doi:10.1051/0004-6361/201937339.'
short: F. Leclercq, R. Bacon, A. Verhamme, T. Garel, J. Blaizot, J. Brinchmann,
S. Cantalupo, A. Claeyssens, S. Conseil, T. Contini, T. Hashimoto, E.C. Herenz,
H. Kusakabe, R.A. Marino, M. Maseda, J.J. Matthee, P. Mitchell, G. Pezzulli, J.
Richard, K.B. Schmidt, L. Wisotzki, Astronomy & Astrophysics 635 (2020).
date_created: 2022-07-06T09:56:20Z
date_published: 2020-03-11T00:00:00Z
date_updated: 2022-07-19T09:36:58Z
day: '11'
doi: 10.1051/0004-6361/201937339
extern: '1'
external_id:
arxiv:
- '2002.05731'
intvolume: ' 635'
keyword:
- Space and Planetary Science
- 'Astronomy and Astrophysics galaxies: high-redshift / galaxies: formation / galaxies:
evolution / cosmology: observations'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/2002.05731
month: '03'
oa: 1
oa_version: Published Version
publication: Astronomy & Astrophysics
publication_identifier:
eissn:
- 1432-0746
issn:
- 0004-6361
publication_status: published
publisher: EDP Sciences
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'The MUSE Hubble Ultra Deep field survey: XIII. Spatially resolved spectral
properties of Lyman α haloes around star-forming galaxies at z > 3'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 635
year: '2020'
...
---
_id: '11513'
abstract:
- lang: eng
text: We report the spectroscopic confirmation of a new protocluster in the COSMOS
field at z ∼ 2.2, COSMOS Cluster 2.2 (CC2.2), originally identified as an overdensity
of narrowband selected Hα emitting candidates. With only two masks of Keck/MOSFIRE
near-IR spectroscopy in both H (∼1.47–1.81 μm) and K (∼1.92–2.40 μm) bands (∼1.5
hr each), we confirm 35 unique protocluster members with at least two emission
lines detected with S/N > 3. Combined with 12 extra members from the zCOSMOS-deep
spectroscopic survey (47 in total), we estimate a mean redshift and a line-of-sight
velocity dispersion of zmean = 2.23224 ± 0.00101 and σlos = 645 ± 69 km s−1 for
this protocluster, respectively. Assuming virialization and spherical symmetry
for the system, we estimate a total mass of Mvir ∼ (1–2) ×1014M⊙ for the structure.
We evaluate a number density enhancement of δg ∼ 7 for this system and we argue
that the structure is likely not fully virialized at z ∼ 2.2. However, in a spherical
collapse model, δg is expected to grow to a linear matter enhancement of ∼1.9
by z = 0, exceeding the collapse threshold of 1.69, and leading to a fully collapsed
and virialized Coma-type structure with a total mass of Mdyn(z = 0) ∼ 9.2 × 1014M⊙
by now. This observationally efficient confirmation suggests that large narrowband
emission-line galaxy surveys, when combined with ancillary photometric data, can
be used to effectively trace the large-scale structure and protoclusters at a
time when they are mostly dominated by star-forming galaxies.
acknowledgement: We are thankful to the anonymous referee for useful comments and
suggestions that improved the quality of this paper. B.D. acknowledges financial
support from NASA through the Astrophysics Data Analysis Program (ADAP), grant number
NNX12AE20G, and the National Science Foundation, grant number 1716907. B.D. is thankful
to Andreas Faisst, Laura Danly, and Matthew Burlando for their companionship during
the observing run. B.D. is grateful to the COSMOS team for their useful comments
during the team meeting in New York City 2019 May 14–17. A.R. research was made
possible by Friends of W. M. Keck Observatory who philanthropically support the
Keck Science Collaborative (KSC) fund. The observations presented herein were obtained
at the W. M. Keck Observatory (program C236, PI Scoville), which is operated as
a scientific partnership among the California Institute of Technology, the University
of California, and the National Aeronautics and Space Administration. The Observatory
was made possible by the generous financial support of the W. M. Keck Foundation.
The authors would like to recognize and acknowledge the very prominent cultural
role and reverence that the summit of Maunakea has always had within the indigenous
Hawaiian community. We are fortunate to have the opportunity to perform observations
from this mountain.
article_number: '8'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Behnam
full_name: Darvish, Behnam
last_name: Darvish
- first_name: Nick Z.
full_name: Scoville, Nick Z.
last_name: Scoville
- first_name: Christopher
full_name: Martin, Christopher
last_name: Martin
- first_name: David
full_name: Sobral, David
last_name: Sobral
- first_name: Bahram
full_name: Mobasher, Bahram
last_name: Mobasher
- first_name: Alessandro
full_name: Rettura, Alessandro
last_name: Rettura
- first_name: Jorryt J
full_name: Matthee, Jorryt J
id: 7439a258-f3c0-11ec-9501-9df22fe06720
last_name: Matthee
orcid: 0000-0003-2871-127X
- first_name: Peter
full_name: Capak, Peter
last_name: Capak
- first_name: Nima
full_name: Chartab, Nima
last_name: Chartab
- first_name: Shoubaneh
full_name: Hemmati, Shoubaneh
last_name: Hemmati
- first_name: Daniel
full_name: Masters, Daniel
last_name: Masters
- first_name: Hooshang
full_name: Nayyeri, Hooshang
last_name: Nayyeri
- first_name: Donal
full_name: O’Sullivan, Donal
last_name: O’Sullivan
- first_name: Ana
full_name: Paulino-Afonso, Ana
last_name: Paulino-Afonso
- first_name: Zahra
full_name: Sattari, Zahra
last_name: Sattari
- first_name: Abtin
full_name: Shahidi, Abtin
last_name: Shahidi
- first_name: Mara
full_name: Salvato, Mara
last_name: Salvato
- first_name: Brian C.
full_name: Lemaux, Brian C.
last_name: Lemaux
- first_name: Olivier Le
full_name: Fèvre, Olivier Le
last_name: Fèvre
- first_name: Olga
full_name: Cucciati, Olga
last_name: Cucciati
citation:
ama: Darvish B, Scoville NZ, Martin C, et al. Spectroscopic confirmation of a coma
cluster progenitor at z ∼ 2.2. The Astrophysical Journal. 2020;892(1).
doi:10.3847/1538-4357/ab75c3
apa: Darvish, B., Scoville, N. Z., Martin, C., Sobral, D., Mobasher, B., Rettura,
A., … Cucciati, O. (2020). Spectroscopic confirmation of a coma cluster progenitor
at z ∼ 2.2. The Astrophysical Journal. IOP Publishing. https://doi.org/10.3847/1538-4357/ab75c3
chicago: Darvish, Behnam, Nick Z. Scoville, Christopher Martin, David Sobral, Bahram
Mobasher, Alessandro Rettura, Jorryt J Matthee, et al. “Spectroscopic Confirmation
of a Coma Cluster Progenitor at z ∼ 2.2.” The Astrophysical Journal. IOP
Publishing, 2020. https://doi.org/10.3847/1538-4357/ab75c3.
ieee: B. Darvish et al., “Spectroscopic confirmation of a coma cluster progenitor
at z ∼ 2.2,” The Astrophysical Journal, vol. 892, no. 1. IOP Publishing,
2020.
ista: Darvish B, Scoville NZ, Martin C, Sobral D, Mobasher B, Rettura A, Matthee
JJ, Capak P, Chartab N, Hemmati S, Masters D, Nayyeri H, O’Sullivan D, Paulino-Afonso
A, Sattari Z, Shahidi A, Salvato M, Lemaux BC, Fèvre OL, Cucciati O. 2020. Spectroscopic
confirmation of a coma cluster progenitor at z ∼ 2.2. The Astrophysical Journal.
892(1), 8.
mla: Darvish, Behnam, et al. “Spectroscopic Confirmation of a Coma Cluster Progenitor
at z ∼ 2.2.” The Astrophysical Journal, vol. 892, no. 1, 8, IOP Publishing,
2020, doi:10.3847/1538-4357/ab75c3.
short: B. Darvish, N.Z. Scoville, C. Martin, D. Sobral, B. Mobasher, A. Rettura,
J.J. Matthee, P. Capak, N. Chartab, S. Hemmati, D. Masters, H. Nayyeri, D. O’Sullivan,
A. Paulino-Afonso, Z. Sattari, A. Shahidi, M. Salvato, B.C. Lemaux, O.L. Fèvre,
O. Cucciati, The Astrophysical Journal 892 (2020).
date_created: 2022-07-06T13:10:51Z
date_published: 2020-03-19T00:00:00Z
date_updated: 2022-07-19T09:31:35Z
day: '19'
doi: 10.3847/1538-4357/ab75c3
extern: '1'
external_id:
arxiv:
- '2002.06207'
intvolume: ' 892'
issue: '1'
keyword:
- Space and Planetary Science
- Astronomy and Astrophysics
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/2002.06207
month: '03'
oa: 1
oa_version: Preprint
publication: The Astrophysical Journal
publication_identifier:
eissn:
- 1538-4357
issn:
- 0004-637X
publication_status: published
publisher: IOP Publishing
quality_controlled: '1'
scopus_import: '1'
status: public
title: Spectroscopic confirmation of a coma cluster progenitor at z ∼ 2.2
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 892
year: '2020'
...
---
_id: '11528'
abstract:
- lang: eng
text: Ly α emission lines are typically found to be redshifted with respect to the
systemic redshifts of galaxies, likely due to resonant scattering of Ly α photons.
Here, we measure the average velocity offset for a sample of 96 z ≈ 3.3 Ly α emitters
(LAEs) with a median Ly α flux (luminosity) of ≈10−17 erg cm−2 s−1 (≈1042 erg
s−1) and a median star formation rate (SFR) of ≈1.3 M⊙ yr−1 (not corrected for
possible dust extinction), detected by the Multi-Unit Spectroscopic Explorer as
part of our MUSEQuBES circumgalactic medium (CGM) survey. By postulating that
the stacked CGM absorption profiles of these LAEs, probed by eight background
quasars, must be centred on the systemic redshift, we measure an average velocity
offset, Voffset = 171\pm 8 km s−1, between the Ly α emission peak and the systemic
redshift. The observed Voffset is lower by factors of ≈1.4 and ≈2.6 compared to
the velocity offsets measured for narrow-band-selected LAEs and Lyman break galaxies,
respectively, which probe galaxies with higher masses and SFRs. Consistent with
earlier studies based on direct measurements for individual objects, we find that
the Voffset is correlated with the full width at half-maximum of the red peak
of the Ly α line, and anticorrelated with the rest-frame equivalent width. Moreover,
we find that Voffset is correlated with SFR with a sub-linear scaling relation,
Voffset∝SFR0.16±0.03. Adopting the mass scaling for main-sequence galaxies, such
a relation suggests that Voffset scales with the circular velocity of the dark
matter haloes hosting the LAEs.
acknowledgement: 'We thank the anonymous referee for useful suggestions. This study
is based on observations collected at the European Organisation for Astronomical
Research in the Southern Hemisphere under ESO programme(s): 094.A-0131(B), 095.A
0200(A), 096.A0222(A), 097.A-0089(A), and 099.A-0159(A). SM acknowledges support
from the Alexander von Humboldt Foundation, Germany. SM thanks Christian Herenz
for useful discussion. SC gratefully acknowledges support from Swiss National Science
Foundation grant PP00P2 163824. JB acknowledges support by FCT/MCTES through national
funds by grant UID/FIS/04434/2019 and through Investigador FCT Contract No. IF/01654/2014/CP1215/CT0003.
