---
_id: '1641'
abstract:
- lang: eng
text: The plant hormone auxin (indole-3-acetic acid) is a major regulator of plant
growth and development including embryo and root patterning, lateral organ formation
and growth responses to environmental stimuli. Auxin is directionally transported
from cell to cell by the action of specific auxin influx [AUXIN-RESISTANT1 (AUX1)]
and efflux [PIN-FORMED (PIN)] transport regulators, whose polar, subcellular localizations
are aligned with the direction of the auxin flow. Auxin itself regulates its own
transport by modulation of the expression and subcellular localization of the
auxin transporters. Increased auxin levels promote the transcription of PIN2 and
AUX1 genes as well as stabilize PIN proteins at the plasma membrane, whereas prolonged
auxin exposure increases the turnover of PIN proteins and their degradation in
the vacuole. In this study, we applied a forward genetic approach, to identify
molecular components playing a role in the auxin-mediated degradation. We generated
EMS-mutagenized Arabidopsis PIN2::PIN2:GFP, AUX1::AUX1:YFP eir1aux1 populations
and designed a screen for mutants with persistently strong fluorescent signals
of the tagged PIN2 and AUX1 after prolonged treatment with the synthetic auxin
2,4-dichlorophenoxyacetic acid (2,4-D). This approach yielded novel auxin degradation
mutants defective in trafficking and degradation of PIN2 and AUX1 proteins and
established a role for auxin-mediated degradation in plant development.
acknowledgement: 'European Social Fund (CZ.1.07/2.3.00/20.0043) and the Czech Science
Foundation GAČR (GA13-40637S) to JF. '
article_processing_charge: No
author:
- first_name: Radka
full_name: Zemová, Radka
last_name: Zemová
- first_name: Marta
full_name: Zwiewka, Marta
last_name: Zwiewka
- first_name: Agnieszka
full_name: Bielach, Agnieszka
last_name: Bielach
- first_name: Hélène
full_name: Robert, Hélène
last_name: Robert
- first_name: Jirí
full_name: Friml, Jirí
id: 4159519E-F248-11E8-B48F-1D18A9856A87
last_name: Friml
orcid: 0000-0002-8302-7596
citation:
ama: Zemová R, Zwiewka M, Bielach A, Robert H, Friml J. A forward genetic screen
for new regulators of auxin mediated degradation of auxin transport proteins in
Arabidopsis thaliana. Journal of Plant Growth Regulation. 2016;35(2):465-476.
doi:10.1007/s00344-015-9553-2
apa: Zemová, R., Zwiewka, M., Bielach, A., Robert, H., & Friml, J. (2016). A
forward genetic screen for new regulators of auxin mediated degradation of auxin
transport proteins in Arabidopsis thaliana. Journal of Plant Growth Regulation.
Springer. https://doi.org/10.1007/s00344-015-9553-2
chicago: Zemová, Radka, Marta Zwiewka, Agnieszka Bielach, Hélène Robert, and Jiří
Friml. “A Forward Genetic Screen for New Regulators of Auxin Mediated Degradation
of Auxin Transport Proteins in Arabidopsis Thaliana.” Journal of Plant Growth
Regulation. Springer, 2016. https://doi.org/10.1007/s00344-015-9553-2.
ieee: R. Zemová, M. Zwiewka, A. Bielach, H. Robert, and J. Friml, “A forward genetic
screen for new regulators of auxin mediated degradation of auxin transport proteins
in Arabidopsis thaliana,” Journal of Plant Growth Regulation, vol. 35,
no. 2. Springer, pp. 465–476, 2016.
ista: Zemová R, Zwiewka M, Bielach A, Robert H, Friml J. 2016. A forward genetic
screen for new regulators of auxin mediated degradation of auxin transport proteins
in Arabidopsis thaliana. Journal of Plant Growth Regulation. 35(2), 465–476.
mla: Zemová, Radka, et al. “A Forward Genetic Screen for New Regulators of Auxin
Mediated Degradation of Auxin Transport Proteins in Arabidopsis Thaliana.” Journal
of Plant Growth Regulation, vol. 35, no. 2, Springer, 2016, pp. 465–76, doi:10.1007/s00344-015-9553-2.
short: R. Zemová, M. Zwiewka, A. Bielach, H. Robert, J. Friml, Journal of Plant
Growth Regulation 35 (2016) 465–476.
corr_author: '1'
date_created: 2018-12-11T11:53:12Z
date_published: 2016-06-01T00:00:00Z
date_updated: 2025-09-18T10:51:26Z
day: '01'
ddc:
- '581'
department:
- _id: JiFr
doi: 10.1007/s00344-015-9553-2
external_id:
isi:
- '000376482300015'
file:
- access_level: open_access
checksum: 0dc6a300cde6536ceedd2bcdd2060efb
content_type: application/pdf
creator: system
date_created: 2018-12-12T10:08:34Z
date_updated: 2020-07-14T12:45:08Z
file_id: '4695'
file_name: IST-2018-1001-v1+1_Zemova_JPlantGrowthRegul_2016_proofs.pdf
file_size: 5637591
relation: main_file
file_date_updated: 2020-07-14T12:45:08Z
has_accepted_license: '1'
intvolume: ' 35'
isi: 1
issue: '2'
language:
- iso: eng
month: '06'
oa: 1
oa_version: Preprint
page: 465 - 476
publication: Journal of Plant Growth Regulation
publication_status: published
publisher: Springer
publist_id: '5512'
pubrep_id: '1001'
quality_controlled: '1'
scopus_import: '1'
status: public
title: A forward genetic screen for new regulators of auxin mediated degradation of
auxin transport proteins in Arabidopsis thaliana
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 35
year: '2016'
...
---
_id: '1653'
abstract:
- lang: eng
text: "A somewhere statistically binding (SSB) hash, introduced by Hubáček and Wichs
(ITCS ’15), can be used to hash a long string x to a short digest y = H hk (x)
using a public hashing-key hk. Furthermore, there is a way to set up the hash
key hk to make it statistically binding on some arbitrary hidden position i, meaning
that: (1) the digest y completely determines the i’th bit (or symbol) of x so
that all pre-images of y have the same value in the i’th position, (2) it is computationally
infeasible to distinguish the position i on which hk is statistically binding
from any other position i’. Lastly, the hash should have a local opening property
analogous to Merkle-Tree hashing, meaning that given x and y = H hk (x) it should
be possible to create a short proof π that certifies the value of the i’th bit
(or symbol) of x without having to provide the entire input x. A similar primitive
called a positional accumulator, introduced by Koppula, Lewko and Waters (STOC
’15) further supports dynamic updates of the hashed value. These tools, which
are interesting in their own right, also serve as one of the main technical components
in several recent works building advanced applications from indistinguishability
obfuscation (iO).\r\n\r\nThe prior constructions of SSB hashing and positional
accumulators required fully homomorphic encryption (FHE) and iO respectively.
In this work, we give new constructions of these tools based on well studied number-theoretic
assumptions such as DDH, Phi-Hiding and DCR, as well as a general construction
from lossy/injective functions."
alternative_title:
- LNCS
article_processing_charge: No
author:
- first_name: Tatsuaki
full_name: Okamoto, Tatsuaki
last_name: Okamoto
- first_name: Krzysztof Z
full_name: Pietrzak, Krzysztof Z
id: 3E04A7AA-F248-11E8-B48F-1D18A9856A87
last_name: Pietrzak
orcid: 0000-0002-9139-1654
- first_name: Brent
full_name: Waters, Brent
last_name: Waters
- first_name: Daniel
full_name: Wichs, Daniel
last_name: Wichs
citation:
ama: 'Okamoto T, Pietrzak KZ, Waters B, Wichs D. New realizations of somewhere statistically
binding hashing and positional accumulators. In: Vol 9452. Springer; 2016:121-145.
doi:10.1007/978-3-662-48797-6_6'
apa: 'Okamoto, T., Pietrzak, K. Z., Waters, B., & Wichs, D. (2016). New realizations
of somewhere statistically binding hashing and positional accumulators (Vol. 9452,
pp. 121–145). Presented at the ASIACRYPT: Theory and Application of Cryptology
and Information Security, Auckland, New Zealand: Springer. https://doi.org/10.1007/978-3-662-48797-6_6'
chicago: Okamoto, Tatsuaki, Krzysztof Z Pietrzak, Brent Waters, and Daniel Wichs.
“New Realizations of Somewhere Statistically Binding Hashing and Positional Accumulators,”
9452:121–45. Springer, 2016. https://doi.org/10.1007/978-3-662-48797-6_6.
ieee: 'T. Okamoto, K. Z. Pietrzak, B. Waters, and D. Wichs, “New realizations of
somewhere statistically binding hashing and positional accumulators,” presented
at the ASIACRYPT: Theory and Application of Cryptology and Information Security,
Auckland, New Zealand, 2016, vol. 9452, pp. 121–145.'
ista: 'Okamoto T, Pietrzak KZ, Waters B, Wichs D. 2016. New realizations of somewhere
statistically binding hashing and positional accumulators. ASIACRYPT: Theory and
Application of Cryptology and Information Security, LNCS, vol. 9452, 121–145.'
mla: Okamoto, Tatsuaki, et al. New Realizations of Somewhere Statistically Binding
Hashing and Positional Accumulators. Vol. 9452, Springer, 2016, pp. 121–45,
doi:10.1007/978-3-662-48797-6_6.
short: T. Okamoto, K.Z. Pietrzak, B. Waters, D. Wichs, in:, Springer, 2016, pp.
