---
_id: '1078'
abstract:
- lang: eng
text: 'One of the key questions in understanding plant development is how single
cells behave in a larger context of the tissue. Therefore, it requires the observation
of the whole organ with a high spatial- as well as temporal resolution over prolonged
periods of time, which may cause photo-toxic effects. This protocol shows a plant
sample preparation method for light-sheet microscopy, which is characterized by
mounting the plant vertically on the surface of a gel. The plant is mounted in
such a way that the roots are submerged in a liquid medium while the leaves remain
in the air. In order to ensure photosynthetic activity of the plant, a custom-made
lighting system illuminates the leaves. To keep the roots in darkness the water
surface is covered with sheets of black plastic foil. This method allows long-term
imaging of plant organ development in standardized conditions. '
acknowledged_ssus:
- _id: M-Shop
- _id: Bio
article_number: e55044
article_processing_charge: No
author:
- first_name: Daniel
full_name: Von Wangenheim, Daniel
id: 49E91952-F248-11E8-B48F-1D18A9856A87
last_name: Von Wangenheim
orcid: 0000-0002-6862-1247
- first_name: Robert
full_name: Hauschild, Robert
id: 4E01D6B4-F248-11E8-B48F-1D18A9856A87
last_name: Hauschild
orcid: 0000-0001-9843-3522
- first_name: Jirí
full_name: Friml, Jirí
id: 4159519E-F248-11E8-B48F-1D18A9856A87
last_name: Friml
orcid: 0000-0002-8302-7596
citation:
ama: von Wangenheim D, Hauschild R, Friml J. Light sheet fluorescence microscopy
of plant roots growing on the surface of a gel. Journal of visualized experiments
JoVE. 2017;2017(119). doi:10.3791/55044
apa: von Wangenheim, D., Hauschild, R., & Friml, J. (2017). Light sheet fluorescence
microscopy of plant roots growing on the surface of a gel. Journal of Visualized
Experiments JoVE. Journal of Visualized Experiments. https://doi.org/10.3791/55044
chicago: Wangenheim, Daniel von, Robert Hauschild, and Jiří Friml. “Light Sheet
Fluorescence Microscopy of Plant Roots Growing on the Surface of a Gel.” Journal
of Visualized Experiments JoVE. Journal of Visualized Experiments, 2017. https://doi.org/10.3791/55044.
ieee: D. von Wangenheim, R. Hauschild, and J. Friml, “Light sheet fluorescence microscopy
of plant roots growing on the surface of a gel,” Journal of visualized experiments
JoVE, vol. 2017, no. 119. Journal of Visualized Experiments, 2017.
ista: von Wangenheim D, Hauschild R, Friml J. 2017. Light sheet fluorescence microscopy
of plant roots growing on the surface of a gel. Journal of visualized experiments
JoVE. 2017(119), e55044.
mla: von Wangenheim, Daniel, et al. “Light Sheet Fluorescence Microscopy of Plant
Roots Growing on the Surface of a Gel.” Journal of Visualized Experiments JoVE,
vol. 2017, no. 119, e55044, Journal of Visualized Experiments, 2017, doi:10.3791/55044.
short: D. von Wangenheim, R. Hauschild, J. Friml, Journal of Visualized Experiments
JoVE 2017 (2017).
date_created: 2018-12-11T11:50:01Z
date_published: 2017-01-18T00:00:00Z
date_updated: 2025-04-15T06:50:23Z
day: '18'
ddc:
- '580'
department:
- _id: JiFr
- _id: Bio
doi: 10.3791/55044
ec_funded: 1
external_id:
isi:
- '000397847200041'
file:
- access_level: open_access
content_type: application/pdf
creator: system
date_created: 2018-12-12T10:16:31Z
date_updated: 2018-12-12T10:16:31Z
file_id: '5219'
file_name: IST-2017-808-v1+1_2017_VWangenheim_list.pdf
file_size: 57678
relation: main_file
- access_level: open_access
content_type: application/pdf
creator: system
date_created: 2018-12-12T10:16:32Z
date_updated: 2018-12-12T10:16:32Z
file_id: '5220'
file_name: IST-2017-808-v1+2_2017_VWangenheim_article.pdf
file_size: 1317820
relation: main_file
file_date_updated: 2018-12-12T10:16:32Z
has_accepted_license: '1'
intvolume: ' 2017'
isi: 1
issue: '119'
language:
- iso: eng
month: '01'
oa: 1
oa_version: Published Version
project:
- _id: 25681D80-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '291734'
name: International IST Postdoc Fellowship Programme
- _id: 25716A02-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '282300'
name: Polarity and subcellular dynamics in plants
publication: Journal of visualized experiments JoVE
publication_status: published
publisher: Journal of Visualized Experiments
publist_id: '6302'
pubrep_id: '808'
related_material:
record:
- id: '5565'
relation: popular_science
status: public
scopus_import: '1'
status: public
title: Light sheet fluorescence microscopy of plant roots growing on the surface of
a gel
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 2017
year: '2017'
...
---
_id: '1079'
abstract:
- lang: eng
text: We study the ionization problem in the Thomas-Fermi-Dirac-von Weizsäcker theory
for atoms and molecules. We prove the nonexistence of minimizers for the energy
functional when the number of electrons is large and the total nuclear charge
is small. This nonexistence result also applies to external potentials decaying
faster than the Coulomb potential. In the case of arbitrary nuclear charges, we
obtain the nonexistence of stable minimizers and radial minimizers.
article_number: '6'
article_processing_charge: No
arxiv: 1
author:
- first_name: Phan
full_name: Nam, Phan
id: 404092F4-F248-11E8-B48F-1D18A9856A87
last_name: Nam
- first_name: Hanne
full_name: Van Den Bosch, Hanne
last_name: Van Den Bosch
citation:
ama: Nam P, Van Den Bosch H. Nonexistence in Thomas Fermi-Dirac-von Weizsäcker theory
with small nuclear charges. Mathematical Physics, Analysis and Geometry.
2017;20(2). doi:10.1007/s11040-017-9238-0
apa: Nam, P., & Van Den Bosch, H. (2017). Nonexistence in Thomas Fermi-Dirac-von
Weizsäcker theory with small nuclear charges. Mathematical Physics, Analysis
and Geometry. Springer. https://doi.org/10.1007/s11040-017-9238-0
chicago: Nam, Phan, and Hanne Van Den Bosch. “Nonexistence in Thomas Fermi-Dirac-von
Weizsäcker Theory with Small Nuclear Charges.” Mathematical Physics, Analysis
and Geometry. Springer, 2017. https://doi.org/10.1007/s11040-017-9238-0.
ieee: P. Nam and H. Van Den Bosch, “Nonexistence in Thomas Fermi-Dirac-von Weizsäcker
theory with small nuclear charges,” Mathematical Physics, Analysis and Geometry,
vol. 20, no. 2. Springer, 2017.
ista: Nam P, Van Den Bosch H. 2017. Nonexistence in Thomas Fermi-Dirac-von Weizsäcker
theory with small nuclear charges. Mathematical Physics, Analysis and Geometry.
20(2), 6.
mla: Nam, Phan, and Hanne Van Den Bosch. “Nonexistence in Thomas Fermi-Dirac-von
Weizsäcker Theory with Small Nuclear Charges.” Mathematical Physics, Analysis
and Geometry, vol. 20, no. 2, 6, Springer, 2017, doi:10.1007/s11040-017-9238-0.
short: P. Nam, H. Van Den Bosch, Mathematical Physics, Analysis and Geometry 20
(2017).
date_created: 2018-12-11T11:50:02Z
date_published: 2017-06-01T00:00:00Z
date_updated: 2025-06-04T08:11:50Z
day: '01'
department:
- _id: RoSe
doi: 10.1007/s11040-017-9238-0
external_id:
arxiv:
- '1603.07368'
isi:
- '000401270000004'
intvolume: ' 20'
isi: 1
issue: '2'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1603.07368
month: '06'
oa: 1
oa_version: Submitted Version
project:
- _id: 25C878CE-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: P27533_N27
name: Structure of the Excitation Spectrum for Many-Body Quantum Systems
publication: Mathematical Physics, Analysis and Geometry
publication_identifier:
issn:
- 1385-0172
publication_status: published
publisher: Springer
publist_id: '6300'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Nonexistence in Thomas Fermi-Dirac-von Weizsäcker theory with small nuclear
charges
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 20
year: '2017'
...
---
_id: '1080'
abstract:
- lang: eng
text: Reconstructing the evolutionary history of metastases is critical for understanding
their basic biological principles and has profound clinical implications. Genome-wide
sequencing data has enabled modern phylogenomic methods to accurately dissect
subclones and their phylogenies from noisy and impure bulk tumour samples at unprecedented
depth. However, existing methods are not designed to infer metastatic seeding
patterns. Here we develop a tool, called Treeomics, to reconstruct the phylogeny
of metastases and map subclones to their anatomic locations. Treeomics infers
comprehensive seeding patterns for pancreatic, ovarian, and prostate cancers.
Moreover, Treeomics correctly disambiguates true seeding patterns from sequencing
artifacts; 7% of variants were misclassified by conventional statistical methods.
These artifacts can skew phylogenies by creating illusory tumour heterogeneity
among distinct samples. In silico benchmarking on simulated tumour phylogenies
across a wide range of sample purities (15–95%) and sequencing depths (25-800
× ) demonstrates the accuracy of Treeomics compared with existing methods.
article_number: '14114'
article_processing_charge: No
author:
- first_name: Johannes
full_name: Reiter, Johannes
id: 4A918E98-F248-11E8-B48F-1D18A9856A87
last_name: Reiter
orcid: 0000-0002-0170-7353
- first_name: Alvin
full_name: Makohon Moore, Alvin
last_name: Makohon Moore
- first_name: Jeffrey
full_name: Gerold, Jeffrey
last_name: Gerold
- first_name: Ivana
full_name: Božić, Ivana
last_name: Božić
- first_name: Krishnendu
full_name: Chatterjee, Krishnendu
id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
last_name: Chatterjee
orcid: 0000-0002-4561-241X
- first_name: Christine
full_name: Iacobuzio Donahue, Christine
last_name: Iacobuzio Donahue
- first_name: Bert
full_name: Vogelstein, Bert
last_name: Vogelstein
- first_name: Martin
full_name: Nowak, Martin
last_name: Nowak
citation:
ama: Reiter J, Makohon Moore A, Gerold J, et al. Reconstructing metastatic seeding
patterns of human cancers. Nature Communications. 2017;8. doi:10.1038/ncomms14114
apa: Reiter, J., Makohon Moore, A., Gerold, J., Božić, I., Chatterjee, K., Iacobuzio
Donahue, C., … Nowak, M. (2017). Reconstructing metastatic seeding patterns of
human cancers. Nature Communications. Nature Publishing Group. https://doi.org/10.1038/ncomms14114
chicago: Reiter, Johannes, Alvin Makohon Moore, Jeffrey Gerold, Ivana Božić, Krishnendu
Chatterjee, Christine Iacobuzio Donahue, Bert Vogelstein, and Martin Nowak. “Reconstructing
Metastatic Seeding Patterns of Human Cancers.” Nature Communications. Nature
Publishing Group, 2017. https://doi.org/10.1038/ncomms14114.
ieee: J. Reiter et al., “Reconstructing metastatic seeding patterns of human
cancers,” Nature Communications, vol. 8. Nature Publishing Group, 2017.
ista: Reiter J, Makohon Moore A, Gerold J, Božić I, Chatterjee K, Iacobuzio Donahue
C, Vogelstein B, Nowak M. 2017. Reconstructing metastatic seeding patterns of
human cancers. Nature Communications. 8, 14114.
mla: Reiter, Johannes, et al. “Reconstructing Metastatic Seeding Patterns of Human
Cancers.” Nature Communications, vol. 8, 14114, Nature Publishing Group,
2017, doi:10.1038/ncomms14114.
short: J. Reiter, A. Makohon Moore, J. Gerold, I. Božić, K. Chatterjee, C. Iacobuzio
Donahue, B. Vogelstein, M. Nowak, Nature Communications 8 (2017).
date_created: 2018-12-11T11:50:02Z
date_published: 2017-01-31T00:00:00Z
date_updated: 2025-07-10T11:50:00Z
day: '31'
ddc:
- '004'
- '006'
department:
- _id: KrCh
doi: 10.1038/ncomms14114
ec_funded: 1
external_id:
isi:
- '000393096600001'
file:
- access_level: open_access
content_type: application/pdf
creator: system
date_created: 2018-12-12T10:15:15Z
date_updated: 2018-12-12T10:15:15Z
file_id: '5133'
file_name: IST-2017-786-v1+1_ncomms14114.pdf
file_size: 897050
relation: main_file
file_date_updated: 2018-12-12T10:15:15Z
has_accepted_license: '1'
intvolume: ' 8'
isi: 1
language:
- iso: eng
month: '01'
oa: 1
oa_version: Published Version
project:
- _id: 2581B60A-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '279307'
name: 'Quantitative Graph Games: Theory and Applications'
- _id: 2584A770-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: P 23499-N23
name: Modern Graph Algorithmic Techniques in Formal Verification
- _id: 25863FF4-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: S11407
name: Game Theory
publication: Nature Communications
publication_identifier:
issn:
- 2041-1723
publication_status: published
publisher: Nature Publishing Group
publist_id: '6301'
pubrep_id: '786'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Reconstructing metastatic seeding patterns of human cancers
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: 8
year: '2017'
...