NB and JZ acknowledge support from ANR grant ANR-17-CE31- 0017 (3DGasFlows). AC
and JR acknowledge support from the ERC starting grant 336736-CALENDS. MA acknowledges
support from European Union’s H2020 Marie Skłodowska-Curie Actions grant 721463
to the SUNDIAL ITN, and from the Spanish Ministry of Economy and Competitiveness
(MINECO) under grant number AYA2016-76219-P. MA also acknowledges support from the
Fundacion BBVA under its 2017 programme of assistance to ´scientific research groups,
for the project ‘Using machine-learning techniques to drag galaxies from the noise
in deep imaging’. FL and AV acknowledge support from the ERC starting grant ERC757258-TRIPLE.'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Sowgat
full_name: Muzahid, Sowgat
last_name: Muzahid
- first_name: Joop
full_name: Schaye, Joop
last_name: Schaye
- first_name: Raffaella Anna
full_name: Marino, Raffaella Anna
last_name: Marino
- first_name: Sebastiano
full_name: Cantalupo, Sebastiano
last_name: Cantalupo
- first_name: Jarle
full_name: Brinchmann, Jarle
last_name: Brinchmann
- first_name: Thierry
full_name: Contini, Thierry
last_name: Contini
- first_name: Martin
full_name: Wendt, Martin
last_name: Wendt
- first_name: Lutz
full_name: Wisotzki, Lutz
last_name: Wisotzki
- first_name: Johannes
full_name: Zabl, Johannes
last_name: Zabl
- first_name: Nicolas
full_name: Bouché, Nicolas
last_name: Bouché
- first_name: Mohammad
full_name: Akhlaghi, Mohammad
last_name: Akhlaghi
- first_name: Hsiao-Wen
full_name: Chen, Hsiao-Wen
last_name: Chen
- first_name: Adélaîde
full_name: Claeyssens, Adélaîde
last_name: Claeyssens
- first_name: Sean
full_name: Johnson, Sean
last_name: Johnson
- first_name: Floriane
full_name: Leclercq, Floriane
last_name: Leclercq
- first_name: Michael
full_name: Maseda, Michael
last_name: Maseda
- first_name: Jorryt J
full_name: Matthee, Jorryt J
id: 7439a258-f3c0-11ec-9501-9df22fe06720
last_name: Matthee
orcid: 0000-0003-2871-127X
- first_name: Johan
full_name: Richard, Johan
last_name: Richard
- first_name: Tanya
full_name: Urrutia, Tanya
last_name: Urrutia
- first_name: Anne
full_name: Verhamme, Anne
last_name: Verhamme
citation:
ama: 'Muzahid S, Schaye J, Marino RA, et al. MUSEQuBES: Calibrating the redshifts
of Lyα emitters using stacked circumgalactic medium absorption profiles. Monthly
Notices of the Royal Astronomical Society. 2020;496(2):1013-1022. doi:10.1093/mnras/staa1347'
apa: 'Muzahid, S., Schaye, J., Marino, R. A., Cantalupo, S., Brinchmann, J., Contini,
T., … Verhamme, A. (2020). MUSEQuBES: Calibrating the redshifts of Lyα emitters
using stacked circumgalactic medium absorption profiles. Monthly Notices of
the Royal Astronomical Society. Oxford University Press. https://doi.org/10.1093/mnras/staa1347'
chicago: 'Muzahid, Sowgat, Joop Schaye, Raffaella Anna Marino, Sebastiano Cantalupo,
Jarle Brinchmann, Thierry Contini, Martin Wendt, et al. “MUSEQuBES: Calibrating
the Redshifts of Lyα Emitters Using Stacked Circumgalactic Medium Absorption Profiles.”
Monthly Notices of the Royal Astronomical Society. Oxford University Press,
2020. https://doi.org/10.1093/mnras/staa1347.'
ieee: 'S. Muzahid et al., “MUSEQuBES: Calibrating the redshifts of Lyα emitters
using stacked circumgalactic medium absorption profiles,” Monthly Notices of
the Royal Astronomical Society, vol. 496, no. 2. Oxford University Press,
pp. 1013–1022, 2020.'
ista: 'Muzahid S, Schaye J, Marino RA, Cantalupo S, Brinchmann J, Contini T, Wendt
M, Wisotzki L, Zabl J, Bouché N, Akhlaghi M, Chen H-W, Claeyssens A, Johnson S,
Leclercq F, Maseda M, Matthee JJ, Richard J, Urrutia T, Verhamme A. 2020. MUSEQuBES:
Calibrating the redshifts of Lyα emitters using stacked circumgalactic medium
absorption profiles. Monthly Notices of the Royal Astronomical Society. 496(2),
1013–1022.'
mla: 'Muzahid, Sowgat, et al. “MUSEQuBES: Calibrating the Redshifts of Lyα Emitters
Using Stacked Circumgalactic Medium Absorption Profiles.” Monthly Notices of
the Royal Astronomical Society, vol. 496, no. 2, Oxford University Press,
2020, pp. 1013–22, doi:10.1093/mnras/staa1347.'
short: S. Muzahid, J. Schaye, R.A. Marino, S. Cantalupo, J. Brinchmann, T. Contini,
M. Wendt, L. Wisotzki, J. Zabl, N. Bouché, M. Akhlaghi, H.-W. Chen, A. Claeyssens,
S. Johnson, F. Leclercq, M. Maseda, J.J. Matthee, J. Richard, T. Urrutia, A. Verhamme,
Monthly Notices of the Royal Astronomical Society 496 (2020) 1013–1022.
date_created: 2022-07-07T10:20:11Z
date_published: 2020-08-01T00:00:00Z
date_updated: 2022-08-18T11:00:24Z
day: '01'
doi: 10.1093/mnras/staa1347
extern: '1'
external_id:
arxiv:
- '1910.03593'
intvolume: ' 496'
issue: '2'
keyword:
- Space and Planetary Science
- Astronomy and Astrophysics
- 'galaxies: haloes'
- 'galaxies: high-redshift'
- 'quasars: absorption lines'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1910.03593
month: '08'
oa: 1
oa_version: Preprint
page: 1013-1022
publication: Monthly Notices of the Royal Astronomical Society
publication_identifier:
eissn:
- 1365-2966
issn:
- 0035-8711
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
related_material:
link:
- relation: erratum
url: https://doi.org/10.1093/mnras/staa2668
scopus_import: '1'
status: public
title: 'MUSEQuBES: Calibrating the redshifts of Lyα emitters using stacked circumgalactic
medium absorption profiles'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 496
year: '2020'
...
---
_id: '11529'
abstract:
- lang: eng
text: CR7 is among the most luminous Ly α emitters (LAEs) known at z = 6.6 and consists
of at least three UV components that are surrounded by Ly α emission. Previous
studies have suggested that it may host an extreme ionizing source. Here, we present
deep integral field spectroscopy of CR7 with VLT/Multi Unit Spectroscopic Explorer
(MUSE). We measure extended emission with a similar halo scale length as typical
LAEs at z ≈ 5. CR7’s Ly α halo is clearly elongated along the direction connecting
the multiple components, likely tracing the underlying gas distribution. The Ly α
emission originates almost exclusively from the brightest UV component, but we
also identify a faint kinematically distinct Ly α emitting region nearby a fainter
component. Combined with new near-infrared data, the MUSE data show that the rest-frame
Ly α equivalent width (EW) is ≈100 Å. This is a factor 4 higher than the EW measured
in low-redshift analogues with carefully matched Ly α profiles (and thus arguably
H I column density), but this EW can plausibly be explained by star formation.
Alternative scenarios requiring active galactic nucleus (AGN) powering are also
disfavoured by the narrower and steeper Ly α spectrum and much smaller IR to UV
ratio compared to obscured AGN in other Ly α blobs. CR7’s Ly α emission, while
extremely luminous, resembles the emission in more common LAEs at lower redshifts
very well and is likely powered by a young metal-poor starburst.
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Jorryt J
full_name: Matthee, Jorryt J
id: 7439a258-f3c0-11ec-9501-9df22fe06720
last_name: Matthee
orcid: 0000-0003-2871-127X
- first_name: Gabriele
full_name: Pezzulli, Gabriele
last_name: Pezzulli
- first_name: Ruari
full_name: Mackenzie, Ruari
last_name: Mackenzie
- first_name: Sebastiano
full_name: Cantalupo, Sebastiano
last_name: Cantalupo
- first_name: Haruka
full_name: Kusakabe, Haruka
last_name: Kusakabe
- first_name: Floriane
full_name: Leclercq, Floriane
last_name: Leclercq
- first_name: David
full_name: Sobral, David
last_name: Sobral
- first_name: Johan
full_name: Richard, Johan
last_name: Richard
- first_name: Lutz
full_name: Wisotzki, Lutz
last_name: Wisotzki
- first_name: Simon
full_name: Lilly, Simon
last_name: Lilly
- first_name: Leindert
full_name: Boogaard, Leindert
last_name: Boogaard
- first_name: Raffaella
full_name: Marino, Raffaella
last_name: Marino
- first_name: Michael
full_name: Maseda, Michael
last_name: Maseda
- first_name: Themiya
full_name: Nanayakkara, Themiya
last_name: Nanayakkara
citation:
ama: 'Matthee JJ, Pezzulli G, Mackenzie R, et al. The nature of CR7 revealed with
MUSE: A young starburst powering extended Ly α emission at z = 6.6. Monthly
Notices of the Royal Astronomical Society. 2020;498(2):3043-3059. doi:10.1093/mnras/staa2550'
apa: 'Matthee, J. J., Pezzulli, G., Mackenzie, R., Cantalupo, S., Kusakabe, H.,
Leclercq, F., … Nanayakkara, T. (2020). The nature of CR7 revealed with MUSE:
A young starburst powering extended Ly α emission at z = 6.6. Monthly Notices
of the Royal Astronomical Society. Oxford University Press. https://doi.org/10.1093/mnras/staa2550'
chicago: 'Matthee, Jorryt J, Gabriele Pezzulli, Ruari Mackenzie, Sebastiano Cantalupo,
Haruka Kusakabe, Floriane Leclercq, David Sobral, et al. “The Nature of CR7 Revealed
with MUSE: A Young Starburst Powering Extended Ly α Emission at z = 6.6.” Monthly
Notices of the Royal Astronomical Society. Oxford University Press, 2020.
https://doi.org/10.1093/mnras/staa2550.'
ieee: 'J. J. Matthee et al., “The nature of CR7 revealed with MUSE: A young
starburst powering extended Ly α emission at z = 6.6,” Monthly Notices of the
Royal Astronomical Society, vol. 498, no. 2. Oxford University Press, pp.