121–145.
conference:
end_date: 2015-12-03
location: Auckland, New Zealand
name: 'ASIACRYPT: Theory and Application of Cryptology and Information Security'
start_date: 2015-11-29
date_created: 2018-12-11T11:53:16Z
date_published: 2016-01-08T00:00:00Z
date_updated: 2025-09-23T09:40:30Z
day: '08'
ddc:
- '000'
department:
- _id: KrPi
doi: 10.1007/978-3-662-48797-6_6
ec_funded: 1
external_id:
isi:
- '000375148100006'
file:
- access_level: open_access
checksum: a57711cb660c5b17b42bb47275a00180
content_type: application/pdf
creator: system
date_created: 2018-12-12T10:12:05Z
date_updated: 2020-07-14T12:45:08Z
file_id: '4923'
file_name: IST-2016-677-v1+1_869.pdf
file_size: 580088
relation: main_file
file_date_updated: 2020-07-14T12:45:08Z
has_accepted_license: '1'
intvolume: ' 9452'
isi: 1
language:
- iso: eng
month: '01'
oa: 1
oa_version: Submitted Version
page: 121 - 145
project:
- _id: 258C570E-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '259668'
name: Provable Security for Physical Cryptography
publication_status: published
publisher: Springer
publist_id: '5497'
pubrep_id: '677'
quality_controlled: '1'
scopus_import: '1'
status: public
title: New realizations of somewhere statistically binding hashing and positional
accumulators
type: conference
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 9452
year: '2016'
...
---
_id: '1662'
abstract:
- lang: eng
text: We introduce a modification of the classic notion of intrinsic volume using
persistence moments of height functions. Evaluating the modified first intrinsic
volume on digital approximations of a compact body with smoothly embedded boundary
in Rn, we prove convergence to the first intrinsic volume of the body as the resolution
of the approximation improves. We have weaker results for the other modified intrinsic
volumes, proving they converge to the corresponding intrinsic volumes of the n-dimensional
unit ball.
acknowledgement: "This research is partially supported by the Toposys project FP7-ICT-318493-STREP,
and by ESF under the ACAT Research Network Programme.\r\nBoth authors thank Anne
Marie Svane for her comments on an early version of this paper. The second author
wishes to thank Eva B. Vedel Jensen and Markus Kiderlen from Aarhus University for
enlightening discussions and their kind hospitality during a visit of their department
in 2014."
article_processing_charge: No
author:
- first_name: Herbert
full_name: Edelsbrunner, Herbert
id: 3FB178DA-F248-11E8-B48F-1D18A9856A87
last_name: Edelsbrunner
orcid: 0000-0002-9823-6833
- first_name: Florian
full_name: Pausinger, Florian
id: 2A77D7A2-F248-11E8-B48F-1D18A9856A87
last_name: Pausinger
orcid: 0000-0002-8379-3768
citation:
ama: Edelsbrunner H, Pausinger F. Approximation and convergence of the intrinsic
volume. Advances in Mathematics. 2016;287:674-703. doi:10.1016/j.aim.2015.10.004
apa: Edelsbrunner, H., & Pausinger, F. (2016). Approximation and convergence
of the intrinsic volume. Advances in Mathematics. Academic Press. https://doi.org/10.1016/j.aim.2015.10.004
chicago: Edelsbrunner, Herbert, and Florian Pausinger. “Approximation and Convergence
of the Intrinsic Volume.” Advances in Mathematics. Academic Press, 2016.
https://doi.org/10.1016/j.aim.2015.10.004.
ieee: H. Edelsbrunner and F. Pausinger, “Approximation and convergence of the intrinsic
volume,” Advances in Mathematics, vol. 287. Academic Press, pp. 674–703,
2016.
ista: Edelsbrunner H, Pausinger F. 2016. Approximation and convergence of the intrinsic
volume. Advances in Mathematics. 287, 674–703.
mla: Edelsbrunner, Herbert, and Florian Pausinger. “Approximation and Convergence
of the Intrinsic Volume.” Advances in Mathematics, vol. 287, Academic Press,
2016, pp. 674–703, doi:10.1016/j.aim.2015.10.004.
short: H. Edelsbrunner, F. Pausinger, Advances in Mathematics 287 (2016) 674–703.
corr_author: '1'
date_created: 2018-12-11T11:53:20Z
date_published: 2016-01-10T00:00:00Z
date_updated: 2025-09-18T10:50:54Z
day: '10'
ddc:
- '004'
department:
- _id: HeEd
doi: 10.1016/j.aim.2015.10.004
ec_funded: 1
external_id:
isi:
- '000375634100016'
file:
- access_level: open_access
checksum: f8869ec110c35c852ef6a37425374af7
content_type: application/pdf
creator: system
date_created: 2018-12-12T10:12:10Z
date_updated: 2020-07-14T12:45:10Z
file_id: '4928'
file_name: IST-2017-774-v1+1_2016-J-03-FirstIntVolume.pdf
file_size: 248985
relation: main_file
file_date_updated: 2020-07-14T12:45:10Z
has_accepted_license: '1'
intvolume: ' 287'
isi: 1
language:
- iso: eng
license: https://creativecommons.org/licenses/by-nc-nd/4.0/
month: '01'
oa: 1
oa_version: Published Version
page: 674 - 703
project:
- _id: 255D761E-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '318493'
name: Topological Complex Systems
publication: Advances in Mathematics
publication_status: published
publisher: Academic Press
publist_id: '5488'
pubrep_id: '774'
quality_controlled: '1'
related_material:
record:
- id: '1399'
relation: dissertation_contains
status: public
scopus_import: '1'
status: public
title: Approximation and convergence of the intrinsic volume
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: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 287
year: '2016'
...
---
_id: '1705'
abstract:
- lang: eng
text: Hybrid systems represent an important and powerful formalism for modeling
real-world applications such as embedded systems. A verification tool like SpaceEx
is based on the exploration of a symbolic search space (the region space). As
a verification tool, it is typically optimized towards proving the absence of
errors. In some settings, e.g., when the verification tool is employed in a feedback-directed
design cycle, one would like to have the option to call a version that is optimized
towards finding an error trajectory in the region space. A recent approach in
this direction is based on guided search. Guided search relies on a cost function
that indicates which states are promising to be explored, and preferably explores
more promising states first. In this paper, we propose an abstraction-based cost
function based on coarse-grained space abstractions for guiding the reachability
analysis. For this purpose, a suitable abstraction technique that exploits the
flexible granularity of modern reachability analysis algorithms is introduced.
The new cost function is an effective extension of pattern database approaches
that have been successfully applied in other areas. The approach has been implemented
in the SpaceEx model checker. The evaluation shows its practical potential.
article_processing_charge: Yes (via OA deal)
author:
- first_name: Sergiy
full_name: Bogomolov, Sergiy
id: 369D9A44-F248-11E8-B48F-1D18A9856A87
last_name: Bogomolov
orcid: 0000-0002-0686-0365
- first_name: Alexandre
full_name: Donzé, Alexandre
last_name: Donzé
- first_name: Goran
full_name: Frehse, Goran
last_name: Frehse
- first_name: Radu
full_name: Grosu, Radu
last_name: Grosu
- first_name: Taylor
full_name: Johnson, Taylor
last_name: Johnson
- first_name: Hamed
full_name: Ladan, Hamed
last_name: Ladan
- first_name: Andreas
full_name: Podelski, Andreas
last_name: Podelski
- first_name: Martin
full_name: Wehrle, Martin
last_name: Wehrle
citation:
ama: Bogomolov S, Donzé A, Frehse G, et al. Guided search for hybrid systems based
on coarse-grained space abstractions. International Journal on Software Tools
for Technology Transfer. 2016;18(4):449-467. doi:10.1007/s10009-015-0393-y
apa: Bogomolov, S., Donzé, A., Frehse, G., Grosu, R., Johnson, T., Ladan, H., …
Wehrle, M. (2016). Guided search for hybrid systems based on coarse-grained space
abstractions. International Journal on Software Tools for Technology Transfer.