---
_id: '313'
abstract:
- lang: eng
text: 'Tunneling of a particle through a potential barrier remains one of the most
remarkable quantum phenomena. Owing to advances in laser technology, electric
fields comparable to those electrons experience in atoms are readily generated
and open opportunities to dynamically investigate the process of electron tunneling
through the potential barrier formed by the superposition of both laser and atomic
fields. Attosecond-time and angstrom-space resolution of the strong laser-field
technique allow to address fundamental questions related to tunneling, which are
still open and debated: Which time is spent under the barrier and what momentum
is picked up by the particle in the meantime? In this combined experimental and
theoretical study we demonstrate that for strong-field ionization the leading
quantum mechanical Wigner treatment for the time resolved description of tunneling
is valid. We achieve a high sensitivity on the tunneling barrier and unambiguously
isolate its effects by performing a differential study of two systems with almost
identical tunneling geometry. Moreover, working with a low frequency laser, we
essentially limit the non-adiabaticity of the process as a major source of uncertainty.
The agreement between experiment and theory implies two substantial corrections
with respect to the widely employed quasiclassical treatment: In addition to a
non-vanishing longitudinal momentum along the laser field-direction we provide
clear evidence for a non-zero tunneling time delay. This addresses also the fundamental
question how the transition occurs from the tunnel barrier to free space classical
evolution of the ejected electron.'
alternative_title:
- 'Journal of Physics: Conference Series'
article_number: '012004'
article_processing_charge: No
arxiv: 1
author:
- first_name: Nicolas
full_name: Camus, Nicolas
last_name: Camus
- first_name: Enderalp
full_name: Yakaboylu, Enderalp
id: 38CB71F6-F248-11E8-B48F-1D18A9856A87
last_name: Yakaboylu
orcid: 0000-0001-5973-0874
- first_name: Lutz
full_name: Fechner, Lutz
last_name: Fechner
- first_name: Michael
full_name: Klaiber, Michael
last_name: Klaiber
- first_name: Martin
full_name: Laux, Martin
last_name: Laux
- first_name: Yonghao
full_name: Mi, Yonghao
last_name: Mi
- first_name: Karen
full_name: Hatsagortsyan, Karen
last_name: Hatsagortsyan
- first_name: Thomas
full_name: Pfeifer, Thomas
last_name: Pfeifer
- first_name: Cristoph
full_name: Keitel, Cristoph
last_name: Keitel
- first_name: Robert
full_name: Moshammer, Robert
last_name: Moshammer
citation:
ama: 'Camus N, Yakaboylu E, Fechner L, et al. Experimental evidence for Wigner’s
tunneling time. In: Vol 999. American Physical Society; 2017. doi:10.1088/1742-6596/999/1/012004'
apa: 'Camus, N., Yakaboylu, E., Fechner, L., Klaiber, M., Laux, M., Mi, Y., … Moshammer,
R. (2017). Experimental evidence for Wigner’s tunneling time (Vol. 999). Presented
at the Annual International Laser Physics Workshop LPHYS, Kazan, Russian Federation:
American Physical Society. https://doi.org/10.1088/1742-6596/999/1/012004'
chicago: Camus, Nicolas, Enderalp Yakaboylu, Lutz Fechner, Michael Klaiber, Martin
Laux, Yonghao Mi, Karen Hatsagortsyan, Thomas Pfeifer, Cristoph Keitel, and Robert
Moshammer. “Experimental Evidence for Wigner’s Tunneling Time,” Vol. 999. American
Physical Society, 2017. https://doi.org/10.1088/1742-6596/999/1/012004.
ieee: N. Camus et al., “Experimental evidence for Wigner’s tunneling time,”
presented at the Annual International Laser Physics Workshop LPHYS, Kazan, Russian
Federation, 2017, vol. 999, no. 1.
ista: 'Camus N, Yakaboylu E, Fechner L, Klaiber M, Laux M, Mi Y, Hatsagortsyan K,
Pfeifer T, Keitel C, Moshammer R. 2017. Experimental evidence for Wigner’s tunneling
time. Annual International Laser Physics Workshop LPHYS, Journal of Physics: Conference
Series, vol. 999, 012004.'
mla: Camus, Nicolas, et al. Experimental Evidence for Wigner’s Tunneling Time.
Vol. 999, no. 1, 012004, American Physical Society, 2017, doi:10.1088/1742-6596/999/1/012004.
short: N. Camus, E. Yakaboylu, L. Fechner, M. Klaiber, M. Laux, Y. Mi, K. Hatsagortsyan,
T. Pfeifer, C. Keitel, R. Moshammer, in:, American Physical Society, 2017.
conference:
end_date: 2017-08-21
location: Kazan, Russian Federation
name: Annual International Laser Physics Workshop LPHYS
start_date: 2017-08-17
date_created: 2018-12-11T11:45:46Z
date_published: 2017-07-14T00:00:00Z
date_updated: 2025-09-18T10:29:07Z
day: '14'
ddc:
- '530'
department:
- _id: MiLe
doi: 10.1088/1742-6596/999/1/012004
external_id:
arxiv:
- '1611.03701'
isi:
- '000432427200004'
file:
- access_level: open_access
checksum: 6e70b525a84f6d5fb175c48e9f5cb59a
content_type: application/pdf
creator: dernst
date_created: 2019-01-22T08:34:10Z
date_updated: 2020-07-14T12:46:00Z
file_id: '5871'
file_name: 2017_Physics_Camus.pdf
file_size: 949321
relation: main_file
file_date_updated: 2020-07-14T12:46:00Z
has_accepted_license: '1'
intvolume: ' 999'
isi: 1
issue: '1'
language:
- iso: eng
month: '07'
oa: 1
oa_version: Published Version
publication_identifier:
issn:
- 1742-6588
publication_status: published
publisher: American Physical Society
publist_id: '7552'
quality_controlled: '1'
related_material:
record:
- id: '6013'
relation: later_version
status: public
scopus_import: '1'
status: public
title: Experimental evidence for Wigner's tunneling time
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: conference
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 999
year: '2017'
...
---
_id: '373'
abstract:
- lang: eng
text: 'This review captures the synthesis, assembly, properties, and applications
of copper chalcogenide NCs, which have achieved significant research interest
in the last decade due to their compositional and structural versatility. The
outstanding functional properties of these materials stems from the relationship
between their band structure and defect concentration, including charge carrier
concentration and electronic conductivity character, which consequently affects
their optoelectronic, optical, and plasmonic properties. This, combined with several
metastable crystal phases and stoichiometries and the low energy of formation
of defects, makes the reproducible synthesis of these materials, with tunable
parameters, remarkable. Further to this, the review captures the progress of the
hierarchical assembly of these NCs, which bridges the link between their discrete
and collective properties. Their ubiquitous application set has cross-cut energy
conversion (photovoltaics, photocatalysis, thermoelectrics), energy storage (lithium-ion
batteries, hydrogen generation), emissive materials (plasmonics, LEDs, biolabelling),
sensors (electrochemical, biochemical), biomedical devices (magnetic resonance
imaging, X-ray computer tomography), and medical therapies (photochemothermal
therapies, immunotherapy, radiotherapy, and drug delivery). The confluence of
advances in the synthesis, assembly, and application of these NCs in the past
decade has the potential to significantly impact society, both economically and
environmentally. '
acknowledgement: C.C. and K.M.R. gratefully acknowledge support from Science Foundation
Ireland (SFI) under the Principal Investigator Program under Contract No. 11PI-1148.
This work was conducted under the framework of the Irish Government’s Programme
for Research in Third Level Institutions Cycle 5, National Development Plan 2007−2013
with the assistance of the European Regional Development Fund. A.S. gratefully acknowledges
Director’s Postdoctoral Fellowship support from the Los Alamos National Laboratory.
M.I., O.D., and A.C. gratefully acknowledge support from the European Regional Development
Funds and the Spanish MINECO Project BOOSTER (ENE2013-46624-C4-3-R). M.I. and O.D.
thank AGAUR for their Beatriu de Pinós postdoctoral grant (2013 BP-A00344) and Ph.D.
grant (2015 FI-B00810, 2016 FI-B100067), respectively.
article_processing_charge: No
article_type: review
author:
- first_name: Claudia
full_name: Coughlan, Claudia
last_name: Coughlan
- first_name: Maria
full_name: Ibanez Sabate, Maria
id: 43C61214-F248-11E8-B48F-1D18A9856A87
last_name: Ibanez Sabate
orcid: 0000-0001-5013-2843
- first_name: Oleksandr
full_name: Dobrozhan, Oleksandr
last_name: Dobrozhan
- first_name: Ajay
full_name: Singh, Ajay
last_name: Singh
- first_name: Andreu
full_name: Cabot, Andreu
last_name: Cabot
- first_name: Kevin
full_name: Ryan, Kevin
last_name: Ryan
citation:
ama: Coughlan C, Ibáñez M, Dobrozhan O, Singh A, Cabot A, Ryan K. Compound copper
chalcogenide nanocrystals. Chemical Reviews. 2017;117(9):5865-6109. doi:10.1021/acs.chemrev.6b00376
apa: Coughlan, C., Ibáñez, M., Dobrozhan, O., Singh, A., Cabot, A., & Ryan,
K. (2017). Compound copper chalcogenide nanocrystals. Chemical Reviews.
American Chemical Society. https://doi.org/10.1021/acs.chemrev.6b00376
chicago: Coughlan, Claudia, Maria Ibáñez, Oleksandr Dobrozhan, Ajay Singh, Andreu
Cabot, and Kevin Ryan. “Compound Copper Chalcogenide Nanocrystals.” Chemical
Reviews. American Chemical Society, 2017. https://doi.org/10.1021/acs.chemrev.6b00376.
ieee: C. Coughlan, M. Ibáñez, O. Dobrozhan, A. Singh, A. Cabot, and K. Ryan, “Compound
copper chalcogenide nanocrystals,” Chemical Reviews, vol. 117, no. 9. American
Chemical Society, pp. 5865–6109, 2017.
ista: Coughlan C, Ibáñez M, Dobrozhan O, Singh A, Cabot A, Ryan K. 2017. Compound
copper chalcogenide nanocrystals. Chemical Reviews. 117(9), 5865–6109.
mla: Coughlan, Claudia, et al. “Compound Copper Chalcogenide Nanocrystals.” Chemical
Reviews, vol. 117, no. 9, American Chemical Society, 2017, pp. 5865–6109,
doi:10.1021/acs.chemrev.6b00376.
short: C. Coughlan, M. Ibáñez, O. Dobrozhan, A. Singh, A. Cabot, K. Ryan, Chemical
Reviews 117 (2017) 5865–6109.
date_created: 2018-12-11T11:46:06Z
date_published: 2017-04-10T00:00:00Z
date_updated: 2024-03-05T12:17:59Z
day: '10'
doi: 10.1021/acs.chemrev.6b00376
extern: '1'
external_id:
pmid:
- '28394585'
intvolume: ' 117'
issue: '9'
language:
- iso: eng
month: '04'
oa_version: None
page: 5865 - 6109
pmid: 1
publication: Chemical Reviews
publication_identifier:
eissn:
- 1520-6890
issn:
- 0009-2665
publication_status: published
publisher: American Chemical Society
publist_id: '7456'
quality_controlled: '1'
status: public
title: Compound copper chalcogenide nanocrystals
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 117
year: '2017'
...