3043–3059, 2020.'
ista: 'Matthee JJ, Pezzulli G, Mackenzie R, Cantalupo S, Kusakabe H, Leclercq F,
Sobral D, Richard J, Wisotzki L, Lilly S, Boogaard L, Marino R, Maseda M, Nanayakkara
T. 2020. The nature of CR7 revealed with MUSE: A young starburst powering extended
Ly α emission at z = 6.6. Monthly Notices of the Royal Astronomical Society. 498(2),
3043–3059.'
mla: 'Matthee, Jorryt J., et al. “The Nature of CR7 Revealed with MUSE: A Young
Starburst Powering Extended Ly α Emission at z = 6.6.” Monthly Notices of the
Royal Astronomical Society, vol. 498, no. 2, Oxford University Press, 2020,
pp. 3043–59, doi:10.1093/mnras/staa2550.'
short: J.J. Matthee, G. Pezzulli, R. Mackenzie, S. Cantalupo, H. Kusakabe, F. Leclercq,
D. Sobral, J. Richard, L. Wisotzki, S. Lilly, L. Boogaard, R. Marino, M. Maseda,
T. Nanayakkara, Monthly Notices of the Royal Astronomical Society 498 (2020) 3043–3059.
date_created: 2022-07-07T10:36:01Z
date_published: 2020-10-01T00:00:00Z
date_updated: 2024-10-14T11:33:21Z
day: '01'
doi: 10.1093/mnras/staa2550
extern: '1'
external_id:
arxiv:
- '2008.01731'
intvolume: ' 498'
issue: '2'
keyword:
- Space and Planetary Science
- Astronomy and Astrophysics
- 'galaxies: evolution'
- 'galaxies: high-redshift'
- dark ages
- reionization
- first stars
- 'cosmology: observations'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/2008.01731
month: '10'
oa: 1
oa_version: Preprint
page: 3043-3059
publication: Monthly Notices of the Royal Astronomical Society
publication_identifier:
eissn:
- 1365-2966
issn:
- 0035-8711
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'The nature of CR7 revealed with MUSE: A young starburst powering extended
Ly α emission at z = 6.6'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 498
year: '2020'
...
---
_id: '11530'
abstract:
- lang: eng
text: A prediction of the classic active galactic nucleus (AGN) unification model
is the presence of ionization cones with different orientations depending on the
AGN type. Confirmations of this model exist for present times, but it is less
clear in the early Universe. Here, we use the morphology of giant Ly α nebulae
around AGNs at redshift z ∼ 3 to probe AGN emission and therefore the validity
of the AGN unification model at this redshift. We compare the spatial morphology
of 19 nebulae previously found around type I AGNs with a new sample of four Ly α
nebulae detected around type II AGNs. Using two independent techniques, we find
that nebulae around type II AGNs are more asymmetric than around type I, at least
at radial distances r > 30 physical kpc (pkpc) from the ionizing source. We conclude
that the type I and type II AGNs in our sample show evidence of different surrounding
ionizing geometries. This suggests that the classical AGN unification model is
also valid for high-redshift sources. Finally, we discuss how the lack of asymmetry
in the inner parts (r ≲ 30 pkpc) and the associated high values of the He II to
Ly α ratios in these regions could indicate additional sources of (hard) ionizing
radiation originating within or in proximity of the AGN host galaxies. This work
demonstrates that the morphologies of giant Ly α nebulae can be used to understand
and study the geometry of high-redshift AGNs on circumnuclear scales and it lays
the foundation for future studies using much larger statistical samples.
acknowledgement: SC and GP gratefully acknowledge support from Swiss National Science
Foundation grant PP00P2 163824. MK acknowledges support by DLR500R1904.
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: J S
full_name: den Brok, J S
last_name: den Brok
- first_name: S
full_name: Cantalupo, S
last_name: Cantalupo
- first_name: R
full_name: Mackenzie, R
last_name: Mackenzie
- first_name: R A
full_name: Marino, R A
last_name: Marino
- first_name: G
full_name: Pezzulli, G
last_name: Pezzulli
- first_name: Jorryt J
full_name: Matthee, Jorryt J
id: 7439a258-f3c0-11ec-9501-9df22fe06720
last_name: Matthee
orcid: 0000-0003-2871-127X
- first_name: S D
full_name: Johnson, S D
last_name: Johnson
- first_name: M
full_name: Krumpe, M
last_name: Krumpe
- first_name: T
full_name: Urrutia, T
last_name: Urrutia
- first_name: W
full_name: Kollatschny, W
last_name: Kollatschny
citation:
ama: den Brok JS, Cantalupo S, Mackenzie R, et al. Probing the AGN unification model
at redshift z ∼ 3 with MUSE observations of giant Lyα nebulae. Monthly Notices
of the Royal Astronomical Society. 2020;495(2):1874-1887. doi:10.1093/mnras/staa1269
apa: den Brok, J. S., Cantalupo, S., Mackenzie, R., Marino, R. A., Pezzulli, G.,
Matthee, J. J., … Kollatschny, W. (2020). Probing the AGN unification model at
redshift z ∼ 3 with MUSE observations of giant Lyα nebulae. Monthly Notices
of the Royal Astronomical Society. Oxford University Press. https://doi.org/10.1093/mnras/staa1269
chicago: den Brok, J S, S Cantalupo, R Mackenzie, R A Marino, G Pezzulli, Jorryt
J Matthee, S D Johnson, M Krumpe, T Urrutia, and W Kollatschny. “Probing the AGN
Unification Model at Redshift z ∼ 3 with MUSE Observations of Giant Lyα Nebulae.”
Monthly Notices of the Royal Astronomical Society. Oxford University Press,
2020. https://doi.org/10.1093/mnras/staa1269.
ieee: J. S. den Brok et al., “Probing the AGN unification model at redshift
z ∼ 3 with MUSE observations of giant Lyα nebulae,” Monthly Notices of the
Royal Astronomical Society, vol. 495, no. 2. Oxford University Press, pp.
1874–1887, 2020.
ista: den Brok JS, Cantalupo S, Mackenzie R, Marino RA, Pezzulli G, Matthee JJ,
Johnson SD, Krumpe M, Urrutia T, Kollatschny W. 2020. Probing the AGN unification
model at redshift z ∼ 3 with MUSE observations of giant Lyα nebulae. Monthly Notices
of the Royal Astronomical Society. 495(2), 1874–1887.
mla: den Brok, J. S., et al. “Probing the AGN Unification Model at Redshift z ∼
3 with MUSE Observations of Giant Lyα Nebulae.” Monthly Notices of the Royal
Astronomical Society, vol. 495, no. 2, Oxford University Press, 2020, pp.
1874–87, doi:10.1093/mnras/staa1269.
short: J.S. den Brok, S. Cantalupo, R. Mackenzie, R.A. Marino, G. Pezzulli, J.J.
Matthee, S.D. Johnson, M. Krumpe, T. Urrutia, W. Kollatschny, Monthly Notices
of the Royal Astronomical Society 495 (2020) 1874–1887.
date_created: 2022-07-07T10:40:17Z
date_published: 2020-06-01T00:00:00Z
date_updated: 2022-08-18T11:17:47Z
day: '01'
doi: 10.1093/mnras/staa1269
extern: '1'
external_id:
arxiv:
- '2005.01732'
intvolume: ' 495'
issue: '2'
keyword:
- Space and Planetary Science
- Astronomy and Astrophysics
- 'galaxies: active'
- 'galaxies: high-redshift'
- intergalactic medium
- 'quasars: emission lines'
- 'quasars: general'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/2005.01732
month: '06'
oa: 1
oa_version: Preprint
page: 1874-1887
publication: Monthly Notices of the Royal Astronomical Society
publication_identifier:
eissn:
- 1365-2966
issn:
- 0035-8711
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: Probing the AGN unification model at redshift z ∼ 3 with MUSE observations
of giant Lyα nebulae
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 495
year: '2020'
...
---
_id: '11531'
abstract:
- lang: eng
text: While low-luminosity galaxies dominate number counts at all redshifts, their
contribution to cosmic reionization is poorly understood due to a lack of knowledge
of their physical properties. We isolate a sample of 35 z ≈ 4–5 continuum-faint
Lyman-α emitters from deep VLT/MUSE spectroscopy and directly measure their H α
emission using stacked Spitzer/IRAC Ch. 1 photometry. Based on Hubble Space Telescope
imaging, we determine that the average UV continuum magnitude is fainter than
−16 (≈ 0.01 L⋆), implying a median Lyman-α equivalent width of 259 Å. By combining
the H α measurement with the UV magnitude, we determine the ionizing photon production
efficiency, ξion, a first for such faint galaxies. The measurement of log10 (ξion
[Hz erg−1]) = 26.28 (+0.28−0.40) is in excess of literature measurements of
both continuum- and emission line-selected samples, implying a more efficient
production of ionizing photons in these lower luminosity, Lyman-α-selected systems.
We conclude that this elevated efficiency can be explained by stellar populations
with metallicities between 4 × 10−4 and 0.008, with light-weighted ages less than
3 Myr.
acknowledgement: 'We would like to thank the anonymous referee for a thoughtful report
and suggestions that have improved this manuscript. We are also grateful to everyone
involved in the Spitzer Space Telescope mission and everyone at the Spitzer Science
Center: we are truly fortunate to have been able to use data from this facility.
J. B. acknowledges support by FCT/MCTES through national funds by this grant UID/FIS/04434/2019
and through the Investigador FCT contract no. IF/01654/2014/CP1215/CT0003. S. C.
gratefully acknowledges support from Swiss National Science Foundation grant PP00P2
163824. We would also like to thank Mauro Stefanon for his assistance with de-blending
the IRAC photometry, Pieter van Dokkum for a number of useful suggestions, and Daniel
Schaerer for information regarding the stellar population models. This study is
based on observations made with ESO telescopes at the La Silla Paranal Observatory
under programs IDs 094.A-2089(B), 095.A0010(A), 096.A-0045(A), and 096.A-0045(B).'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Michael V
full_name: Maseda, Michael V
last_name: Maseda
- first_name: Roland
full_name: Bacon, Roland
last_name: Bacon
- first_name: Daniel
full_name: Lam, Daniel
last_name: Lam
- first_name: Jorryt J
full_name: Matthee, Jorryt J
id: 7439a258-f3c0-11ec-9501-9df22fe06720
last_name: Matthee
orcid: 0000-0003-2871-127X
- first_name: Jarle
full_name: Brinchmann, Jarle
last_name: Brinchmann
- first_name: Joop
full_name: Schaye, Joop
last_name: Schaye
- first_name: Ivo
full_name: Labbe, Ivo
last_name: Labbe
- first_name: Kasper B
full_name: Schmidt, Kasper B
last_name: Schmidt
- first_name: Leindert
full_name: Boogaard, Leindert
last_name: Boogaard
- first_name: Rychard
full_name: Bouwens, Rychard
last_name: Bouwens
- first_name: Sebastiano
full_name: Cantalupo, Sebastiano
last_name: Cantalupo
- first_name: Marijn
full_name: Franx, Marijn
last_name: Franx
- first_name: Takuya
full_name: Hashimoto, Takuya
last_name: Hashimoto
- first_name: Hanae
full_name: Inami, Hanae
last_name: Inami
- first_name: Haruka
full_name: Kusakabe, Haruka
last_name: Kusakabe
- first_name: Guillaume
full_name: Mahler, Guillaume
last_name: Mahler
- first_name: Themiya
full_name: Nanayakkara, Themiya
last_name: Nanayakkara
- first_name: Johan
full_name: Richard, Johan
last_name: Richard
- first_name: Lutz
full_name: Wisotzki, Lutz
last_name: Wisotzki
citation:
ama: Maseda MV, Bacon R, Lam D, et al. Elevated ionizing photon production efficiency
in faint high-equivalent-width Lyman-α emitters. Monthly Notices of the Royal
Astronomical Society. 2020;493(4):5120-5130. doi:10.1093/mnras/staa622
apa: Maseda, M. V., Bacon, R., Lam, D., Matthee, J. J., Brinchmann, J., Schaye,
J., … Wisotzki, L. (2020). Elevated ionizing photon production efficiency in faint
high-equivalent-width Lyman-α emitters. Monthly Notices of the Royal Astronomical
Society. Oxford University Press. https://doi.org/10.1093/mnras/staa622
chicago: Maseda, Michael V, Roland Bacon, Daniel Lam, Jorryt J Matthee, Jarle Brinchmann,
Joop Schaye, Ivo Labbe, et al. “Elevated Ionizing Photon Production Efficiency
in Faint High-Equivalent-Width Lyman-α Emitters.” Monthly Notices of the Royal
Astronomical Society. Oxford University Press, 2020. https://doi.org/10.1093/mnras/staa622.
ieee: M. V. Maseda et al., “Elevated ionizing photon production efficiency
in faint high-equivalent-width Lyman-α emitters,” Monthly Notices of the Royal
Astronomical Society, vol. 493, no. 4. Oxford University Press, pp. 5120–5130,
2020.
ista: Maseda MV, Bacon R, Lam D, Matthee JJ, Brinchmann J, Schaye J, Labbe I, Schmidt
KB, Boogaard L, Bouwens R, Cantalupo S, Franx M, Hashimoto T, Inami H, Kusakabe
H, Mahler G, Nanayakkara T, Richard J, Wisotzki L. 2020. Elevated ionizing photon
production efficiency in faint high-equivalent-width Lyman-α emitters. Monthly
Notices of the Royal Astronomical Society. 493(4), 5120–5130.
mla: Maseda, Michael V., et al. “Elevated Ionizing Photon Production Efficiency
in Faint High-Equivalent-Width Lyman-α Emitters.” Monthly Notices of the Royal
Astronomical Society, vol. 493, no. 4, Oxford University Press, 2020, pp.