Springer. https://doi.org/10.1007/s10009-015-0393-y
chicago: Bogomolov, Sergiy, Alexandre Donzé, Goran Frehse, Radu Grosu, Taylor Johnson,
Hamed Ladan, Andreas Podelski, and Martin Wehrle. “Guided Search for Hybrid Systems
Based on Coarse-Grained Space Abstractions.” International Journal on Software
Tools for Technology Transfer. Springer, 2016. https://doi.org/10.1007/s10009-015-0393-y.
ieee: S. Bogomolov et al., “Guided search for hybrid systems based on coarse-grained
space abstractions,” International Journal on Software Tools for Technology
Transfer, vol. 18, no. 4. Springer, pp. 449–467, 2016.
ista: Bogomolov S, Donzé A, Frehse G, Grosu R, Johnson T, Ladan H, Podelski A, Wehrle
M. 2016. Guided search for hybrid systems based on coarse-grained space abstractions.
International Journal on Software Tools for Technology Transfer. 18(4), 449–467.
mla: Bogomolov, Sergiy, et al. “Guided Search for Hybrid Systems Based on Coarse-Grained
Space Abstractions.” International Journal on Software Tools for Technology
Transfer, vol. 18, no. 4, Springer, 2016, pp. 449–67, doi:10.1007/s10009-015-0393-y.
short: S. Bogomolov, A. Donzé, G. Frehse, R. Grosu, T. Johnson, H. Ladan, A. Podelski,
M. Wehrle, International Journal on Software Tools for Technology Transfer 18
(2016) 449–467.
corr_author: '1'
date_created: 2018-12-11T11:53:34Z
date_published: 2016-08-01T00:00:00Z
date_updated: 2025-09-18T10:50:19Z
day: '01'
ddc:
- '000'
department:
- _id: ToHe
doi: 10.1007/s10009-015-0393-y
ec_funded: 1
external_id:
isi:
- '000379708300007'
file:
- access_level: open_access
checksum: 31561d7705599a9bd4ea816accc0752e
content_type: application/pdf
creator: system
date_created: 2018-12-12T10:15:26Z
date_updated: 2020-07-14T12:45:13Z
file_id: '5146'
file_name: IST-2016-457-v1+1_s10009-015-0393-y.pdf
file_size: 2296522
relation: main_file
file_date_updated: 2020-07-14T12:45:13Z
has_accepted_license: '1'
intvolume: ' 18'
isi: 1
issue: '4'
language:
- iso: eng
month: '08'
oa: 1
oa_version: Published Version
page: 449 - 467
project:
- _id: 25EE3708-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '267989'
name: Quantitative Reactive Modeling
- _id: 25F42A32-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: Z211
name: Formal methods for the design and analysis of complex systems
- _id: 25832EC2-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: S 11407_N23
name: Rigorous Systems Engineering
publication: International Journal on Software Tools for Technology Transfer
publication_status: published
publisher: Springer
publist_id: '5431'
pubrep_id: '457'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Guided search for hybrid systems based on coarse-grained space abstractions
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: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 18
year: '2016'
...
---
_id: '1707'
abstract:
- lang: eng
text: "Volunteer supporters play an important role in modern crisis and disaster
management. In the times of mobile Internet devices, help from thousands of volunteers
can be requested within a short time span, thus relieving professional helpers
from minor chores or geographically spread-out tasks. However, the simultaneous
availability of many volunteers also poses new problems. In particular, the volunteer
efforts must be well coordinated, or otherwise situations might emerge in which
too many idle volunteers at one location become more of a burden than a relief
to the professionals.\r\nIn this work, we study the task of optimally assigning
volunteers to selected locations, e.g. in order to perform regular measurements,
to report on damage, or to distribute information or resources to the population
in a crisis situation. We formulate the assignment tasks as an optimization problem
and propose an effective and efficient solution procedure. Experiments on real
data of the Team Österreich, consisting of over 36,000 Austrian volunteers, show
the effectiveness and efficiency of our approach."
acknowledgement: The DRIVER FP7 project has received funding from the European Unions
Seventh Framework Programme for research, technological development and demonstration
under grant agreement no 607798. RE-ACTA was funded within the framework of the
Austrian Security Research Programme KIRAS by the Federal Ministry for Transport,
Innovation and Technology.
article_number: '7402041'
author:
- first_name: Jasmin
full_name: Pielorz, Jasmin
id: 49BC895A-F248-11E8-B48F-1D18A9856A87
last_name: Pielorz
- first_name: Christoph
full_name: Lampert, Christoph
id: 40C20FD2-F248-11E8-B48F-1D18A9856A87
last_name: Lampert
orcid: 0000-0001-8622-7887
citation:
ama: 'Pielorz J, Lampert C. Optimal geospatial allocation of volunteers for crisis
management. In: IEEE; 2016. doi:10.1109/ICT-DM.2015.7402041'
apa: 'Pielorz, J., & Lampert, C. (2016). Optimal geospatial allocation of volunteers
for crisis management. Presented at the ICT-DM: Information and Communication
Technologies for Disaster Management, Rennes, France: IEEE. https://doi.org/10.1109/ICT-DM.2015.7402041'
chicago: Pielorz, Jasmin, and Christoph Lampert. “Optimal Geospatial Allocation
of Volunteers for Crisis Management.” IEEE, 2016. https://doi.org/10.1109/ICT-DM.2015.7402041.
ieee: 'J. Pielorz and C. Lampert, “Optimal geospatial allocation of volunteers for
crisis management,” presented at the ICT-DM: Information and Communication Technologies
for Disaster Management, Rennes, France, 2016.'
ista: 'Pielorz J, Lampert C. 2016. Optimal geospatial allocation of volunteers for
crisis management. ICT-DM: Information and Communication Technologies for Disaster
Management, 7402041.'
mla: Pielorz, Jasmin, and Christoph Lampert. Optimal Geospatial Allocation of
Volunteers for Crisis Management. 7402041, IEEE, 2016, doi:10.1109/ICT-DM.2015.7402041.
short: J. Pielorz, C. Lampert, in:, IEEE, 2016.
conference:
end_date: 2015-12-02
location: Rennes, France
name: 'ICT-DM: Information and Communication Technologies for Disaster Management'
start_date: 2015-11-30
date_created: 2018-12-11T11:53:35Z
date_published: 2016-02-11T00:00:00Z
date_updated: 2021-01-12T06:52:39Z
day: '11'
department:
- _id: ChLa
doi: 10.1109/ICT-DM.2015.7402041
language:
- iso: eng
month: '02'
oa_version: None
publication_status: published
publisher: IEEE
publist_id: '5429'
quality_controlled: '1'
scopus_import: 1
status: public
title: Optimal geospatial allocation of volunteers for crisis management
type: conference
user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87
year: '2016'
...
---
_id: '173'
abstract:
- lang: eng
text: We calculate admissible values of r such that a square-free polynomial with
integer coefficients, no fixed prime divisor and irreducible factors of degree
at most 3 takes infinitely many values that are a product of at most r distinct
primes.
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Timothy D
full_name: Browning, Timothy D
id: 35827D50-F248-11E8-B48F-1D18A9856A87
last_name: Browning
orcid: 0000-0002-8314-0177
- first_name: Andrew
full_name: Booker, Andrew
last_name: Booker
citation:
ama: Browning TD, Booker A. Square-free values of reducible polynomials. Discrete
Analysis. 2016;8:1-18. doi:10.19086/da.732
apa: Browning, T. D., & Booker, A. (2016). Square-free values of reducible polynomials.
Discrete Analysis. https://doi.org/10.19086/da.732
chicago: Browning, Timothy D, and Andrew Booker. “Square-Free Values of Reducible
Polynomials.” Discrete Analysis, 2016. https://doi.org/10.19086/da.732.
ieee: T. D. Browning and A. Booker, “Square-free values of reducible polynomials,”
Discrete Analysis, vol. 8. pp. 1–18, 2016.
ista: Browning TD, Booker A. 2016. Square-free values of reducible polynomials.
Discrete Analysis. 8, 1–18.
mla: Browning, Timothy D., and Andrew Booker. “Square-Free Values of Reducible Polynomials.”
Discrete Analysis, vol. 8, 2016, pp. 1–18, doi:10.19086/da.732.
short: T.D. Browning, A. Booker, Discrete Analysis 8 (2016) 1–18.
date_created: 2018-12-11T11:45:00Z
date_published: 2016-06-01T00:00:00Z
date_updated: 2021-01-12T06:52:49Z
day: '01'
doi: 10.19086/da.732
extern: '1'
external_id:
arxiv:
- '1511.00601'
intvolume: ' 8'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1511.00601
month: '06'
oa: 1
oa_version: Preprint
page: 1 - 18
publication: Discrete Analysis
publication_status: published
publist_id: '7748'
quality_controlled: '1'
status: public
title: Square-free values of reducible polynomials
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 8
year: '2016'
...
---
_id: '17618'
abstract:
- lang: eng
text: The largest observed supermassive black holes (SMBHs) have a mass of M_BH
~ 10^{10} M_sun, nearly independent of redshift, from the local (z~0) to the early
(z>6) Universe. We suggest that the growth of SMBHs above a few 10^{10} M_sun
is prevented by small-scale accretion physics, independent of the properties of
their host galaxies or of cosmology. Growing more massive BHs requires a gas supply
rate from galactic scales onto a nuclear region as high as >10^3 M_sun/yr. At
such a high accretion rate, most of the gas converts to stars at large radii (~10-100
pc), well before reaching the BH. We adopt a simple model (Thompson et al. 2005)
for a star-forming accretion disk, and find that the accretion rate in the sub-pc
nuclear region is reduced to the smaller value of at most a few M_sun/yr. This
prevents SMBHs from growing above ~10^{11} M_sun in the age of the Universe. Furthermore,
once a SMBH reaches a sufficiently high mass, this rate falls below the critical
value at which the accretion flow becomes advection dominated. Once this transition
occurs, BH feeding can be suppressed by strong outflows and jets from hot gas
near the BH. We find that the maximum SMBH mass, given by this transition, is
between M_{BH,max} ~ (1-6) * 10^{10} M_sun, depending primarily on the efficiency
of angular momentum transfer inside the galactic disk, and not on other properties
of the host galaxy.
article_number: '110'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Kohei
full_name: Inayoshi, Kohei
last_name: Inayoshi
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
citation:
ama: Inayoshi K, Haiman Z. Is there a maximum mass for black holes in galactic nuclei?