---
_id: '374'
abstract:
- lang: eng
text: The conversion of thermal energy to electricity and vice versa by means of
solid state thermoelectric devices is extremely appealing. However, its cost-effectiveness
is seriously hampered by the relatively high production cost and low efficiency
of current thermoelectric materials and devices. To overcome present challenges
and enable a successful deployment of thermoelectric systems in their wide application
range, materials with significantly improved performance need to be developed.
Nanostructuration can help in several ways to reach the very particular group
of properties required to achieve high thermoelectric performances. Nanodomains
inserted within a crystalline matrix can provide large charge carrier concentrations
without strongly influencing their mobility, thus allowing to reach very high
electrical conductivities. Nanostructured materials contain numerous grain boundaries
that efficiently scatter mid- and long-wavelength phonons thus reducing the thermal
conductivity. Furthermore, nanocrystalline domains can enhance the Seebeck coefficient
by modifying the density of states and/or providing type- and energy-dependent
charge carrier scattering. All these advantages can only be reached when engineering
a complex type of material, nanocomposites, with exquisite control over structural
and chemical parameters at multiple length scales. Since current conventional
nanomaterial production technologies lack such level of control, alternative strategies
need to be developed and adjusted to the specifics of the field. A particularly
suitable approach to produce nanocomposites with unique level of control over
their structural and compositional parameters is their bottom-up engineering from
solution-processed nanoparticles. In this work, we review the state-of-the-art
of this technology applied to the thermoelectric field, including the synthesis
of nanoparticles of suitable materials with precisely engineered composition and
surface chemistry, their combination and consolidation into nanostructured materials,
the strategies to electronically dope such materials and the attempts to fabricate
thermoelectric devices using nanoparticle-based nanopowders and inks.
acknowledgement: This work was supported by the European Regional Development Funds,
the Spanish Ministerio de Econom?a y Competitividad through the projects BOOSTER
(ENE2013-46624-C4-3-R) and SEHTOP (ENE2016-77798-C4-3-R). S. O. thanks AGAUR her
PhD grant. Y. L. and Y. Z. thank the China Scholarship Council for scholarship support.
M. I. acknowledges financial support by ETH Carrier Seed Grant (SEED-18 16-2) and
M. V. K. acknowledges partial financial support by the European Union (EU) via FP7
ERC Starting Grant 2012 (Project NANOSOLID, GA No. 306733).
article_processing_charge: No
article_type: original
author:
- first_name: Silvia
full_name: Ortega, Silvia
last_name: Ortega
- first_name: Maria
full_name: Ibanez Sabate, Maria
id: 43C61214-F248-11E8-B48F-1D18A9856A87
last_name: Ibanez Sabate
orcid: 0000-0001-5013-2843
- first_name: Yu
full_name: Liu, Yu
id: 2A70014E-F248-11E8-B48F-1D18A9856A87
last_name: Liu
orcid: 0000-0001-7313-6740
- first_name: Yu
full_name: Zhang, Yu
last_name: Zhang
- first_name: Maksym
full_name: Kovalenko, Maksym
last_name: Kovalenko
- first_name: Doris
full_name: Cadavid, Doris
last_name: Cadavid
- first_name: Andreu
full_name: Cabot, Andreu
last_name: Cabot
citation:
ama: Ortega S, Ibáñez M, Liu Y, et al. Bottom up engineering of thermoelectric nanomaterials
and devices from solution processed nanoparticle building blocks. Chemical
Society Reviews. 2017;46(12):3510-3528. doi:10.1039/c6cs00567e
apa: Ortega, S., Ibáñez, M., Liu, Y., Zhang, Y., Kovalenko, M., Cadavid, D., &
Cabot, A. (2017). Bottom up engineering of thermoelectric nanomaterials and devices
from solution processed nanoparticle building blocks. Chemical Society Reviews.
Royal Society of Chemistry. https://doi.org/10.1039/c6cs00567e
chicago: Ortega, Silvia, Maria Ibáñez, Yu Liu, Yu Zhang, Maksym Kovalenko, Doris
Cadavid, and Andreu Cabot. “Bottom up Engineering of Thermoelectric Nanomaterials
and Devices from Solution Processed Nanoparticle Building Blocks.” Chemical
Society Reviews. Royal Society of Chemistry, 2017. https://doi.org/10.1039/c6cs00567e.
ieee: S. Ortega et al., “Bottom up engineering of thermoelectric nanomaterials
and devices from solution processed nanoparticle building blocks,” Chemical
Society Reviews, vol. 46, no. 12. Royal Society of Chemistry, pp. 3510–3528,
2017.
ista: Ortega S, Ibáñez M, Liu Y, Zhang Y, Kovalenko M, Cadavid D, Cabot A. 2017.
Bottom up engineering of thermoelectric nanomaterials and devices from solution
processed nanoparticle building blocks. Chemical Society Reviews. 46(12), 3510–3528.
mla: Ortega, Silvia, et al. “Bottom up Engineering of Thermoelectric Nanomaterials
and Devices from Solution Processed Nanoparticle Building Blocks.” Chemical
Society Reviews, vol. 46, no. 12, Royal Society of Chemistry, 2017, pp. 3510–28,
doi:10.1039/c6cs00567e.
short: S. Ortega, M. Ibáñez, Y. Liu, Y. Zhang, M. Kovalenko, D. Cadavid, A. Cabot,
Chemical Society Reviews 46 (2017) 3510–3528.
corr_author: '1'
date_created: 2018-12-11T11:46:06Z
date_published: 2017-06-21T00:00:00Z
date_updated: 2024-10-09T20:58:15Z
day: '21'
doi: 10.1039/c6cs00567e
extern: '1'
external_id:
pmid:
- '28470243'
intvolume: ' 46'
issue: '12'
language:
- iso: eng
month: '06'
oa_version: None
page: 3510 - 3528
pmid: 1
publication: Chemical Society Reviews
publication_identifier:
eissn:
- 1460-4744
issn:
- 0306-0012
publication_status: published
publisher: Royal Society of Chemistry
publist_id: '7454'
quality_controlled: '1'
status: public
title: Bottom up engineering of thermoelectric nanomaterials and devices from solution
processed nanoparticle building blocks
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 46
year: '2017'
...
---
_id: '375'
abstract:
- lang: eng
text: "Branched nanocrystals (NCs) enable high atomic surface exposure within a
crystalline network that provides avenues for charge transport. This combination
of properties makes branched NCs particularly suitable for a range of applications
where both interaction with the media and charge transport are involved. Herein
we report on the colloidal synthesis of branched ceria NCs by means of a ligand-mediated
overgrowth mechanism. In particular, the differential coverage of oleic acid as
an X-type ligand at ceria facets with different atomic density, atomic coordination
deficiency, and oxygen vacancy density resulted in a preferential growth in the
[111] direction and thus in the formation of ceria octapods. Alcohols, through
an esterification alcoholysis reaction, promoted faster growth rates that translated
into nanostructures with higher geometrical complexity, increasing the branch
aspect ratio and triggering the formation of side branches. On the other hand,
the presence of water resulted in a significant reduction of the growth rate,
decreasing the reaction yield and eliminating side branching, which we associate
to a blocking of the surface reaction sites or a displacement of the alcoholysis
reaction. Overall, adjusting the amounts of each chemical, well-defined branched
ceria NCs with tuned number, thickness, and length of branches and with overall
size ranging from 5 to 45 nm could be produced. We further demonstrate that such
branched ceria NCs are able to provide higher surface areas and related oxygen
storage capacities (OSC) than quasi-spherical NCs.\r\n\r\n"
acknowledgement: This work was supported by the European Regional Development Funds
and the Spanish MINECO project BOOSTER. T.B. is grateful for the FI-AGAUR Research
Fellowship Program, Generalitat de Catalunya (2015 FI_B 00744). P.G. acknowledges
the People Programme (Marie Curie Actions) of the FP7/2007-2013 European Union Program
(TECNIOspring Grant Agreement No. 600388) and the Agency for Business Competitiveness
of the Government of Catalonia, ACCIÓ. M.I. thanks AGAUR for Beatriu de Pinós postdoctoral
grant (2013 BP-A00344). Z.L. thanks the China Scholarship Council for scholarship
support.
article_processing_charge: No
article_type: original
author:
- first_name: Taisiia
full_name: Berestok, Taisiia
last_name: Berestok
- first_name: Pablo
full_name: Guardia, Pablo
last_name: Guardia
- first_name: Javier
full_name: Blanco, Javier
last_name: Blanco
- first_name: Raquel
full_name: Nafria, Raquel
last_name: Nafria
- first_name: Pau
full_name: Torruella, Pau
last_name: Torruella
- first_name: Luis
full_name: López Conesa, Luis
last_name: López Conesa
- first_name: Sònia
full_name: Estradé, Sònia
last_name: Estradé
- first_name: Maria
full_name: Ibanez Sabate, Maria
id: 43C61214-F248-11E8-B48F-1D18A9856A87
last_name: Ibanez Sabate
orcid: 0000-0001-5013-2843
- first_name: Jonathan
full_name: De Roo, Jonathan
last_name: De Roo
- first_name: Zhishan
full_name: Luo, Zhishan
last_name: Luo
- first_name: Doris
full_name: Cadavid, Doris
last_name: Cadavid
- first_name: José
full_name: Martins, José
last_name: Martins
- first_name: Maksym
full_name: Kovalenko, Maksym
last_name: Kovalenko
- first_name: Francesca
full_name: Peiró, Francesca
last_name: Peiró
- first_name: Andreu
full_name: Cabot, Andreu
last_name: Cabot
citation:
ama: Berestok T, Guardia P, Blanco J, et al. Tuning branching in ceria nanocrystals.
Chemistry of Materials. 2017;29(10):4418-4424. doi:10.1021/acs.chemmater.7b00896
apa: Berestok, T., Guardia, P., Blanco, J., Nafria, R., Torruella, P., López Conesa,
L., … Cabot, A. (2017). Tuning branching in ceria nanocrystals. Chemistry of
Materials. American Chemical Society. https://doi.org/10.1021/acs.chemmater.7b00896
chicago: Berestok, Taisiia, Pablo Guardia, Javier Blanco, Raquel Nafria, Pau Torruella,
Luis López Conesa, Sònia Estradé, et al. “Tuning Branching in Ceria Nanocrystals.”