5120–30, doi:10.1093/mnras/staa622.
short: M.V. Maseda, R. Bacon, D. Lam, J.J. Matthee, J. Brinchmann, J. Schaye, I.
Labbe, K.B. Schmidt, L. Boogaard, R. Bouwens, S. Cantalupo, M. Franx, T. Hashimoto,
H. Inami, H. Kusakabe, G. Mahler, T. Nanayakkara, J. Richard, L. Wisotzki, Monthly
Notices of the Royal Astronomical Society 493 (2020) 5120–5130.
date_created: 2022-07-07T10:46:41Z
date_published: 2020-04-01T00:00:00Z
date_updated: 2022-08-18T11:23:27Z
day: '01'
doi: 10.1093/mnras/staa622
extern: '1'
external_id:
arxiv:
- '2002.11117'
intvolume: ' 493'
issue: '4'
keyword:
- Space and Planetary Science
- Astronomy and Astrophysics
- 'Galaxies: evolution'
- 'Galaxies: high-redshift'
- 'Galaxies: ISM'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1093/mnras/staa622
month: '04'
oa: 1
oa_version: Published Version
page: 5120-5130
publication: Monthly Notices of the Royal Astronomical Society
publication_identifier:
eissn:
- 1365-2966
issn:
- 0035-8711
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: Elevated ionizing photon production efficiency in faint high-equivalent-width
Lyman-α emitters
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 493
year: '2020'
...
---
_id: '11533'
abstract:
- lang: eng
text: We explore deep rest-frame UV to FIR data in the COSMOS field to measure the
individual spectral energy distributions (SED) of the ∼4000 SC4K (Sobral et al.)
Lyman α (Ly α) emitters (LAEs) at z ∼ 2–6. We find typical stellar masses of 109.3
± 0.6 M⊙ and star formation rates (SFR) of SFRSED=4.4+10.5−2.4 M⊙ yr−1 and SFRLyα=5.9+6.3−2.6 M⊙ yr−1,
combined with very blue UV slopes of β=−2.1+0.5−0.4, but with significant variations
within the population. MUV and β are correlated in a similar way to UV-selected
sources, but LAEs are consistently bluer. This suggests that LAEs are the youngest
and/or most dust-poor subset of the UV-selected population. We also study the
Ly α rest-frame equivalent width (EW0) and find 45 ‘extreme’ LAEs with EW0 > 240 Å
(3σ), implying a low number density of (7 ± 1) × 10−7 Mpc−3. Overall, we measure
little to no evolution of the Ly α EW0 and scale length parameter (w0), which
are consistently high (EW0=140+280−70 Å, w0=129+11−11 Å) from z ∼ 6 to z ∼ 2 and
below. However, w0 is anticorrelated with MUV and stellar mass. Our results imply
that sources selected as LAEs have a high Ly α escape fraction (fesc,Ly α) irrespective
of cosmic time, but fesc,Ly α is still higher for UV-fainter and lower mass LAEs.
The least massive LAEs (<109.5 M⊙) are typically located above the star formation
‘main sequence’ (MS), but the offset from the MS decreases towards z ∼ 6 and towards
1010 M⊙. Our results imply a lack of evolution in the properties of LAEs across
time and reveals the increasing overlap in properties of LAEs and UV-continuum
selected galaxies as typical star-forming galaxies at high redshift effectively
become LAEs.
acknowledgement: We thank the anonymous referee for the valuable feedback that significantly
improved the quality and clarity of this paper. SS and JC acknowledge studentships
from Lancaster University. APA acknowledges support from Fundação para a Ciência
e a Tecnologia through the project PTDC/FISAST/31546/2017. The authors would like
to thank Ali Khostovan, Sara Perez Sanchez, Alex Bennett and Tom Rose for contributions
and discussions in the early stages of this work. Based on data products from observations
made with ESO Telescopes at the La Silla Paranal Observatory under ESO programme
ID 179.A-2005 and on data products produced by CALET and the Cambridge Astronomy
Survey Unit on behalf of the UltraVISTA consortium. Finally, the authors acknowledge
the unique value of the publicly available analysis software TOPCAT (Taylor 2005)
and publicly available programming language Python, including the numpy, pyfits,
matplotlib, scipy and astropy (Astropy Collaboration et al. 2013) packages. This
work is based on the public SC4K sample of LAEs (Sobral et al. 2018a) and we release
the full catalogue with all the photometry and properties derived in this paper,
in electronic format, along with the relevant tables.
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: S
full_name: Santos, S
last_name: Santos
- first_name: D
full_name: Sobral, D
last_name: Sobral
- first_name: Jorryt J
full_name: Matthee, Jorryt J
id: 7439a258-f3c0-11ec-9501-9df22fe06720
last_name: Matthee
orcid: 0000-0003-2871-127X
- first_name: J
full_name: Calhau, J
last_name: Calhau
- first_name: E
full_name: da Cunha, E
last_name: da Cunha
- first_name: B
full_name: Ribeiro, B
last_name: Ribeiro
- first_name: A
full_name: Paulino-Afonso, A
last_name: Paulino-Afonso
- first_name: P
full_name: Arrabal Haro, P
last_name: Arrabal Haro
- first_name: J
full_name: Butterworth, J
last_name: Butterworth
citation:
ama: Santos S, Sobral D, Matthee JJ, et al. The evolution of rest-frame UV properties,
Ly α EWs, and the SFR–stellar mass relation at z ∼ 2–6 for SC4K LAEs. Monthly
Notices of the Royal Astronomical Society. 2020;493(1):141-160. doi:10.1093/mnras/staa093
apa: Santos, S., Sobral, D., Matthee, J. J., Calhau, J., da Cunha, E., Ribeiro,
B., … Butterworth, J. (2020). The evolution of rest-frame UV properties, Ly α
EWs, and the SFR–stellar mass relation at z ∼ 2–6 for SC4K LAEs. Monthly Notices
of the Royal Astronomical Society. Oxford University Press. https://doi.org/10.1093/mnras/staa093
chicago: Santos, S, D Sobral, Jorryt J Matthee, J Calhau, E da Cunha, B Ribeiro,
A Paulino-Afonso, P Arrabal Haro, and J Butterworth. “The Evolution of Rest-Frame
UV Properties, Ly α EWs, and the SFR–Stellar Mass Relation at z ∼ 2–6 for SC4K
LAEs.” Monthly Notices of the Royal Astronomical Society. Oxford University
Press, 2020. https://doi.org/10.1093/mnras/staa093.
ieee: S. Santos et al., “The evolution of rest-frame UV properties, Ly α
EWs, and the SFR–stellar mass relation at z ∼ 2–6 for SC4K LAEs,” Monthly Notices
of the Royal Astronomical Society, vol. 493, no. 1. Oxford University Press,
pp. 141–160, 2020.
ista: Santos S, Sobral D, Matthee JJ, Calhau J, da Cunha E, Ribeiro B, Paulino-Afonso
A, Arrabal Haro P, Butterworth J. 2020. The evolution of rest-frame UV properties,
Ly α EWs, and the SFR–stellar mass relation at z ∼ 2–6 for SC4K LAEs. Monthly
Notices of the Royal Astronomical Society. 493(1), 141–160.
mla: Santos, S., et al. “The Evolution of Rest-Frame UV Properties, Ly α EWs, and
the SFR–Stellar Mass Relation at z ∼ 2–6 for SC4K LAEs.” Monthly Notices of
the Royal Astronomical Society, vol. 493, no. 1, Oxford University Press,
2020, pp. 141–60, doi:10.1093/mnras/staa093.
short: S. Santos, D. Sobral, J.J. Matthee, J. Calhau, E. da Cunha, B. Ribeiro, A.
Paulino-Afonso, P. Arrabal Haro, J. Butterworth, Monthly Notices of the Royal
Astronomical Society 493 (2020) 141–160.
date_created: 2022-07-07T12:05:23Z
date_published: 2020-03-01T00:00:00Z
date_updated: 2022-08-18T11:27:43Z
day: '01'
doi: 10.1093/mnras/staa093
extern: '1'
external_id:
arxiv:
- '1910.02959'
intvolume: ' 493'
issue: '1'
keyword:
- Space and Planetary Science
- Astronomy and Astrophysics
- 'galaxies: evolution'
- 'galaxies: formation'
- 'galaxies: high-redshift'
- 'galaxies: star formation'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1910.02959
month: '03'
oa: 1
oa_version: Preprint
page: 141-160
publication: Monthly Notices of the Royal Astronomical Society
publication_identifier:
eissn:
- 1365-2966
issn:
- 0035-8711
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: The evolution of rest-frame UV properties, Ly α EWs, and the SFR–stellar mass
relation at z ∼ 2–6 for SC4K LAEs
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 493
year: '2020'
...
---
_id: '11534'
abstract:
- lang: eng
text: The observed properties of the Lyman-α (Ly α) emission line are a powerful
probe of neutral gas in and around galaxies. We present spatially resolved Ly α
spectroscopy with VLT/MUSE targeting VR7, a UV-luminous galaxy at z = 6.532 with
moderate Ly α equivalent width (EW0 ≈ 38 Å). These data are combined with deep
resolved [CII]158μm spectroscopy obtained with ALMA and UV imaging from HST and
we also detect UV continuum with MUSE. Ly α emission is clearly detected with
S/N ≈ 40 and FWHM of 374 km s−1. Ly α and [C II] are similarly extended beyond
the UV, with effective radius reff = 2.1 ± 0.2 kpc for a single exponential model
or reff,Lyα,halo=3.45+1.08−0.87 kpc when measured jointly with the UV continuum.
The Ly α profile is broader and redshifted with respect to the [C II] line (by
213 km s−1), but there are spatial variations that are qualitatively similar in
both lines and coincide with resolved UV components. This suggests that the emission
originates from two components with plausibly different H I column densities.
We place VR7 in the context of other galaxies at similar and lower redshift. The
Ly α halo scale length is similar at different redshifts and velocity shifts with
respect to the systemic are typically smaller. Overall, we find little indications
of a more neutral vicinity at higher redshift. This means that the local (∼10 kpc)
neutral gas conditions that determine the observed Ly α properties in VR7 resemble
the conditions in post-reionization galaxies.
acknowledgement: 'We thank the referee for their suggestions and constructive comments
that helped to improve the presentation of our results. Based on observations obtained
with the Very Large Telescope, program 99.A-0462. Based on observations made with
the NASA/ESA Hubble Space Telescope, obtained at the Space Telescope Science Institute,
which is operated by the Association of Universities for Research in Astronomy,
Inc., under NASA contract NAS 5-26555. These observations are associated with program
#14699. This paper makes use of the following ALMA data: ADS/JAO.ALMA#2017.1.01451.S.