The Astrophysical Journal. 2016;828(2). doi:10.3847/0004-637x/828/2/110
apa: Inayoshi, K., & Haiman, Z. (2016). Is there a maximum mass for black holes
in galactic nuclei? The Astrophysical Journal. American Astronomical Society.
https://doi.org/10.3847/0004-637x/828/2/110
chicago: Inayoshi, Kohei, and Zoltán Haiman. “Is There a Maximum Mass for Black
Holes in Galactic Nuclei?” The Astrophysical Journal. American Astronomical
Society, 2016. https://doi.org/10.3847/0004-637x/828/2/110.
ieee: K. Inayoshi and Z. Haiman, “Is there a maximum mass for black holes in galactic
nuclei?,” The Astrophysical Journal, vol. 828, no. 2. American Astronomical
Society, 2016.
ista: Inayoshi K, Haiman Z. 2016. Is there a maximum mass for black holes in galactic
nuclei? The Astrophysical Journal. 828(2), 110.
mla: Inayoshi, Kohei, and Zoltán Haiman. “Is There a Maximum Mass for Black Holes
in Galactic Nuclei?” The Astrophysical Journal, vol. 828, no. 2, 110, American
Astronomical Society, 2016, doi:10.3847/0004-637x/828/2/110.
short: K. Inayoshi, Z. Haiman, The Astrophysical Journal 828 (2016).
date_created: 2024-09-05T13:44:44Z
date_published: 2016-09-12T00:00:00Z
date_updated: 2024-09-24T08:11:51Z
day: '12'
doi: 10.3847/0004-637x/828/2/110
extern: '1'
external_id:
arxiv:
- '1601.02611'
intvolume: ' 828'
issue: '2'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: ' https://doi.org/10.48550/arXiv.1601.02611'
month: '09'
oa: 1
oa_version: Preprint
publication: The Astrophysical Journal
publication_identifier:
issn:
- 0004-637X
- 1538-4357
publication_status: published
publisher: American Astronomical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Is there a maximum mass for black holes in galactic nuclei?
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 828
year: '2016'
...
---
_id: '17621'
abstract:
- lang: eng
text: We introduce an intrinsic Lyα emission-line profile reconstruction method
for high-z quasars (QSOs). This approach utilises a covariance matrix of emission-line
properties obtained from a large, moderate-z (2 ≤ z ≤ 2.5), high signal to noise
(S/N > 15) sample of BOSS QSOs. For each QSO, we complete a Monte Carlo Markov
Chain fitting of the continuum and emission-line properties and perform a visual
quality assessment to construct a large data base of robustly fit spectra. With
this data set, we construct a covariance matrix to describe the correlations between
the high-ionization emission lines Lyα, C iv, Si iv +O iv] and C iii], and find
it to be well approximated by an N-dimensional Gaussian distribution. This covariance
matrix characterizes the correlations between the linewidth, peak height and velocity
offset from systemic while also allowing for the existence of broad- and narrow-line
components for Lyα and C iv. We illustrate how this covariance matrix allows us
to statistically characterize the intrinsic Lyα line solely from the observed
spectrum redward of 1275 Å. This procedure can be used to reconstruct the intrinsic
Lyα line emission profile in cases where Lyα may otherwise be obscured. Applying
this reconstruction method to our sample of QSOs, we recovered the Lyα line flux
to within 15 per cent of the measured flux at 1205 Å (1220 Å) ∼85 (90) per cent
of the time.
article_processing_charge: No
article_type: original
author:
- first_name: Bradley
full_name: Greig, Bradley
last_name: Greig
- first_name: Andrei
full_name: Mesinger, Andrei
last_name: Mesinger
- first_name: Ian D.
full_name: McGreer, Ian D.
last_name: McGreer
- first_name: Simona
full_name: Gallerani, Simona
last_name: Gallerani
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
citation:
ama: Greig B, Mesinger A, McGreer ID, Gallerani S, Haiman Z. Lyα emission-line reconstruction
for high-z QSOs. Monthly Notices of the Royal Astronomical Society. 2016;466(2):1814-1838.
doi:10.1093/mnras/stw3210
apa: Greig, B., Mesinger, A., McGreer, I. D., Gallerani, S., & Haiman, Z. (2016).
Lyα emission-line reconstruction for high-z QSOs. Monthly Notices of the Royal
Astronomical Society. Oxford University Press. https://doi.org/10.1093/mnras/stw3210
chicago: Greig, Bradley, Andrei Mesinger, Ian D. McGreer, Simona Gallerani, and
Zoltán Haiman. “Lyα Emission-Line Reconstruction for High-z QSOs.” Monthly
Notices of the Royal Astronomical Society. Oxford University Press, 2016.
https://doi.org/10.1093/mnras/stw3210.
ieee: B. Greig, A. Mesinger, I. D. McGreer, S. Gallerani, and Z. Haiman, “Lyα emission-line
reconstruction for high-z QSOs,” Monthly Notices of the Royal Astronomical
Society, vol. 466, no. 2. Oxford University Press, pp. 1814–1838, 2016.
ista: Greig B, Mesinger A, McGreer ID, Gallerani S, Haiman Z. 2016. Lyα emission-line
reconstruction for high-z QSOs. Monthly Notices of the Royal Astronomical Society.
466(2), 1814–1838.
mla: Greig, Bradley, et al. “Lyα Emission-Line Reconstruction for High-z QSOs.”
Monthly Notices of the Royal Astronomical Society, vol. 466, no. 2, Oxford
University Press, 2016, pp. 1814–38, doi:10.1093/mnras/stw3210.
short: B. Greig, A. Mesinger, I.D. McGreer, S. Gallerani, Z. Haiman, Monthly Notices
of the Royal Astronomical Society 466 (2016) 1814–1838.
date_created: 2024-09-05T13:49:52Z
date_published: 2016-12-10T00:00:00Z
date_updated: 2024-09-24T08:31:25Z
day: '10'
doi: 10.1093/mnras/stw3210
extern: '1'
intvolume: ' 466'
issue: '2'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1093/mnras/stw3210
month: '12'
oa: 1
oa_version: Published Version
page: 1814-1838
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: Lyα emission-line reconstruction for high-z QSOs
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 466
year: '2016'
...
---
_id: '17626'
abstract:
- lang: eng
text: "Weak gravitational lensing is becoming a mature technique for constraining
cosmological parameters, and future surveys will be able to constrain the dark
energy equation of state \U0001D464. When analyzing galaxy surveys, redshift information
has proven to be a valuable addition to angular shear correlations. We forecast
parameter constraints on the triplet (Ω\U0001D45A,\U0001D464,\U0001D70E8) for
a LSST-like photometric galaxy survey, using tomography of the shear-shear power
spectrum, convergence peak counts and higher convergence moments. We find that
redshift tomography with the power spectrum reduces the area of the 1\U0001D70E
confidence interval in (Ω\U0001D45A,\U0001D464) space by a factor of 8 with respect
to the case of the single highest redshift bin. We also find that adding non-Gaussian
information from the peak counts and higher-order moments of the convergence field
and its spatial derivatives further reduces the constrained area in (Ω\U0001D45A,\U0001D464)
by factors of 3 and 4, respectively. When we add cosmic microwave background parameter
priors from Planck to our analysis, tomography improves power spectrum constraints
by a factor of 3. Adding moments yields an improvement by an additional factor
of 2, and adding both moments and peaks improves by almost a factor of 3 over
power spectrum tomography alone. We evaluate the effect of uncorrected systematic
photometric redshift errors on the parameter constraints. We find that different
statistics lead to different bias directions in parameter space, suggesting the
possibility of eliminating this bias via self-calibration."
article_number: '063534'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Andrea
full_name: Petri, Andrea
last_name: Petri
- first_name: Morgan
full_name: May, Morgan
last_name: May
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
citation:
ama: 'Petri A, May M, Haiman Z. Cosmology with photometric weak lensing surveys:
Constraints with redshift tomography of convergence peaks and moments. Physical
Review D. 2016;94(6). doi:10.1103/physrevd.94.063534'
apa: 'Petri, A., May, M., & Haiman, Z. (2016). Cosmology with photometric weak
lensing surveys: Constraints with redshift tomography of convergence peaks and
moments. Physical Review D. American Physical Society. https://doi.org/10.1103/physrevd.94.063534'
chicago: 'Petri, Andrea, Morgan May, and Zoltán Haiman. “Cosmology with Photometric
Weak Lensing Surveys: Constraints with Redshift Tomography of Convergence Peaks
and Moments.” Physical Review D. American Physical Society, 2016. https://doi.org/10.1103/physrevd.94.063534.'
ieee: 'A. Petri, M. May, and Z. Haiman, “Cosmology with photometric weak lensing
surveys: Constraints with redshift tomography of convergence peaks and moments,”
Physical Review D, vol. 94, no. 6. American Physical Society, 2016.'
ista: 'Petri A, May M, Haiman Z. 2016. Cosmology with photometric weak lensing surveys:
Constraints with redshift tomography of convergence peaks and moments. Physical
Review D. 94(6), 063534.'
mla: 'Petri, Andrea, et al. “Cosmology with Photometric Weak Lensing Surveys: Constraints
with Redshift Tomography of Convergence Peaks and Moments.” Physical Review
D, vol. 94, no. 6, 063534, American Physical Society, 2016, doi:10.1103/physrevd.94.063534.'
short: A. Petri, M. May, Z. Haiman, Physical Review D 94 (2016).
date_created: 2024-09-05T13:55:24Z
date_published: 2016-09-30T00:00:00Z
date_updated: 2024-09-24T08:54:34Z
day: '30'
doi: 10.1103/physrevd.94.063534
extern: '1'
external_id:
arxiv:
- '1605.01100'
intvolume: ' 94'
issue: '6'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: ' https://doi.org/10.48550/arXiv.1605.01100'
month: '09'
oa: 1
oa_version: Preprint
publication: Physical Review D
publication_identifier:
issn:
- 2470-0010
- 2470-0029
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Cosmology with photometric weak lensing surveys: Constraints with redshift
tomography of convergence peaks and moments'
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 94
year: '2016'
...