Chemistry of Materials. American Chemical Society, 2017. https://doi.org/10.1021/acs.chemmater.7b00896.
ieee: T. Berestok et al., “Tuning branching in ceria nanocrystals,” Chemistry
of Materials, vol. 29, no. 10. American Chemical Society, pp. 4418–4424, 2017.
ista: Berestok T, Guardia P, Blanco J, Nafria R, Torruella P, López Conesa L, Estradé
S, Ibáñez M, De Roo J, Luo Z, Cadavid D, Martins J, Kovalenko M, Peiró F, Cabot
A. 2017. Tuning branching in ceria nanocrystals. Chemistry of Materials. 29(10),
4418–4424.
mla: Berestok, Taisiia, et al. “Tuning Branching in Ceria Nanocrystals.” Chemistry
of Materials, vol. 29, no. 10, American Chemical Society, 2017, pp. 4418–24,
doi:10.1021/acs.chemmater.7b00896.
short: T. Berestok, P. Guardia, J. Blanco, R. Nafria, P. Torruella, L. López Conesa,
S. Estradé, M. Ibáñez, J. De Roo, Z. Luo, D. Cadavid, J. Martins, M. Kovalenko,
F. Peiró, A. Cabot, Chemistry of Materials 29 (2017) 4418–4424.
date_created: 2018-12-11T11:46:07Z
date_published: 2017-04-24T00:00:00Z
date_updated: 2024-03-05T12:19:17Z
day: '24'
doi: 10.1021/acs.chemmater.7b00896
extern: '1'
intvolume: ' 29'
issue: '10'
language:
- iso: eng
month: '04'
oa_version: None
page: 4418 - 4424
publication: Chemistry of Materials
publication_identifier:
eissn:
- 1520-5002
issn:
- 0897-4756
publication_status: published
publisher: American Chemical Society
publist_id: '7455'
quality_controlled: '1'
status: public
title: Tuning branching in ceria nanocrystals
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 29
year: '2017'
...
---
DOAJ_listed: '1'
OA_place: publisher
OA_type: gold
_id: '391'
abstract:
- lang: eng
text: 'Three-dimensional topological insulators are bulk insulators with Z 2 topological
electronic order that gives rise to conducting light-like surface states. These
surface electrons are exceptionally resistant to localization by non-magnetic
disorder, and have been adopted as the basis for a wide range of proposals to
achieve new quasiparticle species and device functionality. Recent studies have
yielded a surprise by showing that in spite of resisting localization, topological
insulator surface electrons can be reshaped by defects into distinctive resonance
states. Here we use numerical simulations and scanning tunnelling microscopy data
to show that these resonance states have significance well beyond the localized
regime usually associated with impurity bands. At native densities in the model
Bi2X3 (X=Bi, Te) compounds, defect resonance states are predicted to generate
a new quantum basis for an emergent electron gas that supports diffusive electrical
transport. '
article_number: '14081'
article_processing_charge: No
author:
- first_name: Yishuai
full_name: Xu, Yishuai
last_name: Xu
- first_name: Janet
full_name: Chiu, Janet
last_name: Chiu
- first_name: Lin
full_name: Miao, Lin
last_name: Miao
- first_name: Haowei
full_name: He, Haowei
last_name: He
- first_name: Zhanybek
full_name: Alpichshev, Zhanybek
id: 45E67A2A-F248-11E8-B48F-1D18A9856A87
last_name: Alpichshev
orcid: 0000-0002-7183-5203
- first_name: Aharon
full_name: Kapitulnik, Aharon
last_name: Kapitulnik
- first_name: Rudro
full_name: Biswas, Rudro
last_name: Biswas
- first_name: Lewis
full_name: Wray, Lewis
last_name: Wray
citation:
ama: Xu Y, Chiu J, Miao L, et al. Disorder enabled band structure engineering of
a topological insulator surface. Nature Communications. 2017;8. doi:10.1038/ncomms14081
apa: Xu, Y., Chiu, J., Miao, L., He, H., Alpichshev, Z., Kapitulnik, A., … Wray,
L. (2017). Disorder enabled band structure engineering of a topological insulator
surface. Nature Communications. Springer Nature. https://doi.org/10.1038/ncomms14081
chicago: Xu, Yishuai, Janet Chiu, Lin Miao, Haowei He, Zhanybek Alpichshev, Aharon
Kapitulnik, Rudro Biswas, and Lewis Wray. “Disorder Enabled Band Structure Engineering
of a Topological Insulator Surface.” Nature Communications. Springer Nature,
2017. https://doi.org/10.1038/ncomms14081.
ieee: Y. Xu et al., “Disorder enabled band structure engineering of a topological
insulator surface,” Nature Communications, vol. 8. Springer Nature, 2017.
ista: Xu Y, Chiu J, Miao L, He H, Alpichshev Z, Kapitulnik A, Biswas R, Wray L.
2017. Disorder enabled band structure engineering of a topological insulator surface.
Nature Communications. 8, 14081.
mla: Xu, Yishuai, et al. “Disorder Enabled Band Structure Engineering of a Topological
Insulator Surface.” Nature Communications, vol. 8, 14081, Springer Nature,
2017, doi:10.1038/ncomms14081.
short: Y. Xu, J. Chiu, L. Miao, H. He, Z. Alpichshev, A. Kapitulnik, R. Biswas,
L. Wray, Nature Communications 8 (2017).
date_created: 2018-12-11T11:46:12Z
date_published: 2017-02-03T00:00:00Z
date_updated: 2025-07-08T15:09:23Z
day: '03'
doi: 10.1038/ncomms14081
extern: '1'
intvolume: ' 8'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1038/ncomms14081
month: '02'
oa: 1
oa_version: Published Version
publication: Nature Communications
publication_identifier:
eissn:
- 2041-1723
publication_status: published
publisher: Springer Nature
publist_id: '7438'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Disorder enabled band structure engineering of a topological insulator surface
type: journal_article
user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87
volume: 8
year: '2017'
...
---
OA_place: repository
OA_type: green
_id: '392'
abstract:
- lang: eng
text: We used femtosecond optical pump-probe spectroscopy to study the photoinduced
change in reflectivity of thin films of the electron-doped cuprate La2-xCexCuO4
(LCCO) with dopings of x=0.08 (underdoped) and x=0.11 (optimally doped). Above
Tc, we observe fluence-dependent relaxation rates that begin at a temperature
similar to the one where transport measurements first show signatures of antiferromagnetic
correlations. Upon suppressing superconductivity with a magnetic field, it is
found that the fluence and temperature dependence of relaxation rates are consistent
with bimolecular recombination of electrons and holes across a gap (2ΔAF) originating
from antiferromagnetic correlations which comprise the pseudogap in electron-doped
cuprates. This can be used to learn about coupling between electrons and high-energy
(ω>2ΔAF) excitations in these compounds and set limits on the time scales on
which antiferromagnetic correlations are static.
acknowledgement: Optical pump-probe work was supported by the Gordon and Betty Moore
Foundation's EPiQS initiative through Grant No. GBMF4540. Materials growth and characterization
was supported by AFOSR FA95501410332 and NSF DMR1410665.
article_number: '115125'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Inna
full_name: Vishik, Inna
last_name: Vishik
- first_name: Fahad
full_name: Mahmood, Fahad
last_name: Mahmood
- first_name: Zhanybek
full_name: Alpichshev, Zhanybek
id: 45E67A2A-F248-11E8-B48F-1D18A9856A87
last_name: Alpichshev
orcid: 0000-0002-7183-5203
- first_name: Nuh
full_name: Gedik, Nuh
last_name: Gedik
- first_name: Joshu
full_name: Higgins, Joshu
last_name: Higgins
- first_name: Richard
full_name: Greene, Richard
last_name: Greene
citation:
ama: Vishik I, Mahmood F, Alpichshev Z, Gedik N, Higgins J, Greene R. Ultrafast
dynamics in the presence of antiferromagnetic correlations in electron doped cuprate
La2 xCexCuO4±δ. Physical Review B. 2017;95(11). doi:10.1103/PhysRevB.95.115125
apa: Vishik, I., Mahmood, F., Alpichshev, Z., Gedik, N., Higgins, J., & Greene,
R. (2017). Ultrafast dynamics in the presence of antiferromagnetic correlations
in electron doped cuprate La2 xCexCuO4±δ. Physical Review B. American Physical
Society. https://doi.org/10.1103/PhysRevB.95.115125
chicago: Vishik, Inna, Fahad Mahmood, Zhanybek Alpichshev, Nuh Gedik, Joshu Higgins,
and Richard Greene. “Ultrafast Dynamics in the Presence of Antiferromagnetic Correlations
in Electron Doped Cuprate La2 XCexCuO4±δ.” Physical Review B. American
Physical Society, 2017. https://doi.org/10.1103/PhysRevB.95.115125.
ieee: I. Vishik, F. Mahmood, Z. Alpichshev, N. Gedik, J. Higgins, and R. Greene,
“Ultrafast dynamics in the presence of antiferromagnetic correlations in electron
doped cuprate La2 xCexCuO4±δ,” Physical Review B, vol. 95, no. 11. American
Physical Society, 2017.
ista: Vishik I, Mahmood F, Alpichshev Z, Gedik N, Higgins J, Greene R. 2017. Ultrafast
dynamics in the presence of antiferromagnetic correlations in electron doped cuprate
La2 xCexCuO4±δ. Physical Review B. 95(11), 115125.
mla: Vishik, Inna, et al. “Ultrafast Dynamics in the Presence of Antiferromagnetic
Correlations in Electron Doped Cuprate La2 XCexCuO4±δ.” Physical Review B,
vol. 95, no. 11, 115125, American Physical Society, 2017, doi:10.1103/PhysRevB.95.115125.
short: I. Vishik, F. Mahmood, Z. Alpichshev, N. Gedik, J. Higgins, R. Greene, Physical
Review B 95 (2017).
date_created: 2018-12-11T11:46:13Z
date_published: 2017-03-13T00:00:00Z
date_updated: 2026-05-06T06:56:15Z
day: '13'
doi: 10.1103/PhysRevB.95.115125
extern: '1'
external_id:
arxiv:
- '1601.06694'
intvolume: ' 95'
issue: '11'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: http://dspace.mit.edu/handle/1721.1/109835
month: '03'
oa: 1
oa_version: Preprint
publication: Physical Review B
publication_identifier:
eissn:
- 2469-9969
issnl:
- 2469-9950
publication_status: published
publisher: American Physical Society
publist_id: '7437'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Ultrafast dynamics in the presence of antiferromagnetic correlations in electron
doped cuprate La2 xCexCuO4±δ
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 95
year: '2017'
...
---
OA_place: repository
OA_type: green
_id: '393'
abstract:
- lang: eng
text: 'We use a three-pulse ultrafast optical spectroscopy to study the relaxation
processes in a frustrated Mott insulator Na2IrO3. By being able to independently
produce the out-of-equilibrium bound states (excitons) of doublons and holons
with the first pulse and suppress the underlying antiferromagnetic order with
the second one, we were able to elucidate the relaxation mechanism of quasiparticles
in this system. By observing the difference in the exciton dynamics in the magnetically
ordered and disordered phases we found that the mass of this quasiparticle is
mostly determined by its interaction with the surrounding spins. '
acknowledgement: Z.A. gratefully acknowledges discussions with P. A. Lee and A. Kemper.
A conversation with J. Zaanen was instrumental in clarifying the physical picture
described in this paper. We would also like to thank A. Kogar for thoroughly reading
the manuscript and making valuable comments. This work was supported by Army Research
Office Grant No. W911NF-15-1-0128 and Gordon and Betty Moore Foundation EPiQS Initiative
through Grant No. GBMF4540 (time resolved optical spectroscopy), Skoltech, as part
of the Skoltech NGP program (theory) and National Science Foundation Grant No. DMR-1265162
(material growth).
article_number: '235141 '
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Zhanybek
full_name: Alpichshev, Zhanybek
id: 45E67A2A-F248-11E8-B48F-1D18A9856A87
last_name: Alpichshev
orcid: 0000-0002-7183-5203
- first_name: Edbert
full_name: Sie, Edbert
last_name: Sie
- first_name: Fahad
full_name: Mahmood, Fahad
last_name: Mahmood
- first_name: Gang
full_name: Cao, Gang
last_name: Cao
- first_name: Nuh
full_name: Gedik, Nuh
last_name: Gedik
citation:
ama: Alpichshev Z, Sie E, Mahmood F, Cao G, Gedik N. Origin of the exciton mass
in the frustrated Mott insulator Na2IrO3. Physical Review B. 2017;96(23).
doi:10.1103/PhysRevB.96.235141
apa: Alpichshev, Z., Sie, E., Mahmood, F., Cao, G., & Gedik, N. (2017). Origin
of the exciton mass in the frustrated Mott insulator Na2IrO3. Physical Review
B. American Physical Society. https://doi.org/10.1103/PhysRevB.96.235141
chicago: Alpichshev, Zhanybek, Edbert Sie, Fahad Mahmood, Gang Cao, and Nuh Gedik.