ALMA is a partnership of ESO (representing its member states), NSF (USA), and NINS
(Japan), together with NRC (Canada) and NSC and ASIAA (Taiwan) and KASI (Republic
of Korea), in cooperation with the Republic of Chile. The Joint ALMA Observatory
is operated by ESO, AUI/NRAO, and NAOJ. MG acknowledges support from NASA grant
NNX17AK58G. GP and SC gratefully acknowledge support from Swiss National Science
Foundation grant PP00P2 163824. BD acknowledges financial support from the National
Science Foundation, grant number 1716907. We have benefited greatly from the public
available programming language PYTHON, including the NUMPY, MATPLOTLIB, SCIPY (Jones
et al. 2001; Hunter 2007; van der Walt, Colbert & Varoquaux 2011) and ASTROPY (Astropy
Collaboration 2013) packages, the astronomical imaging tools SEXTRACTOR, SWARP,
and SCAMP (Bertin & Arnouts 1996; Bertin 2006, 2010) and the TOPCAT analysis tool
(Taylor 2013).'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Jorryt J
full_name: Matthee, Jorryt J
id: 7439a258-f3c0-11ec-9501-9df22fe06720
last_name: Matthee
orcid: 0000-0003-2871-127X
- first_name: David
full_name: Sobral, David
last_name: Sobral
- first_name: Max
full_name: Gronke, Max
last_name: Gronke
- first_name: Gabriele
full_name: Pezzulli, Gabriele
last_name: Pezzulli
- first_name: Sebastiano
full_name: Cantalupo, Sebastiano
last_name: Cantalupo
- first_name: Huub
full_name: Röttgering, Huub
last_name: Röttgering
- first_name: Behnam
full_name: Darvish, Behnam
last_name: Darvish
- first_name: Sérgio
full_name: Santos, Sérgio
last_name: Santos
citation:
ama: Matthee JJ, Sobral D, Gronke M, et al. Resolved Lyman-α properties of a luminous
Lyman-break galaxy in a large ionized bubble at z = 6.53 . Monthly Notices
of the Royal Astronomical Society. 2020;492(2):1778-1790. doi:10.1093/mnras/stz3554
apa: Matthee, J. J., Sobral, D., Gronke, M., Pezzulli, G., Cantalupo, S., Röttgering,
H., … Santos, S. (2020). Resolved Lyman-α properties of a luminous Lyman-break
galaxy in a large ionized bubble at z = 6.53 . Monthly Notices of the Royal
Astronomical Society. Oxford University Press. https://doi.org/10.1093/mnras/stz3554
chicago: Matthee, Jorryt J, David Sobral, Max Gronke, Gabriele Pezzulli, Sebastiano
Cantalupo, Huub Röttgering, Behnam Darvish, and Sérgio Santos. “Resolved Lyman-α
Properties of a Luminous Lyman-Break Galaxy in a Large Ionized Bubble at z = 6.53
.” Monthly Notices of the Royal Astronomical Society. Oxford University
Press, 2020. https://doi.org/10.1093/mnras/stz3554.
ieee: J. J. Matthee et al., “Resolved Lyman-α properties of a luminous Lyman-break
galaxy in a large ionized bubble at z = 6.53 ,” Monthly Notices of the Royal
Astronomical Society, vol. 492, no. 2. Oxford University Press, pp. 1778–1790,
2020.
ista: Matthee JJ, Sobral D, Gronke M, Pezzulli G, Cantalupo S, Röttgering H, Darvish
B, Santos S. 2020. Resolved Lyman-α properties of a luminous Lyman-break galaxy
in a large ionized bubble at z = 6.53 . Monthly Notices of the Royal Astronomical
Society. 492(2), 1778–1790.
mla: Matthee, Jorryt J., et al. “Resolved Lyman-α Properties of a Luminous Lyman-Break
Galaxy in a Large Ionized Bubble at z = 6.53 .” Monthly Notices of the Royal
Astronomical Society, vol. 492, no. 2, Oxford University Press, 2020, pp.
1778–90, doi:10.1093/mnras/stz3554.
short: J.J. Matthee, D. Sobral, M. Gronke, G. Pezzulli, S. Cantalupo, H. Röttgering,
B. Darvish, S. Santos, Monthly Notices of the Royal Astronomical Society 492 (2020)
1778–1790.
date_created: 2022-07-07T12:21:36Z
date_published: 2020-02-01T00:00:00Z
date_updated: 2024-10-14T11:33:34Z
day: '01'
doi: 10.1093/mnras/stz3554
extern: '1'
external_id:
arxiv:
- '1909.06376'
intvolume: ' 492'
issue: '2'
keyword:
- Space and Planetary Science
- Astronomy and Astrophysics
- 'galaxies: evolution'
- 'galaxies: high-redshift'
- dark ages
- reionization
- first stars
- 'cosmology: observations'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1909.06376
month: '02'
oa: 1
oa_version: Preprint
page: 1778-1790
publication: Monthly Notices of the Royal Astronomical Society
publication_identifier:
eissn:
- 1365-2966
issn:
- 0035-8711
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Resolved Lyman-α properties of a luminous Lyman-break galaxy in a large ionized
bubble at z = 6.53 '
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 492
year: '2020'
...
---
_id: '11539'
abstract:
- lang: eng
text: 'Despite recent progress in understanding Ly α emitters (LAEs), relatively
little is known regarding their typical black hole activity across cosmic time.
Here, we study the X-ray and radio properties of ∼4000 LAEs at 2.2 < z < 6 from
the SC4K survey in the COSMOS field. We detect 254 (6.8per cent±0.4per cent)
LAEs individually in the X-rays (S/N > 3) with an average luminosity of 1044.31±0.01ergs−1
and average black hole accretion rate (BHAR) of 0.72±0.01 M⊙ yr−1, consistent
with moderate to high accreting active galactic neuclei (AGNs). We detect 120
sources in deep radio data (radio AGN fraction of 3.2per cent±0.3per cent). The
global AGN fraction (8.6per cent±0.4per cent) rises with Ly α luminosity and
declines with increasing redshift. For X-ray-detected LAEs, Ly α luminosities
correlate with the BHARs, suggesting that Ly α luminosity becomes a BHAR indicator.
Most LAEs (93.1per cent±0.6per cent) at 2 < z < 6 have no detectable X-ray emission
(BHARs < 0.017 M⊙ yr−1). The median star formation rate (SFR) of star-forming
LAEs from Ly α and radio luminosities is 7.6+6.6−2.8 M⊙ yr−1. The black hole to
galaxy growth ratio (BHAR/SFR) for LAEs is <0.0022, consistent with typical star-forming
galaxies and the local BHAR/SFR relation. We conclude that LAEs at 2 < z < 6 include
two different populations: an AGN population, where Ly α luminosity traces BHAR,
and another with low SFRs which remain undetected in even the deepest X-ray stacks
but is detected in the radio stacks.'
acknowledgement: JM acknowledges the support of a Huygens PhD fellowship from Leiden
University. We thank Camila Correa for help analysing snipshot merger trees. We
thank the anonymous referee for constructive comments. We also thank Jarle Brinchmann,
Rob Crain, Antonios Katsianis, Paola Popesso, and David Sobral for discussions and
suggestions. We also thank the participants of the Lorentz Center workshop ‘A Decade
of the Star-Forming Main Sequence’ held on 2017 September 4–8, for discussions and
ideas. We have benefited from the public available programming language PYTHON,
including the NUMPY, MATPLOTLIB, and SCIPY (Hunter 2007) packages and the TOPCAT
analysis tool (Taylor 2013).
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: João
full_name: Calhau, João
last_name: Calhau
- first_name: David
full_name: Sobral, David
last_name: Sobral
- first_name: Sérgio
full_name: Santos, Sérgio
last_name: Santos
- first_name: Jorryt J
full_name: Matthee, Jorryt J
id: 7439a258-f3c0-11ec-9501-9df22fe06720
last_name: Matthee
orcid: 0000-0003-2871-127X
- first_name: Ana
full_name: Paulino-Afonso, Ana
last_name: Paulino-Afonso
- first_name: Andra
full_name: Stroe, Andra
last_name: Stroe
- first_name: Brooke
full_name: Simmons, Brooke
last_name: Simmons
- first_name: Cassandra
full_name: Barlow-Hall, Cassandra
last_name: Barlow-Hall
- first_name: Benjamin
full_name: Adams, Benjamin
last_name: Adams
citation:
ama: 'Calhau J, Sobral D, Santos S, et al. The X-ray and radio activity of typical
and luminous Ly α emitters from z ∼ 2 to z ∼ 6: Evidence for a diverse, evolving
population. Monthly Notices of the Royal Astronomical Society. 2020;493(3):3341-3362.
doi:10.1093/mnras/staa476'
apa: 'Calhau, J., Sobral, D., Santos, S., Matthee, J. J., Paulino-Afonso, A., Stroe,
A., … Adams, B. (2020). The X-ray and radio activity of typical and luminous Ly α
emitters from z ∼ 2 to z ∼ 6: Evidence for a diverse, evolving population. Monthly
Notices of the Royal Astronomical Society. Oxford University Press. https://doi.org/10.1093/mnras/staa476'
chicago: 'Calhau, João, David Sobral, Sérgio Santos, Jorryt J Matthee, Ana Paulino-Afonso,
Andra Stroe, Brooke Simmons, Cassandra Barlow-Hall, and Benjamin Adams. “The X-Ray
and Radio Activity of Typical and Luminous Ly α Emitters from z ∼ 2 to z ∼ 6:
Evidence for a Diverse, Evolving Population.” Monthly Notices of the Royal
Astronomical Society. Oxford University Press, 2020. https://doi.org/10.1093/mnras/staa476.'
ieee: 'J. Calhau et al., “The X-ray and radio activity of typical and luminous
Ly α emitters from z ∼ 2 to z ∼ 6: Evidence for a diverse, evolving population,”
Monthly Notices of the Royal Astronomical Society, vol. 493, no. 3. Oxford
University Press, pp. 3341–3362, 2020.'
ista: 'Calhau J, Sobral D, Santos S, Matthee JJ, Paulino-Afonso A, Stroe A, Simmons
B, Barlow-Hall C, Adams B. 2020. The X-ray and radio activity of typical and luminous
Ly α emitters from z ∼ 2 to z ∼ 6: Evidence for a diverse, evolving population.
Monthly Notices of the Royal Astronomical Society. 493(3), 3341–3362.'
mla: 'Calhau, João, et al. “The X-Ray and Radio Activity of Typical and Luminous
Ly α Emitters from z ∼ 2 to z ∼ 6: Evidence for a Diverse, Evolving Population.”