---
_id: '17628'
abstract:
- lang: eng
text: "Constraining cosmology using weak gravitational lensing consists of comparing
a measured feature vector of dimension \U0001D441\U0001D44F with its simulated
counterpart. An accurate estimate of the \U0001D441\U0001D44F×\U0001D441\U0001D44F
feature covariance matrix \U0001D402 is essential to obtain accurate parameter
confidence intervals. When \U0001D402 is measured from a set of simulations, an
important question is how large this set should be. To answer this question, we
construct different ensembles of \U0001D441\U0001D45F realizations of the shear
field, using a common randomization procedure that recycles the outputs from a
smaller number \U0001D441\U0001D460≤\U0001D441\U0001D45F of independent ray-tracing
\U0001D441-body simulations. We study parameter confidence intervals as a function
of (\U0001D441\U0001D460, \U0001D441\U0001D45F) in the range 1≤\U0001D441\U0001D460≤200
and 1≤\U0001D441\U0001D45F≲105. Previous work [S. Dodelson and M. D. Schneider,
Phys. Rev. D 88, 063537 (2013)] has shown that Gaussian noise in the feature vectors
(from which the covariance is estimated) lead, at quadratic order, to an \U0001D442(1/\U0001D441\U0001D45F)
degradation of the parameter confidence intervals. Using a variety of lensing
features measured in our simulations, including shear-shear power spectra and
peak counts, we show that cubic and quartic covariance fluctuations lead to additional
\U0001D442(1/\U0001D4412\U0001D45F) error degradation that is not negligible
when \U0001D441\U0001D45F is only a factor of few larger than \U0001D441\U0001D44F.
We study the large \U0001D441\U0001D45F limit, and find that a single, 240 Mpc/ℎ
sized 5123-particle \U0001D441-body simulation (\U0001D441\U0001D460=1) can be
repeatedly recycled to produce as many as \U0001D441\U0001D45F=few×104 shear maps
whose power spectra and high-significance peak counts can be treated as statistically
independent. As a result, a small number of simulations (\U0001D441\U0001D460=1
or 2) is sufficient to forecast parameter confidence intervals at percent accuracy."
article_number: '063524'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Andrea
full_name: Petri, Andrea
last_name: Petri
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
- first_name: Morgan
full_name: May, Morgan
last_name: May
citation:
ama: 'Petri A, Haiman Z, May M. Sample variance in weak lensing: How many simulations
are required? Physical Review D. 2016;93(6). doi:10.1103/physrevd.93.063524'
apa: 'Petri, A., Haiman, Z., & May, M. (2016). Sample variance in weak lensing:
How many simulations are required? Physical Review D. American Physical
Society. https://doi.org/10.1103/physrevd.93.063524'
chicago: 'Petri, Andrea, Zoltán Haiman, and Morgan May. “Sample Variance in Weak
Lensing: How Many Simulations Are Required?” Physical Review D. American
Physical Society, 2016. https://doi.org/10.1103/physrevd.93.063524.'
ieee: 'A. Petri, Z. Haiman, and M. May, “Sample variance in weak lensing: How many
simulations are required?,” Physical Review D, vol. 93, no. 6. American
Physical Society, 2016.'
ista: 'Petri A, Haiman Z, May M. 2016. Sample variance in weak lensing: How many
simulations are required? Physical Review D. 93(6), 063524.'
mla: 'Petri, Andrea, et al. “Sample Variance in Weak Lensing: How Many Simulations
Are Required?” Physical Review D, vol. 93, no. 6, 063524, American Physical
Society, 2016, doi:10.1103/physrevd.93.063524.'
short: A. Petri, Z. Haiman, M. May, Physical Review D 93 (2016).
date_created: 2024-09-05T13:57:57Z
date_published: 2016-03-24T00:00:00Z
date_updated: 2024-09-24T09:17:03Z
day: '24'
doi: 10.1103/physrevd.93.063524
extern: '1'
external_id:
arxiv:
- '1601.06792'
intvolume: ' 93'
issue: '6'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: ' https://doi.org/10.48550/arXiv.1601.06792'
month: '03'
oa: 1
oa_version: Preprint
publication: Physical Review D
publication_identifier:
issn:
- 2470-0010
- 2470-0029
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Sample variance in weak lensing: How many simulations are required?'
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 93
year: '2016'
...
---
_id: '17649'
abstract:
- lang: eng
text: Weak lensing convergence peaks are a promising tool to probe nonlinear structure
evolution at late times, providing additional cosmological information beyond
second-order statistics. Previous theoretical and observational studies have shown
that the cosmological constraints on Ωm and σ8 are improved by a factor of up
to ~ 2 when peak counts and second-order statistics are combined, compared to
using the latter alone. We study the origin of lensing peaks using observational
data from the 154 deg2 Canada-France-Hawaii Telescope Lensing Survey. We found
that while high peaks (with height κ >3.5 σκ, where σκ is the r.m.s. of the convergence
κ) are typically due to one single massive halo of ~1015M⊙, low peaks (κ <~ σκ)
are associated with constellations of 2-8 smaller halos (<~1013M⊙). In addition,
halos responsible for forming low peaks are found to be significantly offset from
the line-of-sight towards the peak center (impact parameter >~ their virial radii),
compared with ~0.25 virial radii for halos linked with high peaks, hinting that
low peaks are more immune to baryonic processes whose impact is confined to the
inner regions of the dark matter halos. Our findings are in good agreement with
results from the simulation work by Yang el al. (2011).
article_number: '043533'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Jia
full_name: Liu, Jia
last_name: Liu
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
citation:
ama: Liu J, Haiman Z. Origin of weak lensing convergence peaks. Physical Review
D. 2016;94(4). doi:10.1103/physrevd.94.043533
apa: Liu, J., & Haiman, Z. (2016). Origin of weak lensing convergence peaks.
Physical Review D. American Physical Society. https://doi.org/10.1103/physrevd.94.043533
chicago: Liu, Jia, and Zoltán Haiman. “Origin of Weak Lensing Convergence Peaks.”
Physical Review D. American Physical Society, 2016. https://doi.org/10.1103/physrevd.94.043533.
ieee: J. Liu and Z. Haiman, “Origin of weak lensing convergence peaks,” Physical
Review D, vol. 94, no. 4. American Physical Society, 2016.
ista: Liu J, Haiman Z. 2016. Origin of weak lensing convergence peaks. Physical
Review D. 94(4), 043533.
mla: Liu, Jia, and Zoltán Haiman. “Origin of Weak Lensing Convergence Peaks.” Physical
Review D, vol. 94, no. 4, 043533, American Physical Society, 2016, doi:10.1103/physrevd.94.043533.
short: J. Liu, Z. Haiman, Physical Review D 94 (2016).
date_created: 2024-09-06T07:28:02Z
date_published: 2016-08-26T00:00:00Z
date_updated: 2024-09-24T12:59:05Z
day: '26'
doi: 10.1103/physrevd.94.043533
extern: '1'
external_id:
arxiv:
- '1606.01318'
intvolume: ' 94'
issue: '4'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: ' https://doi.org/10.48550/arXiv.1606.01318'
month: '08'
oa: 1
oa_version: Preprint
publication: Physical Review D
publication_identifier:
issn:
- 2470-0010
- 2470-0029
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Origin of weak lensing convergence peaks
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 94
year: '2016'
...
---
_id: '17654'
abstract:
- lang: eng
text: We explore the formation of massive high-redshift Population III (Pop III)
galaxies through photoionization feedback. We consider dark matter haloes formed
from progenitors that have undergone no star formation as a result of early reionization
and photoevaporation caused by a nearby galaxy. Once such a halo reaches ≈109 M⊙,
corresponding to the Jeans mass of the photoheated intergalactic medium at z ≈
7, pristine gas is able to collapse into the halo, potentially producing a massive
Pop III starburst. We suggest that this scenario may explain the recent observation
of strong He ii 1640 Å line emission in CR 7, which is consistent with ∼107 M⊙
of young Pop III stars. Such a large mass of Pop III stars is unlikely without
the photoionization feedback scenario, because star formation is expected to inject
metals into haloes above the atomic cooling threshold (∼108 M⊙ at z ≈ 7). We use
merger trees to analytically estimate the abundance of observable Pop III galaxies
formed through this channel, and find a number density of ≈10−7 Mpc−3 at z = 6.6
(the redshift of CR 7). This is approximately a factor of 10 lower than the density
of Ly α emitters as bright as CR 7.
article_processing_charge: No
article_type: original
author:
- first_name: Eli
full_name: Visbal, Eli
last_name: Visbal
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
- first_name: Greg L.
full_name: Bryan, Greg L.
last_name: Bryan
citation:
ama: 'Visbal E, Haiman Z, Bryan GL. Formation of massive Population III galaxies
through photoionization feedback: A possible explanation for CR 7. Monthly
Notices of the Royal Astronomical Society: Letters. 2016;460(1):L59-L63. doi:10.1093/mnrasl/slw071'
apa: 'Visbal, E., Haiman, Z., & Bryan, G. L. (2016). Formation of massive Population
III galaxies through photoionization feedback: A possible explanation for CR 7.