“Origin of the Exciton Mass in the Frustrated Mott Insulator Na2IrO3.” Physical
Review B. American Physical Society, 2017. https://doi.org/10.1103/PhysRevB.96.235141.
ieee: Z. Alpichshev, E. Sie, F. Mahmood, G. Cao, and N. Gedik, “Origin of the exciton
mass in the frustrated Mott insulator Na2IrO3,” Physical Review B, vol.
96, no. 23. American Physical Society, 2017.
ista: Alpichshev Z, Sie E, Mahmood F, Cao G, Gedik N. 2017. Origin of the exciton
mass in the frustrated Mott insulator Na2IrO3. Physical Review B. 96(23), 235141.
mla: Alpichshev, Zhanybek, et al. “Origin of the Exciton Mass in the Frustrated
Mott Insulator Na2IrO3.” Physical Review B, vol. 96, no. 23, 235141, American
Physical Society, 2017, doi:10.1103/PhysRevB.96.235141.
short: Z. Alpichshev, E. Sie, F. Mahmood, G. Cao, N. Gedik, Physical Review B 96
(2017).
date_created: 2018-12-11T11:46:13Z
date_published: 2017-12-26T00:00:00Z
date_updated: 2026-04-29T06:27:39Z
day: '26'
doi: 10.1103/PhysRevB.96.235141
extern: '1'
external_id:
arxiv:
- '1610.09350'
intvolume: ' 96'
issue: '23'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: http://dspace.mit.edu/handle/1721.1/114259
month: '12'
oa: 1
oa_version: Submitted Version
publication: Physical Review B
publication_status: published
publisher: American Physical Society
publist_id: '7436'
quality_controlled: '1'
status: public
title: Origin of the exciton mass in the frustrated Mott insulator Na2IrO3
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 96
year: '2017'
...
---
_id: '424'
abstract:
- lang: eng
text: 'We show that very weak topological assumptions are enough to ensure the existence
of a Helly-type theorem. More precisely, we show that for any non-negative integers
b and d there exists an integer h(b, d) such that the following holds. If F is
a finite family of subsets of Rd such that βi(∩G)≤b for any G⊊F and every 0 ≤
i ≤ [d/2]-1 then F has Helly number at most h(b, d). Here βi denotes the reduced
Z2-Betti numbers (with singular homology). These topological conditions are sharp:
not controlling any of these [d/2] first Betti numbers allow for families with
unbounded Helly number. Our proofs combine homological non-embeddability results
with a Ramsey-based approach to build, given an arbitrary simplicial complex K,
some well-behaved chain map C*(K)→C*(Rd).'
article_processing_charge: No
arxiv: 1
author:
- first_name: Xavier
full_name: Goaoc, Xavier
last_name: Goaoc
- first_name: Pavel
full_name: Paták, Pavel
last_name: Paták
- first_name: Zuzana
full_name: Patakova, Zuzana
last_name: Patakova
orcid: 0000-0002-3975-1683
- first_name: Martin
full_name: Tancer, Martin
last_name: Tancer
orcid: 0000-0002-1191-6714
- first_name: Uli
full_name: Wagner, Uli
id: 36690CA2-F248-11E8-B48F-1D18A9856A87
last_name: Wagner
orcid: 0000-0002-1494-0568
citation:
ama: 'Goaoc X, Paták P, Patakova Z, Tancer M, Wagner U. Bounding helly numbers via
betti numbers. In: Loebl M, Nešetřil J, Thomas R, eds. A Journey through Discrete
Mathematics: A Tribute to Jiri Matousek. A Journey Through Discrete Mathematics.
Springer; 2017:407-447. doi:10.1007/978-3-319-44479-6_17'
apa: 'Goaoc, X., Paták, P., Patakova, Z., Tancer, M., & Wagner, U. (2017). Bounding
helly numbers via betti numbers. In M. Loebl, J. Nešetřil, & R. Thomas (Eds.),
A Journey through Discrete Mathematics: A Tribute to Jiri Matousek (pp.
407–447). Springer. https://doi.org/10.1007/978-3-319-44479-6_17'
chicago: 'Goaoc, Xavier, Pavel Paták, Zuzana Patakova, Martin Tancer, and Uli Wagner.
“Bounding Helly Numbers via Betti Numbers.” In A Journey through Discrete Mathematics:
A Tribute to Jiri Matousek, edited by Martin Loebl, Jaroslav Nešetřil, and
Robin Thomas, 407–47. A Journey Through Discrete Mathematics. Springer, 2017.
https://doi.org/10.1007/978-3-319-44479-6_17.'
ieee: 'X. Goaoc, P. Paták, Z. Patakova, M. Tancer, and U. Wagner, “Bounding helly
numbers via betti numbers,” in A Journey through Discrete Mathematics: A Tribute
to Jiri Matousek, M. Loebl, J. Nešetřil, and R. Thomas, Eds. Springer, 2017,
pp. 407–447.'
ista: 'Goaoc X, Paták P, Patakova Z, Tancer M, Wagner U. 2017.Bounding helly numbers
via betti numbers. In: A Journey through Discrete Mathematics: A Tribute to Jiri
Matousek. , 407–447.'
mla: 'Goaoc, Xavier, et al. “Bounding Helly Numbers via Betti Numbers.” A Journey
through Discrete Mathematics: A Tribute to Jiri Matousek, edited by Martin
Loebl et al., Springer, 2017, pp. 407–47, doi:10.1007/978-3-319-44479-6_17.'
short: 'X. Goaoc, P. Paták, Z. Patakova, M. Tancer, U. Wagner, in:, M. Loebl, J.
Nešetřil, R. Thomas (Eds.), A Journey through Discrete Mathematics: A Tribute
to Jiri Matousek, Springer, 2017, pp. 407–447.'
date_created: 2018-12-11T11:46:24Z
date_published: 2017-10-06T00:00:00Z
date_updated: 2026-06-18T18:48:49Z
day: '06'
ddc:
- '500'
department:
- _id: UlWa
doi: 10.1007/978-3-319-44479-6_17
editor:
- first_name: Martin
full_name: Loebl, Martin
last_name: Loebl
- first_name: Jaroslav
full_name: Nešetřil, Jaroslav
last_name: Nešetřil
- first_name: Robin
full_name: Thomas, Robin
last_name: Thomas
external_id:
arxiv:
- '1310.4613'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1310.4613
month: '10'
oa: 1
oa_version: Published Version
page: 407 - 447
publication: 'A Journey through Discrete Mathematics: A Tribute to Jiri Matousek'
publication_identifier:
isbn:
- 978-331944479-6
publication_status: published
publisher: Springer
publist_id: '7399'
quality_controlled: '1'
related_material:
record:
- id: '1512'
relation: earlier_version
status: public
scopus_import: '1'
series_title: A Journey Through Discrete Mathematics
status: public
title: Bounding helly numbers via betti numbers
type: book_chapter
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2017'
...
---
_id: '431'
abstract:
- lang: eng
text: 'Parallel implementations of stochastic gradient descent (SGD) have received
significant research attention, thanks to its excellent scalability properties.
A fundamental barrier when parallelizing SGD is the high bandwidth cost of communicating
gradient updates between nodes; consequently, several lossy compresion heuristics
have been proposed, by which nodes only communicate quantized gradients. Although
effective in practice, these heuristics do not always converge. In this paper,
we propose Quantized SGD (QSGD), a family of compression schemes with convergence
guarantees and good practical performance. QSGD allows the user to smoothly trade
off communication bandwidth and convergence time: nodes can adjust the number
of bits sent per iteration, at the cost of possibly higher variance. We show that
this trade-off is inherent, in the sense that improving it past some threshold
would violate information-theoretic lower bounds. QSGD guarantees convergence
for convex and non-convex objectives, under asynchrony, and can be extended to
stochastic variance-reduced techniques. When applied to training deep neural networks
for image classification and automated speech recognition, QSGD leads to significant
reductions in end-to-end training time. For instance, on 16GPUs, we can train
the ResNet-152 network to full accuracy on ImageNet 1.8 × faster than the full-precision
variant. '
alternative_title:
- Advances in Neural Information Processing Systems
article_processing_charge: No
arxiv: 1
author:
- first_name: Dan-Adrian
full_name: Alistarh, Dan-Adrian
id: 4A899BFC-F248-11E8-B48F-1D18A9856A87
last_name: Alistarh
orcid: 0000-0003-3650-940X
- first_name: Demjan
full_name: Grubic, Demjan
last_name: Grubic
- first_name: Jerry
full_name: Li, Jerry
last_name: Li
- first_name: Ryota
full_name: Tomioka, Ryota
last_name: Tomioka
- first_name: Milan
full_name: Vojnović, Milan
last_name: Vojnović
citation:
ama: 'Alistarh D-A, Grubic D, Li J, Tomioka R, Vojnović M. QSGD: Communication-efficient
SGD via gradient quantization and encoding. In: Vol 2017. Neural Information Processing
Systems Foundation; 2017:1710-1721.'
apa: 'Alistarh, D.-A., Grubic, D., Li, J., Tomioka, R., & Vojnović, M. (2017).
QSGD: Communication-efficient SGD via gradient quantization and encoding (Vol.
2017, pp. 1710–1721). Presented at the NIPS: Neural Information Processing System,
Long Beach, CA, United States: Neural Information Processing Systems Foundation.'
chicago: 'Alistarh, Dan-Adrian, Demjan Grubic, Jerry Li, Ryota Tomioka, and Milan
Vojnović. “QSGD: Communication-Efficient SGD via Gradient Quantization and Encoding,”
2017:1710–21. Neural Information Processing Systems Foundation, 2017.'
ieee: 'D.-A. Alistarh, D. Grubic, J. Li, R. Tomioka, and M. Vojnović, “QSGD: Communication-efficient
SGD via gradient quantization and encoding,” presented at the NIPS: Neural Information
Processing System, Long Beach, CA, United States, 2017, vol. 2017, pp. 1710–1721.'
ista: 'Alistarh D-A, Grubic D, Li J, Tomioka R, Vojnović M. 2017. QSGD: Communication-efficient
SGD via gradient quantization and encoding. NIPS: Neural Information Processing
System, Advances in Neural Information Processing Systems, vol. 2017, 1710–1721.'
mla: 'Alistarh, Dan-Adrian, et al. QSGD: Communication-Efficient SGD via Gradient
Quantization and Encoding. Vol. 2017, Neural Information Processing Systems
Foundation, 2017, pp. 1710–21.'
short: D.-A. Alistarh, D. Grubic, J. Li, R. Tomioka, M. Vojnović, in:, Neural Information
Processing Systems Foundation, 2017, pp. 1710–1721.
conference:
end_date: 2017-12-09
location: Long Beach, CA, United States
name: 'NIPS: Neural Information Processing System'
start_date: 2017-12-04
corr_author: '1'
date_created: 2018-12-11T11:46:26Z
date_published: 2017-01-01T00:00:00Z
date_updated: 2025-09-18T10:07:20Z
day: '01'
department:
- _id: DaAl
external_id:
arxiv:
- '1610.02132'
isi:
- '000452649401072'
intvolume: ' 2017'
isi: 1
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1610.02132
month: '01'
oa: 1
oa_version: Submitted Version
page: 1710-1721
publication_identifier:
issn:
- 1049-5258
publication_status: published
publisher: Neural Information Processing Systems Foundation
publist_id: '7392'
quality_controlled: '1'
status: public
title: 'QSGD: Communication-efficient SGD via gradient quantization and encoding'
type: conference
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 2017
year: '2017'
...