Monthly Notices of the Royal Astronomical Society, vol. 493, no. 3, Oxford
University Press, 2020, pp. 3341–62, doi:10.1093/mnras/staa476.'
short: J. Calhau, D. Sobral, S. Santos, J.J. Matthee, A. Paulino-Afonso, A. Stroe,
B. Simmons, C. Barlow-Hall, B. Adams, Monthly Notices of the Royal Astronomical
Society 493 (2020) 3341–3362.
date_created: 2022-07-08T07:34:10Z
date_published: 2020-04-01T00:00:00Z
date_updated: 2022-08-18T11:25:31Z
day: '01'
doi: 10.1093/mnras/staa476
extern: '1'
external_id:
arxiv:
- '1909.11672'
intvolume: ' 493'
issue: '3'
keyword:
- Space and Planetary Science
- Astronomy and Astrophysics
- 'galaxies: active'
- 'galaxies: evolution'
- 'galaxies: high-redshift'
- 'quasars: supermassive black holes'
- 'galaxies: star formation'
- 'cosmology: observations'
- 'X-rays: galaxies'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1909.11672
month: '04'
oa: 1
oa_version: Preprint
page: 3341-3362
publication: Monthly Notices of the Royal Astronomical Society
publication_identifier:
eissn:
- 1365-2966
issn:
- 0035-8711
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'The X-ray and radio activity of typical and luminous Ly α emitters from z
∼ 2 to z ∼ 6: Evidence for a diverse, evolving population'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 493
year: '2020'
...
---
_id: '11586'
abstract:
- lang: eng
text: Distant luminous Lyman-α emitters are excellent targets for detailed observations
of galaxies in the epoch of reionisation. Spatially resolved observations of these
galaxies allow us to simultaneously probe the emission from young stars, partially
ionised gas in the interstellar medium and to constrain the properties of the
surrounding hydrogen in the circumgalactic medium. We review recent results from
(spectroscopic) follow-up studies of the rest-frame UV, Lyman-α and [CII] emission
in luminous galaxies observed ∼500 Myr after the Big Bang with ALMA, HST/WFC3
and VLT/X-SHOOTER. These galaxies likely reside in early ionised bubbles and are
complex systems, consisting of multiple well separated and resolved components
where traces of metals are already present.
article_processing_charge: No
arxiv: 1
author:
- first_name: Jorryt J
full_name: Matthee, Jorryt J
id: 7439a258-f3c0-11ec-9501-9df22fe06720
last_name: Matthee
orcid: 0000-0003-2871-127X
- first_name: David
full_name: Sobral, David
last_name: Sobral
citation:
ama: 'Matthee JJ, Sobral D. Unveiling the most luminous Lyman-α emitters in the
epoch of reionisation. In: Proceedings of the International Astronomical Union.
Vol 15. Cambridge University Press; 2020:21-25. doi:10.1017/s1743921319009451'
apa: Matthee, J. J., & Sobral, D. (2020). Unveiling the most luminous Lyman-α
emitters in the epoch of reionisation. In Proceedings of the International
Astronomical Union (Vol. 15, pp. 21–25). Cambridge University Press. https://doi.org/10.1017/s1743921319009451
chicago: Matthee, Jorryt J, and David Sobral. “Unveiling the Most Luminous Lyman-α
Emitters in the Epoch of Reionisation.” In Proceedings of the International
Astronomical Union, 15:21–25. Cambridge University Press, 2020. https://doi.org/10.1017/s1743921319009451.
ieee: J. J. Matthee and D. Sobral, “Unveiling the most luminous Lyman-α emitters
in the epoch of reionisation,” in Proceedings of the International Astronomical
Union, 2020, vol. 15, no. S352, pp. 21–25.
ista: Matthee JJ, Sobral D. 2020. Unveiling the most luminous Lyman-α emitters in
the epoch of reionisation. Proceedings of the International Astronomical Union.
vol. 15, 21–25.
mla: Matthee, Jorryt J., and David Sobral. “Unveiling the Most Luminous Lyman-α
Emitters in the Epoch of Reionisation.” Proceedings of the International Astronomical
Union, vol. 15, no. S352, Cambridge University Press, 2020, pp. 21–25, doi:10.1017/s1743921319009451.
short: J.J. Matthee, D. Sobral, in:, Proceedings of the International Astronomical
Union, Cambridge University Press, 2020, pp. 21–25.
date_created: 2022-07-14T14:08:41Z
date_published: 2020-06-04T00:00:00Z
date_updated: 2024-10-14T11:38:21Z
day: '04'
doi: 10.1017/s1743921319009451
extern: '1'
external_id:
arxiv:
- '1911.04774'
intvolume: ' 15'
issue: S352
keyword:
- Astronomy and Astrophysics
- Space and Planetary Science
- 'galaxies: formation'
- 'galaxies: evolution'
- 'galaxies: high-redshift'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1911.04774
month: '06'
oa: 1
oa_version: Preprint
page: 21-25
publication: Proceedings of the International Astronomical Union
publication_identifier:
eissn:
- 1743-9221
issn:
- 1743-9213
publication_status: published
publisher: Cambridge University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: Unveiling the most luminous Lyman-α emitters in the epoch of reionisation
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 15
year: '2020'
...
---
_id: '11610'
abstract:
- lang: eng
text: Studies of Galactic structure and evolution have benefited enormously from
Gaia kinematic information, though additional, intrinsic stellar parameters like
age are required to best constrain Galactic models. Asteroseismology is the most
precise method of providing such information for field star populations en masse,
but existing samples for the most part have been limited to a few narrow fields
of view by the CoRoT and Kepler missions. In an effort to provide well-characterized
stellar parameters across a wide range in Galactic position, we present the second
data release of red giant asteroseismic parameters for the K2 Galactic Archaeology
Program (GAP). We provide ${\nu }_{\max }$ and ${\rm{\Delta }}\nu $ based on six
independent pipeline analyses; first-ascent red giant branch (RGB) and red clump
(RC) evolutionary state classifications from machine learning; and ready-to-use
radius and mass coefficients, κR and κM, which, when appropriately multiplied
by a solar-scaled effective temperature factor, yield physical stellar radii and
masses. In total, we report 4395 radius and mass coefficients, with typical uncertainties
of 3.3% (stat.) ± 1% (syst.) for κR and 7.7% (stat.) ± 2% (syst.) for κM among
RGB stars, and 5.0% (stat.) ± 1% (syst.) for κR and 10.5% (stat.) ± 2% (syst.)
for κM among RC stars. We verify that the sample is nearly complete—except for
a dearth of stars with ${\nu }_{\max }\lesssim 10\mbox{--}20\,\mu \mathrm{Hz}$—by
comparing to Galactic models and visual inspection. Our asteroseismic radii agree
with radii derived from Gaia Data Release 2 parallaxes to within 2.2% ± 0.3% for
RGB stars and 2.0% ± 0.6% for RC stars.
acknowledgement: "We thank the referee for comments that strengthened the manuscript.
J. C. Z. and M. H. P. acknowledge support from NASA grants 80NSSC18K0391 and NNX17AJ40G.
Y. E. and C. J. acknowledge the support of the UK Science and Technology Facilities
Council (STFC). S. M. would like to acknowledge support from the Spanish Ministry
with the Ramon y Cajal fellowship number RYC-2015-17697. R. A. G. acknowledges funding
received from the PLATO CNES grant. R. S. acknowledges funding via a Royal Society
University Research Fellowship. D.H. acknowledges support from the Alfred P. Sloan
Foundation and the National Aeronautics and Space Administration (80NSSC19K0108).
V.S.A. acknowledges support from the Independent Research Fund Denmark (Research
grant 7027-00096B), and the Carlsberg foundation (grant agreement CF19-0649). This
research was supported in part by the National Science Foundation under grant No.
NSF PHY-1748958.\r\n\r\nFunding for the Stellar Astrophysics Centre (SAC) is provided
by The Danish National Research Foundation (grant agreement No. DNRF106).\r\n\r\nThe
K2 Galactic Archaeology Program is supported by the National Aeronautics and Space
Administration under grant NNX16AJ17G issued through the K2 Guest Observer Program.\r\n\r\nThis
publication makes use of data products from the Two Micron All Sky Survey, which
is a joint project of the University of Massachusetts and the Infrared Processing
and Analysis Center/California Institute of Technology, funded by the National Aeronautics
and Space Administration and the National Science Foundation.\r\n\r\nThis work has
made use of data from the European Space Agency (ESA) mission Gaia (https://www.cosmos.esa.int/gaia),
processed by the Gaia Data Processing and Analysis Consortium (DPAC, https://www.cosmos.esa.int/web/gaia/dpac/consortium).
Funding for the DPAC has been provided by national institutions, in particular the
institutions participating in the Gaia Multilateral Agreement.\r\n\r\nFunding for
the Sloan Digital Sky Survey IV has been provided by the Alfred P. Sloan Foundation,
the U.S. Department of Energy Office of Science, and the Participating Institutions.
SDSS-IV acknowledges support and resources from the Center for High Performance
Computing at the University of Utah. The SDSS website is www.sdss.org.\r\n\r\nSDSS-IV
is managed by the Astrophysical Research Consortium for the Participating Institutions
of the SDSS Collaboration, including the Brazilian Participation Group, the Carnegie
Institution for Science, Carnegie Mellon University, the Chilean Participation Group,
the French Participation Group, the Harvard–Smithsonian Center for Astrophysics,
Instituto de Astrofísica de Canarias, The Johns Hopkins University, Kavli Institute
for the Physics and Mathematics of the Universe (IPMU)/University of Tokyo, the
Korean Participation Group, Lawrence Berkeley National Laboratory, Leibniz Institut
für Astrophysik Potsdam (AIP), Max-Planck-Institut für Astronomie (MPIA Heidelberg),
Max-Planck-Institut für Astrophysik (MPA Garching), Max-Planck-Institut für Extraterrestrische
Physik (MPE), National Astronomical Observatories of China, New Mexico State University,
New York University, University of Notre Dame, Observatário Nacional/MCTI, The Ohio
State University, Pennsylvania State University, Shanghai Astronomical Observatory,
United Kingdom Participation Group, Universidad Nacional Autónoma de México, University
of Arizona, University of Colorado Boulder, University of Oxford, University of
Portsmouth, University of Utah, University of Virginia, University of Washington,
University of Wisconsin, Vanderbilt University, and Yale University.\r\n\r\nSoftware:
asfgrid (Sharma & Stello 2016), emcee (Foreman-Mackey et al. 2013), NumPy (Walt
2011), pandas (McKinney 2010; Reback et al. 2020), Matplotlib (Hunter 2007), IPython
(Pérez & Granger 2007), SciPy (Virtanen et al. 2020)."
article_number: '23'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Joel C.
full_name: Zinn, Joel C.
last_name: Zinn
- first_name: Dennis
full_name: Stello, Dennis
last_name: Stello
- first_name: Yvonne
full_name: Elsworth, Yvonne
last_name: Elsworth
- first_name: Rafael A.
full_name: García, Rafael A.
last_name: García
- first_name: Thomas
full_name: Kallinger, Thomas
last_name: Kallinger
- first_name: Savita
full_name: Mathur, Savita
last_name: Mathur
- first_name: Benoît
full_name: Mosser, Benoît
last_name: Mosser
- first_name: Lisa Annabelle
full_name: Bugnet, Lisa Annabelle
id: d9edb345-f866-11ec-9b37-d119b5234501
last_name: Bugnet
orcid: 0000-0003-0142-4000
- first_name: Caitlin
full_name: Jones, Caitlin
last_name: Jones
- first_name: Marc
full_name: Hon, Marc
last_name: Hon
- first_name: Sanjib
full_name: Sharma, Sanjib
last_name: Sharma
- first_name: Ralph
full_name: Schönrich, Ralph
last_name: Schönrich
- first_name: Jack T.
full_name: Warfield, Jack T.
last_name: Warfield
- first_name: Rodrigo
full_name: Luger, Rodrigo
last_name: Luger
- first_name: Marc H.
full_name: Pinsonneault, Marc H.
last_name: Pinsonneault
- first_name: Jennifer A.
full_name: Johnson, Jennifer A.
last_name: Johnson
- first_name: Daniel
full_name: Huber, Daniel
last_name: Huber
- first_name: Victor Silva
full_name: Aguirre, Victor Silva
last_name: Aguirre
- first_name: William J.
full_name: Chaplin, William J.
last_name: Chaplin
- first_name: Guy R.
full_name: Davies, Guy R.
last_name: Davies
- first_name: Andrea
full_name: Miglio, Andrea
last_name: Miglio
citation:
ama: 'Zinn JC, Stello D, Elsworth Y, et al. The K2 galactic archaeology program
data release 2: Asteroseismic results from campaigns 4, 6, and 7. The Astrophysical
Journal Supplement Series. 2020;251(2). doi:10.3847/1538-4365/abbee3'
apa: 'Zinn, J. C., Stello, D., Elsworth, Y., García, R. A., Kallinger, T., Mathur,
S., … Miglio, A. (2020). The K2 galactic archaeology program data release 2: Asteroseismic
results from campaigns 4, 6, and 7. The Astrophysical Journal Supplement Series.