Monthly Notices of the Royal Astronomical Society: Letters. Oxford University
Press. https://doi.org/10.1093/mnrasl/slw071'
chicago: 'Visbal, Eli, Zoltán Haiman, and Greg L. Bryan. “Formation of Massive Population
III Galaxies through Photoionization Feedback: A Possible Explanation for CR 7.”
Monthly Notices of the Royal Astronomical Society: Letters. Oxford University
Press, 2016. https://doi.org/10.1093/mnrasl/slw071.'
ieee: 'E. Visbal, Z. Haiman, and G. L. Bryan, “Formation of massive Population III
galaxies through photoionization feedback: A possible explanation for CR 7,” Monthly
Notices of the Royal Astronomical Society: Letters, vol. 460, no. 1. Oxford
University Press, pp. L59–L63, 2016.'
ista: 'Visbal E, Haiman Z, Bryan GL. 2016. Formation of massive Population III galaxies
through photoionization feedback: A possible explanation for CR 7. Monthly Notices
of the Royal Astronomical Society: Letters. 460(1), L59–L63.'
mla: 'Visbal, Eli, et al. “Formation of Massive Population III Galaxies through
Photoionization Feedback: A Possible Explanation for CR 7.” Monthly Notices
of the Royal Astronomical Society: Letters, vol. 460, no. 1, Oxford University
Press, 2016, pp. L59–63, doi:10.1093/mnrasl/slw071.'
short: 'E. Visbal, Z. Haiman, G.L. Bryan, Monthly Notices of the Royal Astronomical
Society: Letters 460 (2016) L59–L63.'
date_created: 2024-09-06T07:32:23Z
date_published: 2016-04-14T00:00:00Z
date_updated: 2024-09-24T14:19:51Z
day: '14'
doi: 10.1093/mnrasl/slw071
extern: '1'
intvolume: ' 460'
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1093/mnrasl/slw071
month: '04'
oa: 1
oa_version: Published Version
page: L59-L63
publication: 'Monthly Notices of the Royal Astronomical Society: Letters'
publication_identifier:
issn:
- 1745-3925
- 1745-3933
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Formation of massive Population III galaxies through photoionization feedback:
A possible explanation for CR 7'
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 460
year: '2016'
...
---
_id: '17656'
abstract:
- lang: eng
text: We explore the evolution of stellar mass black hole binaries (BHBs) which
are formed in the self-gravitating discs of active galactic nuclei (AGN). Hardening
due to three-body scattering and gaseous drag are effective mechanisms that reduce
the semimajor axis of a BHB to radii where gravitational waves take over, on time-scales
shorter than the typical lifetime of the AGN disc. Taking observationally motivated
assumptions for the rate of star formation in AGN discs, we find a rate of disc-induced
BHB mergers (| $\mathcal {R} \sim 3\ {\rm yr}^{-1}\ {\rm Gpc}^{-3}$ |, but with
large uncertainties) that is comparable with existing estimates of the field rate
of BHB mergers, and the approximate BHB merger rate implied by the recent Advanced
LIGO detection of GW150914. BHBs formed thorough this channel will frequently
be associated with luminous AGN, which are relatively rare within the sky error
regions of future gravitational wave detector arrays. This channel could also
possess a (potentially transient) electromagnetic counterpart due to super-Eddington
accretion on to the stellar mass black hole following the merger.
article_processing_charge: No
article_type: original
author:
- first_name: Nicholas C.
full_name: Stone, Nicholas C.
last_name: Stone
- first_name: Brian D.
full_name: Metzger, Brian D.
last_name: Metzger
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
citation:
ama: 'Stone NC, Metzger BD, Haiman Z. Assisted inspirals of stellar mass black holes
embedded in AGN discs: Solving the ‘final au problem.’ Monthly Notices of the
Royal Astronomical Society. 2016;464(1):946-954. doi:10.1093/mnras/stw2260'
apa: 'Stone, N. C., Metzger, B. D., & Haiman, Z. (2016). Assisted inspirals
of stellar mass black holes embedded in AGN discs: Solving the ‘final au problem.’
Monthly Notices of the Royal Astronomical Society. Oxford University Press.
https://doi.org/10.1093/mnras/stw2260'
chicago: 'Stone, Nicholas C., Brian D. Metzger, and Zoltán Haiman. “Assisted Inspirals
of Stellar Mass Black Holes Embedded in AGN Discs: Solving the ‘Final Au Problem.’”
Monthly Notices of the Royal Astronomical Society. Oxford University Press,
2016. https://doi.org/10.1093/mnras/stw2260.'
ieee: 'N. C. Stone, B. D. Metzger, and Z. Haiman, “Assisted inspirals of stellar
mass black holes embedded in AGN discs: Solving the ‘final au problem,’” Monthly
Notices of the Royal Astronomical Society, vol. 464, no. 1. Oxford University
Press, pp. 946–954, 2016.'
ista: 'Stone NC, Metzger BD, Haiman Z. 2016. Assisted inspirals of stellar mass
black holes embedded in AGN discs: Solving the ‘final au problem’. Monthly Notices
of the Royal Astronomical Society. 464(1), 946–954.'
mla: 'Stone, Nicholas C., et al. “Assisted Inspirals of Stellar Mass Black Holes
Embedded in AGN Discs: Solving the ‘Final Au Problem.’” Monthly Notices of
the Royal Astronomical Society, vol. 464, no. 1, Oxford University Press,
2016, pp. 946–54, doi:10.1093/mnras/stw2260.'
short: N.C. Stone, B.D. Metzger, Z. Haiman, Monthly Notices of the Royal Astronomical
Society 464 (2016) 946–954.
date_created: 2024-09-06T07:35:10Z
date_published: 2016-09-08T00:00:00Z
date_updated: 2024-09-25T07:05:41Z
day: '08'
doi: 10.1093/mnras/stw2260
extern: '1'
intvolume: ' 464'
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1093/mnras/stw2260
month: '09'
oa: 1
oa_version: Published Version
page: 946-954
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: 'Assisted inspirals of stellar mass black holes embedded in AGN discs: Solving
the ‘final au problem’'
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 464
year: '2016'
...
---
_id: '17658'
abstract:
- lang: eng
text: We study circumbinary accretion discs in the framework of the restricted three-body
problem (R3Bp) and via numerically solving the height-integrated equations of
viscous hydrodynamics. Varying the mass ratio of the binary, we find a pronounced
change in the behaviour of the disc near mass ratio q ≡ Ms/Mp ∼ 0.04. For mass
ratios above q = 0.04, solutions for the hydrodynamic flow transition from steady,
to strongly fluctuating; a narrow annular gap in the surface density around the
secondary's orbit changes to a hollow central cavity; and a spatial symmetry is
lost, resulting in a lopsided disc. This phase transition is coincident with the
mass ratio above which stable orbits do not exist around the L4 and L5 equilibrium
points of the R3Bp. Using the disco code, we find that for thin discs, for which
a gap or cavity can remain open, the mass ratio of the transition is relatively
insensitive to disc viscosity and pressure. The q = 0.04 transition has relevance
for the evolution of massive black hole binary+disc systems at the centres of
galactic nuclei, as well as for young stellar binaries and possibly planets around
brown dwarfs.
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
- first_name: Paul
full_name: Duffell, Paul
last_name: Duffell
- first_name: Andrew
full_name: MacFadyen, Andrew
last_name: MacFadyen
- first_name: Brian
full_name: Farris, Brian
last_name: Farris
citation:
ama: D’Orazio DJ, Haiman Z, Duffell P, MacFadyen A, Farris B. A transition in circumbinary
accretion discs at a binary mass ratio of 1:25. Monthly Notices of the Royal
Astronomical Society. 2016;459(3):2379-2393. doi:10.1093/mnras/stw792
apa: D’Orazio, D. J., Haiman, Z., Duffell, P., MacFadyen, A., & Farris, B. (2016).
A transition in circumbinary accretion discs at a binary mass ratio of 1:25. Monthly
Notices of the Royal Astronomical Society. Oxford University Press. https://doi.org/10.1093/mnras/stw792
chicago: D’Orazio, Daniel J., Zoltán Haiman, Paul Duffell, Andrew MacFadyen, and
Brian Farris. “A Transition in Circumbinary Accretion Discs at a Binary Mass Ratio
of 1:25.” Monthly Notices of the Royal Astronomical Society. Oxford University
Press, 2016. https://doi.org/10.1093/mnras/stw792.
ieee: D. J. D’Orazio, Z. Haiman, P. Duffell, A. MacFadyen, and B. Farris, “A transition
in circumbinary accretion discs at a binary mass ratio of 1:25,” Monthly Notices
of the Royal Astronomical Society, vol. 459, no. 3. Oxford University Press,
pp. 2379–2393, 2016.
ista: D’Orazio DJ, Haiman Z, Duffell P, MacFadyen A, Farris B. 2016. A transition
in circumbinary accretion discs at a binary mass ratio of 1:25. Monthly Notices
of the Royal Astronomical Society. 459(3), 2379–2393.
mla: D’Orazio, Daniel J., et al. “A Transition in Circumbinary Accretion Discs at
a Binary Mass Ratio of 1:25.” Monthly Notices of the Royal Astronomical Society,
vol. 459, no. 3, Oxford University Press, 2016, pp. 2379–93, doi:10.1093/mnras/stw792.
short: D.J. D’Orazio, Z. Haiman, P. Duffell, A. MacFadyen, B. Farris, Monthly Notices
of the Royal Astronomical Society 459 (2016) 2379–2393.
date_created: 2024-09-06T07:36:39Z
date_published: 2016-04-06T00:00:00Z
date_updated: 2024-09-25T07:14:30Z
day: '06'
doi: 10.1093/mnras/stw792
extern: '1'
intvolume: ' 459'
issue: '3'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1093/mnras/stw792
month: '04'
oa: 1
oa_version: Published Version
page: 2379-2393
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 transition in circumbinary accretion discs at a binary mass ratio of 1:25
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 459
year: '2016'
...