---
_id: '432'
abstract:
- lang: eng
text: 'Recently there has been significant interest in training machine-learning
models at low precision: by reducing precision, one can reduce computation and
communication by one order of magnitude. We examine training at reduced precision,
both from a theoretical and practical perspective, and ask: is it possible to
train models at end-to-end low precision with provable guarantees? Can this lead
to consistent order-of-magnitude speedups? We mainly focus on linear models, and
the answer is yes for linear models. We develop a simple framework called ZipML
based on one simple but novel strategy called double sampling. Our ZipML framework
is able to execute training at low precision with no bias, guaranteeing convergence,
whereas naive quanti- zation would introduce significant bias. We val- idate our
framework across a range of applica- tions, and show that it enables an FPGA proto-
type that is up to 6.5 × faster than an implemen- tation using full 32-bit precision.
We further de- velop a variance-optimal stochastic quantization strategy and show
that it can make a significant difference in a variety of settings. When applied
to linear models together with double sampling, we save up to another 1.7 × in
data movement compared with uniform quantization. When training deep networks
with quantized models, we achieve higher accuracy than the state-of-the- art XNOR-Net. '
alternative_title:
- PMLR Press
article_processing_charge: No
author:
- first_name: Hantian
full_name: Zhang, Hantian
last_name: Zhang
- first_name: Jerry
full_name: Li, Jerry
last_name: Li
- first_name: Kaan
full_name: Kara, Kaan
last_name: Kara
- first_name: Dan-Adrian
full_name: Alistarh, Dan-Adrian
id: 4A899BFC-F248-11E8-B48F-1D18A9856A87
last_name: Alistarh
orcid: 0000-0003-3650-940X
- first_name: Ji
full_name: Liu, Ji
last_name: Liu
- first_name: Ce
full_name: Zhang, Ce
last_name: Zhang
citation:
ama: 'Zhang H, Li J, Kara K, Alistarh D-A, Liu J, Zhang C. ZipML: Training linear
models with end-to-end low precision, and a little bit of deep learning. In: Proceedings
of Machine Learning Research. Vol 70. ML Research Press; 2017:4035-4043.'
apa: 'Zhang, H., Li, J., Kara, K., Alistarh, D.-A., Liu, J., & Zhang, C. (2017).
ZipML: Training linear models with end-to-end low precision, and a little bit
of deep learning. In Proceedings of Machine Learning Research (Vol. 70,
pp. 4035–4043). Sydney, Australia: ML Research Press.'
chicago: 'Zhang, Hantian, Jerry Li, Kaan Kara, Dan-Adrian Alistarh, Ji Liu, and
Ce Zhang. “ZipML: Training Linear Models with End-to-End Low Precision, and a
Little Bit of Deep Learning.” In Proceedings of Machine Learning Research,
70:4035–43. ML Research Press, 2017.'
ieee: 'H. Zhang, J. Li, K. Kara, D.-A. Alistarh, J. Liu, and C. Zhang, “ZipML: Training
linear models with end-to-end low precision, and a little bit of deep learning,”
in Proceedings of Machine Learning Research, Sydney, Australia, 2017, vol.
70, pp. 4035–4043.'
ista: 'Zhang H, Li J, Kara K, Alistarh D-A, Liu J, Zhang C. 2017. ZipML: Training
linear models with end-to-end low precision, and a little bit of deep learning.
Proceedings of Machine Learning Research. ICML: International Conference on Machine
Learning, PMLR Press, vol. 70, 4035–4043.'
mla: 'Zhang, Hantian, et al. “ZipML: Training Linear Models with End-to-End Low
Precision, and a Little Bit of Deep Learning.” Proceedings of Machine Learning
Research, vol. 70, ML Research Press, 2017, pp. 4035–43.'
short: H. Zhang, J. Li, K. Kara, D.-A. Alistarh, J. Liu, C. Zhang, in:, Proceedings
of Machine Learning Research, ML Research Press, 2017, pp. 4035–4043.
conference:
end_date: 2017-08-11
location: Sydney, Australia
name: 'ICML: International Conference on Machine Learning'
start_date: 2017-08-06
corr_author: '1'
date_created: 2018-12-11T11:46:26Z
date_published: 2017-01-01T00:00:00Z
date_updated: 2025-09-18T10:06:02Z
day: '01'
ddc:
- '000'
department:
- _id: DaAl
external_id:
isi:
- '000683309504015'
file:
- access_level: open_access
checksum: 86156ba7f4318e47cef3eb9092593c10
content_type: application/pdf
creator: dernst
date_created: 2019-01-22T08:23:58Z
date_updated: 2020-07-14T12:46:26Z
file_id: '5869'
file_name: 2017_ICML_Zhang.pdf
file_size: 849345
relation: main_file
file_date_updated: 2020-07-14T12:46:26Z
has_accepted_license: '1'
isi: 1
language:
- iso: eng
month: '01'
oa: 1
oa_version: Submitted Version
page: 4035 - 4043
publication: Proceedings of Machine Learning Research
publication_identifier:
isbn:
- 978-151085514-4
publication_status: published
publisher: ML Research Press
publist_id: '7391'
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'ZipML: Training linear models with end-to-end low precision, and a little
bit of deep learning'
type: conference
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: ' 70'
year: '2017'
...
---
_id: '17616'
abstract:
- lang: eng
text: The optical and UV emission from sub-parsec massive black hole binaries (MBHBs)
in active galactic nuclei (AGNs) is believed to vary periodically, on time-scales
comparable to the binary's orbital time. If driven by accretion rate fluctuations,
the variability could be isotropic. If dominated by relativistic Doppler modulation,
the variability should instead be anisotropic, resembling a rotating forward-beamed
lighthouse. We consider the infrared (IR) reverberation of either type of periodic
emission by pc-scale circumbinary dust tori. We predict the phase and amplitude
of IR variability as a function of the ratio of dust light crossing time to the
source variability period, and of the torus inclination and opening angle. We
enumerate several differences between the isotropic and anisotropic cases. Interestingly,
for a nearly face-on binary with an inclined dust torus, the Doppler boost can
produce IR variability without any observable optical/UV variability. Such orphan-IR
variability would have been missed in optical searches for periodic AGNs. We apply
our models to time-domain WISE IR data from the MBHB candidate PG 1302−102 and
find consistency with dust reverberation by both isotropically emitting and Doppler-boosted
sources in the shorter wavelength W1–W2 (2.8 → 5.3 μm) bands. We constrain the
dust torus to be thin (aspect ratio ∼ 0.1), with an inner radius at 1–5 pc. More
generally, our dust-echo models will aid in identifying new MBHB candidates, determining
their nature and constraining the physical properties of MBHBs and their dust
tori.
article_processing_charge: No
article_type: original
author:
- first_name: Daniel J.
full_name: D'Orazio, Daniel J.
last_name: D'Orazio
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
citation:
ama: 'D’Orazio DJ, Haiman Z. Lighthouse in the dust: infrared echoes of periodic
emission from massive black hole binaries★. Monthly Notices of the Royal Astronomical
Society. 2017;470(1):1198-1217. doi:10.1093/mnras/stx1269'
apa: 'D’Orazio, D. J., & Haiman, Z. (2017). Lighthouse in the dust: infrared
echoes of periodic emission from massive black hole binaries★. Monthly Notices
of the Royal Astronomical Society. Oxford University Press. https://doi.org/10.1093/mnras/stx1269'
chicago: 'D’Orazio, Daniel J., and Zoltán Haiman. “Lighthouse in the Dust: Infrared
Echoes of Periodic Emission from Massive Black Hole Binaries★.” Monthly Notices
of the Royal Astronomical Society. Oxford University Press, 2017. https://doi.org/10.1093/mnras/stx1269.'
ieee: 'D. J. D’Orazio and Z. Haiman, “Lighthouse in the dust: infrared echoes of
periodic emission from massive black hole binaries★,” Monthly Notices of the
Royal Astronomical Society, vol. 470, no. 1. Oxford University Press, pp.
1198–1217, 2017.'
ista: 'D’Orazio DJ, Haiman Z. 2017. Lighthouse in the dust: infrared echoes of periodic
emission from massive black hole binaries★. Monthly Notices of the Royal Astronomical
Society. 470(1), 1198–1217.'
mla: 'D’Orazio, Daniel J., and Zoltán Haiman. “Lighthouse in the Dust: Infrared
Echoes of Periodic Emission from Massive Black Hole Binaries★.” Monthly Notices
of the Royal Astronomical Society, vol. 470, no. 1, Oxford University Press,
2017, pp. 1198–217, doi:10.1093/mnras/stx1269.'
short: D.J. D’Orazio, Z. Haiman, Monthly Notices of the Royal Astronomical Society
470 (2017) 1198–1217.
date_created: 2024-09-05T13:32:36Z
date_published: 2017-05-23T00:00:00Z
date_updated: 2024-09-24T08:01:52Z
day: '23'
doi: 10.1093/mnras/stx1269
extern: '1'
intvolume: ' 470'
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1093/mnras/stx1269
month: '05'
oa: 1
oa_version: Published Version
page: 1198-1217
publication: Monthly Notices of the Royal Astronomical Society
publication_identifier:
issn:
- 0035-8711
- 1365-2966
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Lighthouse in the dust: infrared echoes of periodic emission from massive
black hole binaries★'
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 470
year: '2017'
...
---
_id: '17629'
abstract:
- lang: eng
text: We propose an observational test for gravitationally recoiling supermassive
black holes in active galactic nuclei, based on a positive correlation between
the velocities of black holes relative to their host galaxies, |Δv|, and their
obscuring dust column densities, Σdust, both measured along the line of sight.
Our findings using a set of toy models implemented to a Monte Carlo simulation
imply that models of the galactic centre and of recoil dynamics can be tested
by future observations of the potential Σdust–|Δv| correlation. We have also found
that the fraction of obscured quasars decreases with |Δv|, for which the predicted
trend can be compared to the observed fraction of type II quasars, and can further
test combinations of models we may implement.
article_processing_charge: No
article_type: original
author:
- first_name: P.
full_name: Raffai, P.
last_name: Raffai
- first_name: B.
full_name: Bécsy, B.
last_name: Bécsy
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
- first_name: Z.
full_name: Frei, Z.
last_name: Frei
citation:
ama: Raffai P, Bécsy B, Haiman Z, Frei Z. A statistical method for detecting gravitational
recoils of supermassive black holes in active galactic nuclei. Proceedings
of the International Astronomical Union. 2017;12(S324):227-230. doi:10.1017/s1743921317000734
apa: Raffai, P., Bécsy, B., Haiman, Z., & Frei, Z. (2017). A statistical method
for detecting gravitational recoils of supermassive black holes in active galactic
nuclei. Proceedings of the International Astronomical Union. Cambridge
University Press. https://doi.org/10.1017/s1743921317000734
chicago: Raffai, P., B. Bécsy, Zoltán Haiman, and Z. Frei. “A Statistical Method
for Detecting Gravitational Recoils of Supermassive Black Holes in Active Galactic
Nuclei.” Proceedings of the International Astronomical Union. Cambridge
University Press, 2017. https://doi.org/10.1017/s1743921317000734.
ieee: P. Raffai, B. Bécsy, Z. Haiman, and Z. Frei, “A statistical method for detecting
gravitational recoils of supermassive black holes in active galactic nuclei,”
Proceedings of the International Astronomical Union, vol. 12, no. S324.