IOP Publishing. https://doi.org/10.3847/1538-4365/abbee3'
chicago: 'Zinn, Joel C., Dennis Stello, Yvonne Elsworth, Rafael A. García, Thomas
Kallinger, Savita Mathur, Benoît Mosser, et al. “The K2 Galactic Archaeology Program
Data Release 2: Asteroseismic Results from Campaigns 4, 6, and 7.” The Astrophysical
Journal Supplement Series. IOP Publishing, 2020. https://doi.org/10.3847/1538-4365/abbee3.'
ieee: 'J. C. Zinn et al., “The K2 galactic archaeology program data release
2: Asteroseismic results from campaigns 4, 6, and 7,” The Astrophysical Journal
Supplement Series, vol. 251, no. 2. IOP Publishing, 2020.'
ista: 'Zinn JC, Stello D, Elsworth Y, García RA, Kallinger T, Mathur S, Mosser B,
Bugnet LA, Jones C, Hon M, Sharma S, Schönrich R, Warfield JT, Luger R, Pinsonneault
MH, Johnson JA, Huber D, Aguirre VS, Chaplin WJ, Davies GR, Miglio A. 2020. The
K2 galactic archaeology program data release 2: Asteroseismic results from campaigns
4, 6, and 7. The Astrophysical Journal Supplement Series. 251(2), 23.'
mla: 'Zinn, Joel C., et al. “The K2 Galactic Archaeology Program Data Release 2:
Asteroseismic Results from Campaigns 4, 6, and 7.” The Astrophysical Journal
Supplement Series, vol. 251, no. 2, 23, IOP Publishing, 2020, doi:10.3847/1538-4365/abbee3.'
short: J.C. Zinn, D. Stello, Y. Elsworth, R.A. García, T. Kallinger, S. Mathur,
B. Mosser, L.A. Bugnet, C. Jones, M. Hon, S. Sharma, R. Schönrich, J.T. Warfield,
R. Luger, M.H. Pinsonneault, J.A. Johnson, D. Huber, V.S. Aguirre, W.J. Chaplin,
G.R. Davies, A. Miglio, The Astrophysical Journal Supplement Series 251 (2020).
date_created: 2022-07-18T13:27:26Z
date_published: 2020-12-01T00:00:00Z
date_updated: 2022-08-22T07:04:45Z
day: '01'
doi: 10.3847/1538-4365/abbee3
extern: '1'
external_id:
arxiv:
- '2012.04051'
intvolume: ' 251'
issue: '2'
keyword:
- Space and Planetary Science
- Astronomy and Astrophysics
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/2012.04051
month: '12'
oa: 1
oa_version: Preprint
publication: The Astrophysical Journal Supplement Series
publication_identifier:
eissn:
- 1538-4365
issn:
- 0067-0049
publication_status: published
publisher: IOP Publishing
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'The K2 galactic archaeology program data release 2: Asteroseismic results
from campaigns 4, 6, and 7'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 251
year: '2020'
...
---
_id: '11611'
abstract:
- lang: eng
text: Over the course of its history, the Milky Way has ingested multiple smaller
satellite galaxies1. Although these accreted stellar populations can be forensically
identified as kinematically distinct structures within the Galaxy, it is difficult
in general to date precisely the age at which any one merger occurred. Recent
results have revealed a population of stars that were accreted via the collision
of a dwarf galaxy, called Gaia–Enceladus1, leading to substantial pollution of
the chemical and dynamical properties of the Milky Way. Here we identify the very
bright, naked-eye star ν Indi as an indicator of the age of the early in situ
population of the Galaxy. We combine asteroseismic, spectroscopic, astrometric
and kinematic observations to show that this metal-poor, alpha-element-rich star
was an indigenous member of the halo, and we measure its age to be 11.0±0.7 (stat)
±0.8 (sys) billion years. The star bears hallmarks consistent with having been
kinematically heated by the Gaia–Enceladus collision. Its age implies that the
earliest the merger could have begun was 11.6 and 13.2 billion years ago, at 68%
and 95% confidence, respectively. Computations based on hierarchical cosmological
models slightly reduce the above limits.
acknowledgement: This paper includes data collected by the TESS mission, which are
publicly available from the Mikulski Archive for Space Telescopes (MAST). Resources
supporting this work were provided by the NASA High-End Computing (HEC) Program
through the NASA Advanced Supercomputing (NAS) Division at Ames Research Center
for the production of the SPOC data products. W.J.C. acknowledges support from the
UK Science and Technology Facilities Council (STFC) and UK Space Agency. Funding
for the Stellar Astrophysics Centre is provided by The Danish National Research
Foundation (grant agreement number DNRF106). This research was partially conducted
during the Exostar19 programme at the Kavli Institute for Theoretical Physics at
UC Santa Barbara, which was supported in part by the National Science Foundation
under grant number NSF PHY-1748958. A.M., J.T.M., F.V. and J.M. acknowledge support
from the ERC Consolidator Grant funding scheme (project ASTEROCHRONOMETRY, grant
agreement number 772293). F.V. acknowledges the support of a Fellowship from the
Center for Cosmology and AstroParticle Physics at The Ohio State University. W.H.B.
and M.B.N. acknowledge support from the UK Space Agency. K.J.B. is supported by
the National Science Foundation under award AST-1903828. M.B.N. acknowledges partial
support from the NYU Abu Dhabi Center for Space Science under grant number G1502.
A.M.S. is partially supported by the Spanish Government (ESP2017-82674-R) and Generalitat
de Catalunya (2017-SGR-1131). T.M. acknowledges financial support from Belspo for
contract PRODEX PLATO. H.K. acknowledges support from the European Social Fund via
the Lithuanian Science Council grant number 09.3.3-LMT-K-712-01-0103. S.B. acknowledges
support from NSF grant AST-1514676 and NASA grant 80NSSC19K0374. V.S.A. acknowledges
support from the Independent Research Fund Denmark (research grant 7027-00096B).
D.H. acknowledges support by the National Aeronautics and Space Administration (80NSSC18K1585,
80NSSC19K0379) awarded through the TESS Guest Investigator Program and by the National
Science Foundation (AST-1717000). T.S.M. acknowledges support from a visiting fellowship
at the Max Planck Institute for Solar System Research. Computational resources were
provided through XSEDE allocation TG-AST090107. D.L.B. acknowledges support from
NASA under grant NNX16AB76G. T.L.C. acknowledges support from the European Union’s
Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie
grant agreement number 792848 (PULSATION). This work was supported by FCT/MCTES
through national funds (PIDDAC) by means of grant UID/FIS/04434/2019. K.J.B., S.H.,
J.S.K. and N.T. are supported by the European Research Council under the European
Community’s Seventh Framework Programme (FP7/2007-2013)/ERC grant agreement number
338251 (StellarAges). E.C. is funded by the European Union’s Horizon 2020 research
and innovation program under the Marie Sklodowska-Curie grant agreement number 664931.
L.G.-C. acknowledges support from the MINECO FPI-SO doctoral research project SEV-2015-0548-17-2
and predoctoral contract BES-2017-082610. P.G. is supported by the German space
agency (Deutsches Zentrum für Luft- und Raumfahrt) under PLATO data grant 50OO1501.
R.K. acknowledges support from the UK Science and Technology Facilities Council
(STFC), under consolidated grant ST/L000733/1. M.S.L. is supported by the Carlsberg
Foundation (grant agreement number CF17-076). Z.C.O., S.O. and M.Y. acknowledge
support from the Scientific and Technological Research Council of Turkey (TÜBİTAK:118F352).
S.M. acknowledges support from the Spanish ministry through the Ramon y Cajal fellowship
number RYC-2015-17697. T.S.R. acknowledges financial support from Premiale 2015
MITiC (PI B. Garilli). R.Sz. acknowledges the support from NKFIH grant project No.
K-115709, and the Lendület program of the Hungarian Academy of Science (project
number 2018-7/2019). J.T. acknowledges support was provided by NASA through the
NASA Hubble Fellowship grant number 51424 awarded by the Space Telescope Science
Institute, which is operated by the Association of Universities for Research in
Astronomy, Inc., for NASA, under contract NAS5-26555. This work was supported by
FEDER through COMPETE2020 (POCI-01-0145-FEDER-030389. A.M.B. acknowledges funding
from the European Union’s Horizon 2020 research and innovation program under the
Marie Sklodowska-Curie grant agreement No 749962 (project THOT). A.M. and P.R. acknowledge
the support of the Government of India, Department of Atomic Energy, under Project
No. 12-R&D-TFR-6.04-0600. K.J.B. is an NSF Astronomy and Astrophysics Postdoctoral
Fellow and DIRAC Fellow.
article_processing_charge: No
article_type: letter_note
arxiv: 1
author:
- first_name: William J.
full_name: Chaplin, William J.
last_name: Chaplin
- first_name: Aldo M.
full_name: Serenelli, Aldo M.
last_name: Serenelli
- first_name: Andrea
full_name: Miglio, Andrea
last_name: Miglio
- first_name: Thierry
full_name: Morel, Thierry
last_name: Morel
- first_name: J. Ted
full_name: Mackereth, J. Ted
last_name: Mackereth
- first_name: Fiorenzo
full_name: Vincenzo, Fiorenzo
last_name: Vincenzo
- first_name: Hans
full_name: Kjeldsen, Hans
last_name: Kjeldsen
- first_name: Sarbani
full_name: Basu, Sarbani
last_name: Basu
- first_name: Warrick H.
full_name: Ball, Warrick H.
last_name: Ball
- first_name: Amalie
full_name: Stokholm, Amalie
last_name: Stokholm
- first_name: Kuldeep
full_name: Verma, Kuldeep
last_name: Verma
- first_name: Jakob Rørsted
full_name: Mosumgaard, Jakob Rørsted
last_name: Mosumgaard
- first_name: Victor
full_name: Silva Aguirre, Victor
last_name: Silva Aguirre
- first_name: Anwesh
full_name: Mazumdar, Anwesh
last_name: Mazumdar
- first_name: Pritesh
full_name: Ranadive, Pritesh
last_name: Ranadive
- first_name: H. M.
full_name: Antia, H. M.
last_name: Antia
- first_name: Yveline
full_name: Lebreton, Yveline
last_name: Lebreton
- first_name: Joel
full_name: Ong, Joel
last_name: Ong
- first_name: Thierry
full_name: Appourchaux, Thierry
last_name: Appourchaux
- first_name: Timothy R.
full_name: Bedding, Timothy R.