---
_id: '17659'
abstract:
- lang: eng
text: The recent discovery of the gravitational wave source GW150914 has revealed
a coalescing binary black hole (BBH) with masses of ∼30 M⊙. Previous proposals
for the origin of such a massive binary include Population III (PopIII) stars.
PopIII stars are efficient producers of BBHs and of a gravitational wave background
(GWB) in the 10–100 Hz band, and also of ionizing radiation in the early Universe.
We quantify the relation between the amplitude of the GWB (Ωgw) and the electron
scattering optical depth (τe), produced by PopIII stars, assuming that fesc ≈
10 per cent of their ionizing radiation escapes into the intergalactic medium.
We find that PopIII stars would produce a GWB that is detectable by the future
O5 LIGO/Virgo if τe ≳ 0.07, consistent with the recent Planck measurement of τe
= 0.055 ± 0.09. Moreover, the spectral index of the background from PopIII BBHs
becomes as small as dln Ωgw/dln f ≲ 0.3 at f ≳ 30 Hz, which is significantly flatter
than the value ∼2/3 generically produced by lower redshift and less-massive BBHs.
A detection of the unique flattening at such low frequencies by the O5 LIGO/Virgo
will indicate the existence of a high-chirp mass, high-redshift BBH population,
which is consistent with the PopIII origin. A precise characterization of the
spectral shape near 30–50 Hz by the Einstein Telescope could also constrain the
PopIII initial mass function and star formation rate.
article_processing_charge: No
article_type: original
author:
- first_name: Kohei
full_name: Inayoshi, Kohei
last_name: Inayoshi
- first_name: Kazumi
full_name: Kashiyama, Kazumi
last_name: Kashiyama
- first_name: Eli
full_name: Visbal, Eli
last_name: Visbal
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
citation:
ama: Inayoshi K, Kashiyama K, Visbal E, Haiman Z. Gravitational wave background
from Population III binary black holes consistent with cosmic reionization. Monthly
Notices of the Royal Astronomical Society. 2016;461(3):2722-2727. doi:10.1093/mnras/stw1431
apa: Inayoshi, K., Kashiyama, K., Visbal, E., & Haiman, Z. (2016). Gravitational
wave background from Population III binary black holes consistent with cosmic
reionization. Monthly Notices of the Royal Astronomical Society. Oxford
University Press. https://doi.org/10.1093/mnras/stw1431
chicago: Inayoshi, Kohei, Kazumi Kashiyama, Eli Visbal, and Zoltán Haiman. “Gravitational
Wave Background from Population III Binary Black Holes Consistent with Cosmic
Reionization.” Monthly Notices of the Royal Astronomical Society. Oxford
University Press, 2016. https://doi.org/10.1093/mnras/stw1431.
ieee: K. Inayoshi, K. Kashiyama, E. Visbal, and Z. Haiman, “Gravitational wave background
from Population III binary black holes consistent with cosmic reionization,” Monthly
Notices of the Royal Astronomical Society, vol. 461, no. 3. Oxford University
Press, pp. 2722–2727, 2016.
ista: Inayoshi K, Kashiyama K, Visbal E, Haiman Z. 2016. Gravitational wave background
from Population III binary black holes consistent with cosmic reionization. Monthly
Notices of the Royal Astronomical Society. 461(3), 2722–2727.
mla: Inayoshi, Kohei, et al. “Gravitational Wave Background from Population III
Binary Black Holes Consistent with Cosmic Reionization.” Monthly Notices of
the Royal Astronomical Society, vol. 461, no. 3, Oxford University Press,
2016, pp. 2722–27, doi:10.1093/mnras/stw1431.
short: K. Inayoshi, K. Kashiyama, E. Visbal, Z. Haiman, Monthly Notices of the Royal
Astronomical Society 461 (2016) 2722–2727.
date_created: 2024-09-06T07:37:31Z
date_published: 2016-06-21T00:00:00Z
date_updated: 2024-09-25T07:17:34Z
day: '21'
doi: 10.1093/mnras/stw1431
extern: '1'
intvolume: ' 461'
issue: '3'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1093/mnras/stw1431
month: '06'
oa: 1
oa_version: Published Version
page: 2722-2727
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: Gravitational wave background from Population III binary black holes consistent
with cosmic reionization
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 461
year: '2016'
...
---
_id: '17666'
abstract:
- lang: eng
text: We have investigated a recently proposed halo-based model, Camelus, for predicting
weak-lensing peak counts, and compared its results over a collection of 162 cosmologies
with those from N-body simulations. While counts from both models agree for peaks
with S/N>1 (where S/N is the ratio of the peak height to the r.m.s. shape noise),
we find ≈50% fewer counts for peaks near S/N=0 and significantly higher counts
in the negative S/N tail. Adding shape noise reduces the differences to within
20% for all cosmologies. We also found larger covariances that are more sensitive
to cosmological parameters. As a result, credibility regions in the {Ωm,σ8} are
≈30% larger. Even though the credible contours are commensurate, each model draws
its predictive power from different types of peaks. Low peaks, especially those
with 23). Our results confirm the
importance of using a cosmology-dependent covariance with at least a 14\% improvement
in parameter constraints. We identified the covariance estimation as the main
driver behind differences in inference, and suggest possible ways to make Camelus
even more useful as a highly accurate peak count emulator.
article_number: '083506'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: José Manuel
full_name: Zorrilla Matilla, José Manuel
last_name: Zorrilla Matilla
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
- first_name: Daniel
full_name: Hsu, Daniel
last_name: Hsu
- first_name: Arushi
full_name: Gupta, Arushi
last_name: Gupta
- first_name: Andrea
full_name: Petri, Andrea
last_name: Petri
citation:
ama: Zorrilla Matilla JM, Haiman Z, Hsu D, Gupta A, Petri A. Do dark matter halos
explain lensing peaks? Physical Review D. 2016;94(8). doi:10.1103/physrevd.94.083506
apa: Zorrilla Matilla, J. M., Haiman, Z., Hsu, D., Gupta, A., & Petri, A. (2016).
Do dark matter halos explain lensing peaks? Physical Review D. American
Physical Society. https://doi.org/10.1103/physrevd.94.083506
chicago: Zorrilla Matilla, José Manuel, Zoltán Haiman, Daniel Hsu, Arushi Gupta,
and Andrea Petri. “Do Dark Matter Halos Explain Lensing Peaks?” Physical Review
D. American Physical Society, 2016. https://doi.org/10.1103/physrevd.94.083506.
ieee: J. M. Zorrilla Matilla, Z. Haiman, D. Hsu, A. Gupta, and A. Petri, “Do dark
matter halos explain lensing peaks?,” Physical Review D, vol. 94, no. 8.
American Physical Society, 2016.
ista: Zorrilla Matilla JM, Haiman Z, Hsu D, Gupta A, Petri A. 2016. Do dark matter
halos explain lensing peaks? Physical Review D. 94(8), 083506.
mla: Zorrilla Matilla, José Manuel, et al. “Do Dark Matter Halos Explain Lensing
Peaks?” Physical Review D, vol. 94, no. 8, 083506, American Physical Society,
2016, doi:10.1103/physrevd.94.083506.
short: J.M. Zorrilla Matilla, Z. Haiman, D. Hsu, A. Gupta, A. Petri, Physical Review
D 94 (2016).
date_created: 2024-09-06T07:44:28Z
date_published: 2016-10-04T00:00:00Z
date_updated: 2024-09-25T07:49:17Z
day: '04'
doi: 10.1103/physrevd.94.083506
extern: '1'
external_id:
arxiv:
- '1609.03973'
intvolume: ' 94'
issue: '8'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: ' https://doi.org/10.48550/arXiv.1609.03973'
month: '10'
oa: 1
oa_version: Preprint
publication: Physical Review D
publication_identifier:
issn:
- 2470-0010
- 2470-0029
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Do dark matter halos explain lensing peaks?
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 94
year: '2016'
...
---
_id: '17669'
abstract:
- lang: eng
text: 'Unprecedentedly precise cosmic microwave background (CMB) data are expected
from ongoing and near-future CMB Stage-III and IV surveys, which will yield reconstructed
CMB lensing maps with effective resolution approaching several arcminutes. The
small-scale CMB lensing fluctuations receive non-negligible contributions from
nonlinear structure in the late-time density field. These fluctuations are not
fully characterized by traditional two-point statistics, such as the power spectrum.
Here, we use N-body ray-tracing simulations of CMB lensing maps to examine two
higher-order statistics: the lensing convergence one-point probability distribution
function (PDF) and peak counts. We show that these statistics contain significant
information not captured by the two-point function, and provide specific forecasts
for the ongoing Stage-III Advanced Atacama Cosmology Telescope (AdvACT) experiment.