Cambridge University Press, pp. 227–230, 2017.
ista: Raffai P, Bécsy B, Haiman Z, Frei Z. 2017. A statistical method for detecting
gravitational recoils of supermassive black holes in active galactic nuclei. Proceedings
of the International Astronomical Union. 12(S324), 227–230.
mla: Raffai, P., et al. “A Statistical Method for Detecting Gravitational Recoils
of Supermassive Black Holes in Active Galactic Nuclei.” Proceedings of the
International Astronomical Union, vol. 12, no. S324, Cambridge University
Press, 2017, pp. 227–30, doi:10.1017/s1743921317000734.
short: P. Raffai, B. Bécsy, Z. Haiman, Z. Frei, Proceedings of the International
Astronomical Union 12 (2017) 227–230.
date_created: 2024-09-05T13:58:38Z
date_published: 2017-06-23T00:00:00Z
date_updated: 2024-09-24T09:30:29Z
day: '23'
doi: 10.1017/s1743921317000734
extern: '1'
intvolume: ' 12'
issue: S324
language:
- iso: eng
main_file_link:
- url: https://doi.org/10.1017/s1743921317000734
month: '06'
oa_version: None
page: 227-230
publication: Proceedings of the International Astronomical Union
publication_identifier:
issn:
- 1743-9213
- 1743-9221
publication_status: published
publisher: Cambridge University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: A statistical method for detecting gravitational recoils of supermassive black
holes in active galactic nuclei
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 12
year: '2017'
...
---
_id: '17630'
abstract:
- lang: eng
text: In symmetric gravitating systems experiencing rapid mass-loss, particle orbits
change almost instantaneously, which can lead to the development of a sharply
contoured density profile, including singular caustics for collisionless systems.
This framework can be used to model a variety of dynamical systems, such as accretion
discs following a massive black hole merger and dwarf galaxies following violent
early star formation feedback. Particle interactions in the high-density peaks
seem a promising source of observable signatures of these mass-loss events (i.e.
a possible EM counterpart for black hole mergers or strong gamma-ray emission
from dark matter annihilation around young galaxies), because the interaction
rate depends on the square of the density. We study post-mass-loss density profiles,
both analytic and numerical, in idealized cases and present arguments and methods
to extend to any general system. An analytic derivation is presented for particles
on Keplerian orbits responding to a drop in the central mass. We argue that this
case, with initially circular orbits, gives the most sharply contoured profile
possible. We find that despite the presence of a set of singular caustics, the
total particle interaction rate is reduced compared to the unperturbed system;
this is a result of the overall expansion of the system dominating over the steep
caustics. Finally, we argue that this result holds more generally, and the loss
of central mass decreases the particle interaction rate in any physical system.
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Zephyr
full_name: Penoyre, Zephyr
last_name: Penoyre
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
citation:
ama: 'Penoyre Z, Haiman Z. A drop in the pond: The effect of rapid mass-loss on
the dynamics and interaction rate of collisionless particles. Monthly Notices
of the Royal Astronomical Society. 2017;473(1):498-512. doi:10.1093/mnras/stx2469'
apa: 'Penoyre, Z., & Haiman, Z. (2017). A drop in the pond: The effect of rapid
mass-loss on the dynamics and interaction rate of collisionless particles. Monthly
Notices of the Royal Astronomical Society. Oxford University Press. https://doi.org/10.1093/mnras/stx2469'
chicago: 'Penoyre, Zephyr, and Zoltán Haiman. “A Drop in the Pond: The Effect of
Rapid Mass-Loss on the Dynamics and Interaction Rate of Collisionless Particles.”
Monthly Notices of the Royal Astronomical Society. Oxford University Press,
2017. https://doi.org/10.1093/mnras/stx2469.'
ieee: 'Z. Penoyre and Z. Haiman, “A drop in the pond: The effect of rapid mass-loss
on the dynamics and interaction rate of collisionless particles,” Monthly Notices
of the Royal Astronomical Society, vol. 473, no. 1. Oxford University Press,
pp. 498–512, 2017.'
ista: 'Penoyre Z, Haiman Z. 2017. A drop in the pond: The effect of rapid mass-loss
on the dynamics and interaction rate of collisionless particles. Monthly Notices
of the Royal Astronomical Society. 473(1), 498–512.'
mla: 'Penoyre, Zephyr, and Zoltán Haiman. “A Drop in the Pond: The Effect of Rapid
Mass-Loss on the Dynamics and Interaction Rate of Collisionless Particles.” Monthly
Notices of the Royal Astronomical Society, vol. 473, no. 1, Oxford University
Press, 2017, pp. 498–512, doi:10.1093/mnras/stx2469.'
short: Z. Penoyre, Z. Haiman, Monthly Notices of the Royal Astronomical Society
473 (2017) 498–512.
date_created: 2024-09-05T13:59:48Z
date_published: 2017-09-25T00:00:00Z
date_updated: 2024-09-24T09:48:08Z
day: '25'
doi: 10.1093/mnras/stx2469
extern: '1'
external_id:
arxiv:
- '1709.08640'
intvolume: ' 473'
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: ' https://doi.org/10.48550/arXiv.1709.08640'
month: '09'
oa: 1
oa_version: Preprint
page: 498-512
publication: Monthly Notices of the Royal Astronomical Society
publication_identifier:
issn:
- 0035-8711
- 1365-2966
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'A drop in the pond: The effect of rapid mass-loss on the dynamics and interaction
rate of collisionless particles'
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 473
year: '2017'
...
---
_id: '17632'
abstract:
- lang: eng
text: 'We assess the contribution of dynamical hardening by direct three-body scattering
interactions to the rate of stellar-mass black hole binary (BHB) mergers in galactic
nuclei. We derive an analytic model for the single-binary encounter rate in a
nucleus with spherical and disc components hosting a super-massive black hole
(SMBH). We determine the total number of encounters NGW needed to harden a BHB
to the point that inspiral due to gravitational wave emission occurs before the
next three-body scattering event. This is done independently for both the spherical
and disc components. Using a Monte Carlo approach, we refine our calculations
for NGW to include gravitational wave emission between scattering events. For
astrophysically plausible models, we find that typically NGW ≲ 10. We find two
separate regimes for the efficient dynamical hardening of BHBs: (1) spherical
star clusters with high central densities, low-velocity dispersions, and no significant
Keplerian component and (2) migration traps in discs around SMBHs lacking any
significant spherical stellar component in the vicinity of the migration trap,
which is expected due to effective orbital inclination reduction of any spherical
population by the disc. We also find a weak correlation between the ratio of the
second-order velocity moment to velocity dispersion in galactic nuclei and the
rate of BHB mergers, where this ratio is a proxy for the ratio between the rotation-
and dispersion-supported components. Because discs enforce planar interactions
that are efficient in hardening BHBs, particularly in migration traps, they have
high merger rates that can contribute significantly to the rate of BHB mergers
detected by the advanced Laser Interferometer Gravitational-Wave Observatory.'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: N W C
full_name: Leigh, N W C
last_name: Leigh
- first_name: A M
full_name: Geller, A M
last_name: Geller
- first_name: B
full_name: McKernan, B
last_name: McKernan
- first_name: K E S
full_name: Ford, K E S
last_name: Ford
- first_name: M-M
full_name: Mac Low, M-M
last_name: Mac Low
- first_name: J
full_name: Bellovary, J
last_name: Bellovary
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
- first_name: W
full_name: Lyra, W
last_name: Lyra
- first_name: J
full_name: Samsing, J
last_name: Samsing
- first_name: M
full_name: O'Dowd, M
last_name: O'Dowd
- first_name: B
full_name: Kocsis, B
last_name: Kocsis
- first_name: S
full_name: Endlich, S
last_name: Endlich
citation:
ama: Leigh NWC, Geller AM, McKernan B, et al. On the rate of black hole binary mergers
in galactic nuclei due to dynamical hardening. Monthly Notices of the Royal
Astronomical Society. 2017;474(4):5672-5683. doi:10.1093/mnras/stx3134
apa: Leigh, N. W. C., Geller, A. M., McKernan, B., Ford, K. E. S., Mac Low, M.-M.,
Bellovary, J., … Endlich, S. (2017). On the rate of black hole binary mergers
in galactic nuclei due to dynamical hardening. Monthly Notices of the Royal
Astronomical Society. Oxford University Press. https://doi.org/10.1093/mnras/stx3134
chicago: Leigh, N W C, A M Geller, B McKernan, K E S Ford, M-M Mac Low, J Bellovary,
Zoltán Haiman, et al. “On the Rate of Black Hole Binary Mergers in Galactic Nuclei
Due to Dynamical Hardening.” Monthly Notices of the Royal Astronomical Society.
Oxford University Press, 2017. https://doi.org/10.1093/mnras/stx3134.
ieee: N. W. C. Leigh et al., “On the rate of black hole binary mergers in
galactic nuclei due to dynamical hardening,” Monthly Notices of the Royal Astronomical
Society, vol. 474, no. 4. Oxford University Press, pp. 5672–5683, 2017.
ista: Leigh NWC, Geller AM, McKernan B, Ford KES, Mac Low M-M, Bellovary J, Haiman
Z, Lyra W, Samsing J, O’Dowd M, Kocsis B, Endlich S. 2017. On the rate of black
hole binary mergers in galactic nuclei due to dynamical hardening. Monthly Notices
of the Royal Astronomical Society. 474(4), 5672–5683.
mla: Leigh, N. W. C., et al. “On the Rate of Black Hole Binary Mergers in Galactic
Nuclei Due to Dynamical Hardening.” Monthly Notices of the Royal Astronomical
Society, vol. 474, no. 4, Oxford University Press, 2017, pp. 5672–83, doi:10.1093/mnras/stx3134.
short: N.W.C. Leigh, A.M. Geller, B. McKernan, K.E.S. Ford, M.-M. Mac Low, J. Bellovary,
Z. Haiman, W. Lyra, J. Samsing, M. O’Dowd, B. Kocsis, S. Endlich, Monthly Notices
of the Royal Astronomical Society 474 (2017) 5672–5683.
date_created: 2024-09-05T14:16:03Z
date_published: 2017-12-05T00:00:00Z
date_updated: 2024-09-24T10:21:37Z
day: '05'
doi: 10.1093/mnras/stx3134
extern: '1'
external_id:
arxiv:
- '1711.10494'
intvolume: ' 474'
issue: '4'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: ' https://doi.org/10.48550/arXiv.1711.10494'
month: '12'
oa: 1
oa_version: Preprint
page: 5672-5683
publication: Monthly Notices of the Royal Astronomical Society
publication_identifier:
issn:
- 0035-8711
- 1365-2966
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: On the rate of black hole binary mergers in galactic nuclei due to dynamical
hardening
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 474
year: '2017'
...
---
_id: '17633'
abstract:
- lang: eng
text: 'Using few-body simulations, we investigate the evolution of supermassive
black holes (SMBHs) in galaxies (M* = 1010–1012 M⊙ at z = 0) at 0 < z < 4. Following
galaxy merger trees from the Millennium simulation, we model BH mergers with two
extreme binary decay scenarios for the ‘hard binary’ stage: a full or an empty
loss cone. These two models should bracket the true evolution, and allow us to
separately explore the role of dynamical friction and that of multibody BH interactions
on BH mergers. Using the computed merger rates, we infer the stochastic gravitational
wave background (GWB). Our dynamical approach is a first attempt to study the
dynamical evolution of multiple SMBHs in the host galaxies undergoing mergers
with various mass ratios (10−4 < q* < 1). Our main result demonstrates that SMBH
binaries are able to merge in both scenarios. In the empty loss cone case, we
find that BHs merge via multibody interactions, avoiding the ‘final parsec’ problem,
and entering the pulsar timing arrays band with substantial orbital eccentricity.