last_name: Bedding
- first_name: Jørgen
full_name: Christensen-Dalsgaard, Jørgen
last_name: Christensen-Dalsgaard
- first_name: Orlagh
full_name: Creevey, Orlagh
last_name: Creevey
- first_name: Rafael A.
full_name: García, Rafael A.
last_name: García
- first_name: Rasmus
full_name: Handberg, Rasmus
last_name: Handberg
- first_name: Daniel
full_name: Huber, Daniel
last_name: Huber
- first_name: Steven D.
full_name: Kawaler, Steven D.
last_name: Kawaler
- first_name: Mikkel N.
full_name: Lund, Mikkel N.
last_name: Lund
- first_name: Travis S.
full_name: Metcalfe, Travis S.
last_name: Metcalfe
- first_name: Keivan G.
full_name: Stassun, Keivan G.
last_name: Stassun
- first_name: Michäel
full_name: Bazot, Michäel
last_name: Bazot
- first_name: Paul G.
full_name: Beck, Paul G.
last_name: Beck
- first_name: Keaton J.
full_name: Bell, Keaton J.
last_name: Bell
- first_name: Maria
full_name: Bergemann, Maria
last_name: Bergemann
- first_name: Derek L.
full_name: Buzasi, Derek L.
last_name: Buzasi
- first_name: Othman
full_name: Benomar, Othman
last_name: Benomar
- first_name: Diego
full_name: Bossini, Diego
last_name: Bossini
- first_name: Lisa Annabelle
full_name: Bugnet, Lisa Annabelle
id: d9edb345-f866-11ec-9b37-d119b5234501
last_name: Bugnet
orcid: 0000-0003-0142-4000
- first_name: Tiago L.
full_name: Campante, Tiago L.
last_name: Campante
- first_name: Zeynep Çelik
full_name: Orhan, Zeynep Çelik
last_name: Orhan
- first_name: Enrico
full_name: Corsaro, Enrico
last_name: Corsaro
- first_name: Lucía
full_name: González-Cuesta, Lucía
last_name: González-Cuesta
- first_name: Guy R.
full_name: Davies, Guy R.
last_name: Davies
- first_name: Maria Pia
full_name: Di Mauro, Maria Pia
last_name: Di Mauro
- first_name: Ricky
full_name: Egeland, Ricky
last_name: Egeland
- first_name: Yvonne P.
full_name: Elsworth, Yvonne P.
last_name: Elsworth
- first_name: Patrick
full_name: Gaulme, Patrick
last_name: Gaulme
- first_name: Hamed
full_name: Ghasemi, Hamed
last_name: Ghasemi
- first_name: Zhao
full_name: Guo, Zhao
last_name: Guo
- first_name: Oliver J.
full_name: Hall, Oliver J.
last_name: Hall
- first_name: Amir
full_name: Hasanzadeh, Amir
last_name: Hasanzadeh
- first_name: Saskia
full_name: Hekker, Saskia
last_name: Hekker
- first_name: Rachel
full_name: Howe, Rachel
last_name: Howe
- first_name: Jon M.
full_name: Jenkins, Jon M.
last_name: Jenkins
- first_name: Antonio
full_name: Jiménez, Antonio
last_name: Jiménez
- first_name: René
full_name: Kiefer, René
last_name: Kiefer
- first_name: James S.
full_name: Kuszlewicz, James S.
last_name: Kuszlewicz
- first_name: Thomas
full_name: Kallinger, Thomas
last_name: Kallinger
- first_name: David W.
full_name: Latham, David W.
last_name: Latham
- first_name: Mia S.
full_name: Lundkvist, Mia S.
last_name: Lundkvist
- first_name: Savita
full_name: Mathur, Savita
last_name: Mathur
- first_name: Josefina
full_name: Montalbán, Josefina
last_name: Montalbán
- first_name: Benoit
full_name: Mosser, Benoit
last_name: Mosser
- first_name: Andres Moya
full_name: Bedón, Andres Moya
last_name: Bedón
- first_name: Martin Bo
full_name: Nielsen, Martin Bo
last_name: Nielsen
- first_name: Sibel
full_name: Örtel, Sibel
last_name: Örtel
- first_name: Ben M.
full_name: Rendle, Ben M.
last_name: Rendle
- first_name: George R.
full_name: Ricker, George R.
last_name: Ricker
- first_name: Thaíse S.
full_name: Rodrigues, Thaíse S.
last_name: Rodrigues
- first_name: Ian W.
full_name: Roxburgh, Ian W.
last_name: Roxburgh
- first_name: Hossein
full_name: Safari, Hossein
last_name: Safari
- first_name: Mathew
full_name: Schofield, Mathew
last_name: Schofield
- first_name: Sara
full_name: Seager, Sara
last_name: Seager
- first_name: Barry
full_name: Smalley, Barry
last_name: Smalley
- first_name: Dennis
full_name: Stello, Dennis
last_name: Stello
- first_name: Róbert
full_name: Szabó, Róbert
last_name: Szabó
- first_name: Jamie
full_name: Tayar, Jamie
last_name: Tayar
- first_name: Nathalie
full_name: Themeßl, Nathalie
last_name: Themeßl
- first_name: Alexandra E. L.
full_name: Thomas, Alexandra E. L.
last_name: Thomas
- first_name: Roland K.
full_name: Vanderspek, Roland K.
last_name: Vanderspek
- first_name: Walter E.
full_name: van Rossem, Walter E.
last_name: van Rossem
- first_name: Mathieu
full_name: Vrard, Mathieu
last_name: Vrard
- first_name: Achim
full_name: Weiss, Achim
last_name: Weiss
- first_name: Timothy R.
full_name: White, Timothy R.
last_name: White
- first_name: Joshua N.
full_name: Winn, Joshua N.
last_name: Winn
- first_name: Mutlu
full_name: Yıldız, Mutlu
last_name: Yıldız
citation:
ama: Chaplin WJ, Serenelli AM, Miglio A, et al. Age dating of an early Milky Way
merger via asteroseismology of the naked-eye star ν Indi. Nature Astronomy.
2020;4(4):382-389. doi:10.1038/s41550-019-0975-9
apa: Chaplin, W. J., Serenelli, A. M., Miglio, A., Morel, T., Mackereth, J. T.,
Vincenzo, F., … Yıldız, M. (2020). Age dating of an early Milky Way merger via
asteroseismology of the naked-eye star ν Indi. Nature Astronomy. Springer
Nature. https://doi.org/10.1038/s41550-019-0975-9
chicago: Chaplin, William J., Aldo M. Serenelli, Andrea Miglio, Thierry Morel, J.
Ted Mackereth, Fiorenzo Vincenzo, Hans Kjeldsen, et al. “Age Dating of an Early
Milky Way Merger via Asteroseismology of the Naked-Eye Star ν Indi.” Nature
Astronomy. Springer Nature, 2020. https://doi.org/10.1038/s41550-019-0975-9.
ieee: W. J. Chaplin et al., “Age dating of an early Milky Way merger via
asteroseismology of the naked-eye star ν Indi,” Nature Astronomy, vol.
4, no. 4. Springer Nature, pp. 382–389, 2020.
ista: Chaplin WJ, Serenelli AM, Miglio A, Morel T, Mackereth JT, Vincenzo F, Kjeldsen
H, Basu S, Ball WH, Stokholm A, Verma K, Mosumgaard JR, Silva Aguirre V, Mazumdar
A, Ranadive P, Antia HM, Lebreton Y, Ong J, Appourchaux T, Bedding TR, Christensen-Dalsgaard
J, Creevey O, García RA, Handberg R, Huber D, Kawaler SD, Lund MN, Metcalfe TS,
Stassun KG, Bazot M, Beck PG, Bell KJ, Bergemann M, Buzasi DL, Benomar O, Bossini
D, Bugnet LA, Campante TL, Orhan ZÇ, Corsaro E, González-Cuesta L, Davies GR,
Di Mauro MP, Egeland R, Elsworth YP, Gaulme P, Ghasemi H, Guo Z, Hall OJ, Hasanzadeh
A, Hekker S, Howe R, Jenkins JM, Jiménez A, Kiefer R, Kuszlewicz JS, Kallinger
T, Latham DW, Lundkvist MS, Mathur S, Montalbán J, Mosser B, Bedón AM, Nielsen
MB, Örtel S, Rendle BM, Ricker GR, Rodrigues TS, Roxburgh IW, Safari H, Schofield
M, Seager S, Smalley B, Stello D, Szabó R, Tayar J, Themeßl N, Thomas AEL, Vanderspek
RK, van Rossem WE, Vrard M, Weiss A, White TR, Winn JN, Yıldız M. 2020. Age dating
of an early Milky Way merger via asteroseismology of the naked-eye star ν Indi.
Nature Astronomy. 4(4), 382–389.
mla: Chaplin, William J., et al. “Age Dating of an Early Milky Way Merger via Asteroseismology
of the Naked-Eye Star ν Indi.” Nature Astronomy, vol. 4, no. 4, Springer
Nature, 2020, pp. 382–89, doi:10.1038/s41550-019-0975-9.
short: W.J. Chaplin, A.M. Serenelli, A. Miglio, T. Morel, J.T. Mackereth, F. Vincenzo,
H. Kjeldsen, S. Basu, W.H. Ball, A. Stokholm, K. Verma, J.R. Mosumgaard, V. Silva
Aguirre, A. Mazumdar, P. Ranadive, H.M. Antia, Y. Lebreton, J. Ong, T. Appourchaux,
T.R. Bedding, J. Christensen-Dalsgaard, O. Creevey, R.A. García, R. Handberg,
D. Huber, S.D. Kawaler, M.N. Lund, T.S. Metcalfe, K.G. Stassun, M. Bazot, P.G.
Beck, K.J. Bell, M. Bergemann, D.L. Buzasi, O. Benomar, D. Bossini, L.A. Bugnet,
T.L. Campante, Z.Ç. Orhan, E. Corsaro, L. González-Cuesta, G.R. Davies, M.P. Di
Mauro, R. Egeland, Y.P. Elsworth, P. Gaulme, H. Ghasemi, Z. Guo, O.J. Hall, A.
Hasanzadeh, S. Hekker, R. Howe, J.M. Jenkins, A. Jiménez, R. Kiefer, J.S. Kuszlewicz,
T. Kallinger, D.W. Latham, M.S. Lundkvist, S. Mathur, J. Montalbán, B. Mosser,
A.M. Bedón, M.B. Nielsen, S. Örtel, B.M. Rendle, G.R. Ricker, T.S. Rodrigues,
I.W. Roxburgh, H. Safari, M. Schofield, S. Seager, B. Smalley, D. Stello, R. Szabó,
J. Tayar, N. Themeßl, A.E.L. Thomas, R.K. Vanderspek, W.E. van Rossem, M. Vrard,
A. Weiss, T.R. White, J.N. Winn, M. Yıldız, Nature Astronomy 4 (2020) 382–389.
date_created: 2022-07-18T13:36:19Z
date_published: 2020-04-01T00:00:00Z
date_updated: 2022-08-22T07:08:29Z
day: '01'
doi: 10.1038/s41550-019-0975-9
extern: '1'
external_id:
arxiv:
- '2001.04653'
intvolume: ' 4'
issue: '4'
keyword:
- Astronomy and Astrophysics
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/2001.04653
month: '04'
oa: 1
oa_version: Preprint
page: 382-389
publication: Nature Astronomy
publication_identifier:
eissn:
- 2397-3366
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: Age dating of an early Milky Way merger via asteroseismology of the naked-eye
star ν Indi
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 4
year: '2020'
...