Our full loss cone treatment, albeit more approximate, suggests that the eccentricity
becomes even higher when GWs become dominant, leading to rapid coalescences (binary
lifetime ≲1 Gyr). Despite the lower merger rates in the empty loss cone case,
due to their higher mass ratios and lower redshifts, the GWB in the full/empty
loss cone models are comparable (0.70 × 10−15 and 0.53 × 10−15 at a frequency
of 1 yr−1, respectively). Finally, we compute the effects of high eccentricities
on the GWB spectrum.'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Taeho
full_name: Ryu, Taeho
last_name: Ryu
- first_name: Rosalba
full_name: Perna, Rosalba
last_name: Perna
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
- first_name: Jeremiah P.
full_name: Ostriker, Jeremiah P.
last_name: Ostriker
- first_name: Nicholas C.
full_name: Stone, Nicholas C.
last_name: Stone
citation:
ama: 'Ryu T, Perna R, Haiman Z, Ostriker JP, Stone NC. Interactions between multiple
supermassive black holes in galactic nuclei: A solution to the final parsec problem.
Monthly Notices of the Royal Astronomical Society. 2017;473(3):3410-3433.
doi:10.1093/mnras/stx2524'
apa: 'Ryu, T., Perna, R., Haiman, Z., Ostriker, J. P., & Stone, N. C. (2017).
Interactions between multiple supermassive black holes in galactic nuclei: A solution
to the final parsec problem. Monthly Notices of the Royal Astronomical Society.
Oxford University Press. https://doi.org/10.1093/mnras/stx2524'
chicago: 'Ryu, Taeho, Rosalba Perna, Zoltán Haiman, Jeremiah P. Ostriker, and Nicholas
C. Stone. “Interactions between Multiple Supermassive Black Holes in Galactic
Nuclei: A Solution to the Final Parsec Problem.” Monthly Notices of the Royal
Astronomical Society. Oxford University Press, 2017. https://doi.org/10.1093/mnras/stx2524.'
ieee: 'T. Ryu, R. Perna, Z. Haiman, J. P. Ostriker, and N. C. Stone, “Interactions
between multiple supermassive black holes in galactic nuclei: A solution to the
final parsec problem,” Monthly Notices of the Royal Astronomical Society,
vol. 473, no. 3. Oxford University Press, pp. 3410–3433, 2017.'
ista: 'Ryu T, Perna R, Haiman Z, Ostriker JP, Stone NC. 2017. Interactions between
multiple supermassive black holes in galactic nuclei: A solution to the final
parsec problem. Monthly Notices of the Royal Astronomical Society. 473(3), 3410–3433.'
mla: 'Ryu, Taeho, et al. “Interactions between Multiple Supermassive Black Holes
in Galactic Nuclei: A Solution to the Final Parsec Problem.” Monthly Notices
of the Royal Astronomical Society, vol. 473, no. 3, Oxford University Press,
2017, pp. 3410–33, doi:10.1093/mnras/stx2524.'
short: T. Ryu, R. Perna, Z. Haiman, J.P. Ostriker, N.C. Stone, Monthly Notices of
the Royal Astronomical Society 473 (2017) 3410–3433.
date_created: 2024-09-05T14:16:56Z
date_published: 2017-09-27T00:00:00Z
date_updated: 2024-09-24T11:14:57Z
day: '27'
doi: 10.1093/mnras/stx2524
extern: '1'
external_id:
arxiv:
- '1709.06501'
intvolume: ' 473'
issue: '3'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: ' https://doi.org/10.48550/arXiv.1709.06501'
month: '09'
oa: 1
oa_version: Preprint
page: 3410-3433
publication: Monthly Notices of the Royal Astronomical Society
publication_identifier:
issn:
- 0035-8711
- 1365-2966
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Interactions between multiple supermassive black holes in galactic nuclei:
A solution to the final parsec problem'
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 473
year: '2017'
...
---
_id: '17667'
abstract:
- lang: eng
text: The Direct Collapse Black Hole (DCBH) scenario provides a solution for forming
the massive black holes powering bright quasars observed in the early Universe.
A prerequisite for forming a DCBH is that the formation of (much less massive)
Population III stars be avoided - this can be achieved by destroying H2 via Lyman-Werner
(LW) radiation (ELW = 12.6 eV). We find that two conditions must be met in the
proto-galaxy that will host the DCBH. First, prior star formation must be delayed;
this can be achieved with a background LW flux of JBG≳100 J21. Second, an intense
burst of LW radiation from a neighbouring star-bursting proto-galaxy is required,
just before the gas cloud undergoes gravitational collapse, to finally suppress
star formation completely. We show here for the first time using high-resolution
hydrodynamical simulations, including full radiative transfer, that this low-level
background, combined with tight synchronisation and irradiation of a secondary
proto-galaxy by a primary proto-galaxy, inevitably moves the secondary proto-galaxy
onto the isothermal atomic cooling track, without the deleterious effects of either
photo-evaporating the gas or polluting it by heavy elements. These, atomically
cooled, massive proto-galaxies are expected to ultimately form a DCBH of mass
104−105M⊙.
article_number: '0075'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: John A.
full_name: Regan, John A.
last_name: Regan
- first_name: Eli
full_name: Visbal, Eli
last_name: Visbal
- first_name: John H.
full_name: Wise, John H.
last_name: Wise
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
- first_name: Peter H.
full_name: Johansson, Peter H.
last_name: Johansson
- first_name: Greg L.
full_name: Bryan, Greg L.
last_name: Bryan
citation:
ama: Regan JA, Visbal E, Wise JH, Haiman Z, Johansson PH, Bryan GL. Rapid formation
of massive black holes in close proximity to embryonic protogalaxies. Nature
Astronomy. 2017;1(4). doi:10.1038/s41550-017-0075
apa: Regan, J. A., Visbal, E., Wise, J. H., Haiman, Z., Johansson, P. H., &
Bryan, G. L. (2017). Rapid formation of massive black holes in close proximity
to embryonic protogalaxies. Nature Astronomy. Springer Science and Business
Media LLC. https://doi.org/10.1038/s41550-017-0075
chicago: Regan, John A., Eli Visbal, John H. Wise, Zoltán Haiman, Peter H. Johansson,
and Greg L. Bryan. “Rapid Formation of Massive Black Holes in Close Proximity
to Embryonic Protogalaxies.” Nature Astronomy. Springer Science and Business
Media LLC, 2017. https://doi.org/10.1038/s41550-017-0075.
ieee: J. A. Regan, E. Visbal, J. H. Wise, Z. Haiman, P. H. Johansson, and G. L.
Bryan, “Rapid formation of massive black holes in close proximity to embryonic
protogalaxies,” Nature Astronomy, vol. 1, no. 4. Springer Science and Business
Media LLC, 2017.
ista: Regan JA, Visbal E, Wise JH, Haiman Z, Johansson PH, Bryan GL. 2017. Rapid
formation of massive black holes in close proximity to embryonic protogalaxies.
Nature Astronomy. 1(4), 0075.
mla: Regan, John A., et al. “Rapid Formation of Massive Black Holes in Close Proximity
to Embryonic Protogalaxies.” Nature Astronomy, vol. 1, no. 4, 0075, Springer
Science and Business Media LLC, 2017, doi:10.1038/s41550-017-0075.
short: J.A. Regan, E. Visbal, J.H. Wise, Z. Haiman, P.H. Johansson, G.L. Bryan,
Nature Astronomy 1 (2017).
date_created: 2024-09-06T07:45:20Z
date_published: 2017-03-13T00:00:00Z
date_updated: 2024-09-25T07:54:31Z
day: '13'
doi: 10.1038/s41550-017-0075
extern: '1'
external_id:
arxiv:
- '1703.03805'
intvolume: ' 1'
issue: '4'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: ' https://doi.org/10.48550/arXiv.1703.03805'
month: '03'
oa: 1
oa_version: Preprint
publication: Nature Astronomy
publication_identifier:
issn:
- 2397-3366
publication_status: published
publisher: Springer Science and Business Media LLC
quality_controlled: '1'
scopus_import: '1'
status: public
title: Rapid formation of massive black holes in close proximity to embryonic protogalaxies
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 1
year: '2017'
...
---
_id: '17668'
abstract:
- lang: eng
text: Suppression of H2-cooling in early protogalaxies has important implications
for the formation of supermassive black holes seeds, the first generation of stars,
and the epoch of reionization. This suppression can occur via photodissociation
of H2 (by ultraviolet Lyman-Werner [LW] photons) or by photodetachment of H-,
a precursor in H2 formation (by infrared [IR] photons). Previous studies have
typically adopted idealised spectra, with a blackbody or a power-law shape, in
modeling the chemistry of metal-free protogalaxies, and utilised a single parameter,
the critical UV flux, or Jcrit, to determine whether H2-cooling is prevented.
This can be misleading, and that independent of the spectral shape, there is a
critical curve in the (kLW , kH^- ) plane, where kLW and kH^- are the H2-dissocation
rates by LW and IR photons, which determines whether a protogalaxy can cool below
~1000 Kelvin. We use a one-zone model to follow the chemical and thermal evolution
of gravitationally collapsing protogalactic gas, to compute this critical curve,
and provide an accurate analytical fit for it. We improve on previous works by
considering a variety of more realistic Pop III or Pop II-type spectra from population
synthesis models and perform fully frequency-dependent calculations of the H2-photodissociation
rates for each spectrum. We compute the ratio kLW/kH^- for each spectrum, as well
as the minimum stellar mass M_star, for various IMFs and metallicities, required
to prevent cooling in a neighboring halo a distance d away. We provide critical
M_star/d2 values for suppression of H2-cooling, with analytic fits, which can
be used in future studies.
article_number: stx167
article_processing_charge: No
article_type: original
author:
- first_name: J.
full_name: Wolcott-Green, J.
last_name: Wolcott-Green
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
- first_name: G. L.
full_name: Bryan, G. L.
last_name: Bryan
citation:
ama: 'Wolcott-Green J, Haiman Z, Bryan GL. Beyond Jcrit: A critical curve for suppression
of H2-cooling in protogalaxies. Monthly Notices of the Royal Astronomical Society.
2017. doi:10.1093/mnras/stx167'
apa: 'Wolcott-Green, J., Haiman, Z., & Bryan, G. L. (2017). Beyond Jcrit: A
critical curve for suppression of H2-cooling in protogalaxies. Monthly Notices
of the Royal Astronomical Society. Oxford University Press. https://doi.org/10.1093/mnras/stx167'
chicago: 'Wolcott-Green, J., Zoltán Haiman, and G. L. Bryan. “Beyond Jcrit: A Critical
Curve for Suppression of H2-Cooling in Protogalaxies.” Monthly Notices of the
Royal Astronomical Society. Oxford University Press, 2017. https://doi.org/10.1093/mnras/stx167.'
ieee: 'J. Wolcott-Green, Z. Haiman, and G. L. Bryan, “Beyond Jcrit: A critical curve
for suppression of H2-cooling in protogalaxies,” Monthly Notices of the Royal
Astronomical Society. Oxford University Press, 2017.'
ista: 'Wolcott-Green J, Haiman Z, Bryan GL. 2017. Beyond Jcrit: A critical curve
for suppression of H2-cooling in protogalaxies. Monthly Notices of the Royal Astronomical
Society., stx167.'
mla: 'Wolcott-Green, J., et al. “Beyond Jcrit: A Critical Curve for Suppression
of H2-Cooling in Protogalaxies.” Monthly Notices of the Royal Astronomical
Society, stx167, Oxford University Press, 2017, doi:10.1093/mnras/stx167.'
short: J. Wolcott-Green, Z. Haiman, G.L. Bryan, Monthly Notices of the Royal Astronomical
Society (2017).
date_created: 2024-09-06T07:46:13Z
date_published: 2017-01-20T00:00:00Z
date_updated: 2024-09-25T07:58:06Z
day: '20'
doi: 10.1093/mnras/stx167
extern: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1093/mnras/stx167
month: '01'
oa: 1
oa_version: Published Version
publication: Monthly Notices of the Royal Astronomical Society
publication_identifier:
issn:
- 0035-8711
- 1365-2966
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Beyond Jcrit: A critical curve for suppression of H2-cooling in protogalaxies'
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
year: '2017'
...