Considering only the temperature-based reconstruction estimator, we forecast 9σ
(PDF) and 6σ (peaks) detections of these statistics with AdvACT. Our simulation
pipeline fully accounts for the non-Gaussianity of the lensing reconstruction
noise, which is significant and cannot be neglected. Combining the power spectrum,
PDF, and peak counts for AdvACT will tighten cosmological constraints in the Ωm-σ8
plane by ≈30%, compared to using the power spectrum alone.'
article_number: '103501'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Jia
full_name: Liu, Jia
last_name: Liu
- first_name: J. Colin
full_name: Hill, J. Colin
last_name: Hill
- first_name: Blake D.
full_name: Sherwin, Blake D.
last_name: Sherwin
- first_name: Andrea
full_name: Petri, Andrea
last_name: Petri
- first_name: Vanessa
full_name: Böhm, Vanessa
last_name: Böhm
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
citation:
ama: 'Liu J, Hill JC, Sherwin BD, Petri A, Böhm V, Haiman Z. CMB lensing beyond
the power spectrum: Cosmological constraints from the one-point probability distribution
function and peak counts. Physical Review D. 2016;94(10). doi:10.1103/physrevd.94.103501'
apa: 'Liu, J., Hill, J. C., Sherwin, B. D., Petri, A., Böhm, V., & Haiman, Z.
(2016). CMB lensing beyond the power spectrum: Cosmological constraints from the
one-point probability distribution function and peak counts. Physical Review
D. American Physical Society. https://doi.org/10.1103/physrevd.94.103501'
chicago: 'Liu, Jia, J. Colin Hill, Blake D. Sherwin, Andrea Petri, Vanessa Böhm,
and Zoltán Haiman. “CMB Lensing beyond the Power Spectrum: Cosmological Constraints
from the One-Point Probability Distribution Function and Peak Counts.” Physical
Review D. American Physical Society, 2016. https://doi.org/10.1103/physrevd.94.103501.'
ieee: 'J. Liu, J. C. Hill, B. D. Sherwin, A. Petri, V. Böhm, and Z. Haiman, “CMB
lensing beyond the power spectrum: Cosmological constraints from the one-point
probability distribution function and peak counts,” Physical Review D,
vol. 94, no. 10. American Physical Society, 2016.'
ista: 'Liu J, Hill JC, Sherwin BD, Petri A, Böhm V, Haiman Z. 2016. CMB lensing
beyond the power spectrum: Cosmological constraints from the one-point probability
distribution function and peak counts. Physical Review D. 94(10), 103501.'
mla: 'Liu, Jia, et al. “CMB Lensing beyond the Power Spectrum: Cosmological Constraints
from the One-Point Probability Distribution Function and Peak Counts.” Physical
Review D, vol. 94, no. 10, 103501, American Physical Society, 2016, doi:10.1103/physrevd.94.103501.'
short: J. Liu, J.C. Hill, B.D. Sherwin, A. Petri, V. Böhm, Z. Haiman, Physical Review
D 94 (2016).
date_created: 2024-09-06T07:47:04Z
date_published: 2016-11-02T00:00:00Z
date_updated: 2024-09-25T08:01:19Z
day: '02'
doi: 10.1103/physrevd.94.103501
extern: '1'
external_id:
arxiv:
- '1608.03169'
intvolume: ' 94'
issue: '10'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: ' https://doi.org/10.48550/arXiv.1608.03169'
month: '11'
oa: 1
oa_version: Preprint
publication: Physical Review D
publication_identifier:
issn:
- 2470-0010
- 2470-0029
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'CMB lensing beyond the power spectrum: Cosmological constraints from the one-point
probability distribution function and peak counts'
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 94
year: '2016'
...
---
_id: '17672'
abstract:
- lang: eng
text: Supermassive black hole binaries (SMBHBs) at sub-parsec separations should
be common in galactic nuclei, as a result of frequent galaxy mergers. Hydrodynamical
simulations of circum-binary discs predict strong periodic modulation of the mass
accretion rate on time-scales comparable to the orbital period of the binary.
As a result, SMBHBs may be recognized by the periodic modulation of their brightness.
We conducted a statistical search for periodic variability in a sample of 35 383
spectroscopically confirmed quasars in the photometric data base of the Palomar
Transient Factory (PTF). We analysed Lomb–Scargle periodograms and assessed the
significance of our findings by modelling each individual quasar's variability
as a damped random walk (DRW). We identified 50 quasars with significant periodicity
beyond the DRW model, typically with short periods of a few hundred days. We find
33 of these to remain significant after a re-analysis of their periodograms including
additional optical data from the intermediate-PTF and the Catalina Real-Time Transient
Survey. Assuming that the observed periods correspond to the redshifted orbital
periods of SMBHBs, we conclude that our findings are consistent with a population
of unequal-mass SMBHBs, with a typical mass ratio as low as q ≡ M2/M1 ≈ 0.01.
article_processing_charge: No
article_type: original
author:
- first_name: M.
full_name: Charisi, M.
last_name: Charisi
- first_name: I.
full_name: Bartos, I.
last_name: Bartos
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
- first_name: A. M.
full_name: Price-Whelan, A. M.
last_name: Price-Whelan
- first_name: M. J.
full_name: Graham, M. J.
last_name: Graham
- first_name: E. C.
full_name: Bellm, E. C.
last_name: Bellm
- first_name: R. R.
full_name: Laher, R. R.
last_name: Laher
- first_name: S.
full_name: Márka, S.
last_name: Márka
citation:
ama: Charisi M, Bartos I, Haiman Z, et al. A population of short-period variable
quasars from PTF as supermassive black hole binary candidates. Monthly Notices
of the Royal Astronomical Society. 2016;463(2):2145-2171. doi:10.1093/mnras/stw1838
apa: Charisi, M., Bartos, I., Haiman, Z., Price-Whelan, A. M., Graham, M. J., Bellm,
E. C., … Márka, S. (2016). A population of short-period variable quasars from
PTF as supermassive black hole binary candidates. Monthly Notices of the Royal
Astronomical Society. Oxford University Press. https://doi.org/10.1093/mnras/stw1838
chicago: Charisi, M., I. Bartos, Zoltán Haiman, A. M. Price-Whelan, M. J. Graham,
E. C. Bellm, R. R. Laher, and S. Márka. “A Population of Short-Period Variable
Quasars from PTF as Supermassive Black Hole Binary Candidates.” Monthly Notices
of the Royal Astronomical Society. Oxford University Press, 2016. https://doi.org/10.1093/mnras/stw1838.
ieee: M. Charisi et al., “A population of short-period variable quasars from
PTF as supermassive black hole binary candidates,” Monthly Notices of the Royal
Astronomical Society, vol. 463, no. 2. Oxford University Press, pp. 2145–2171,
2016.
ista: Charisi M, Bartos I, Haiman Z, Price-Whelan AM, Graham MJ, Bellm EC, Laher
RR, Márka S. 2016. A population of short-period variable quasars from PTF as supermassive
black hole binary candidates. Monthly Notices of the Royal Astronomical Society.
463(2), 2145–2171.
mla: Charisi, M., et al. “A Population of Short-Period Variable Quasars from PTF
as Supermassive Black Hole Binary Candidates.” Monthly Notices of the Royal
Astronomical Society, vol. 463, no. 2, Oxford University Press, 2016, pp.
2145–71, doi:10.1093/mnras/stw1838.
short: M. Charisi, I. Bartos, Z. Haiman, A.M. Price-Whelan, M.J. Graham, E.C. Bellm,
R.R. Laher, S. Márka, Monthly Notices of the Royal Astronomical Society 463 (2016)
2145–2171.
date_created: 2024-09-06T07:49:15Z
date_published: 2016-07-28T00:00:00Z
date_updated: 2024-09-25T08:28:42Z
day: '28'
doi: 10.1093/mnras/stw1838
extern: '1'
intvolume: ' 463'
issue: '2'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1093/mnras/stw1838
month: '07'
oa: 1
oa_version: Published Version
page: 2145-2171
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 population of short-period variable quasars from PTF as supermassive black
hole binary candidates
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 463
year: '2016'
...
---
_id: '17693'
abstract:
- lang: eng
text: We perform one-dimensional radiation hydrodynamical simulations to solve accretion
flows onto massive black holes (BHs) with a very high rate. Assuming that photon
trapping limits the luminosity emerging from the central region to L≲LEdd, Inayoshi,
Haiman & Ostriker (2016) have shown that an accretion flow settles to a "hyper-Eddington"
solution, with a steady and isothermal (T≃8000 K) Bondi profile reaching ≳5000
times the Eddington accretion rate M˙Edd≡LEdd/c2. Here we address the possibility
that gas accreting with finite angular momentum forms a bright nuclear accretion
disc, with a luminosity exceeding the Eddington limit (1≲L/LEdd≲100). Combining
our simulations with an analytic model, we find that a transition to steady hyper-Eddington
accretion still occurs, as long as the luminosity remains below L/LEdd≲35 (MBH/10^4
M⊙)^3/2(n∞/10^5 cm^−3)(T∞/10^4 K)^−3/2(r⋆/10^14 cm)^−1/2, where n∞ and T∞ are
the density and temperature of the ambient gas, and r⋆ is the radius of the photosphere,
at which radiation emerges. If the luminosity exceeds this value, accretion becomes
episodic. Our results can be accurately recovered in a toy model of an optically
thick spherical shell, driven by radiation force into a collapsing medium. When
the central source is dimmer than the above critical value, the expansion of the
shell is halted and reversed by ram pressure of the collapsing medium, and by
shell's weight. Our results imply that rapid, unimpeded hyper-Eddington accretion
is possible even if the luminosity of the central source far exceeds the Eddington
limit, and can be either steady or strongly episodic.
article_processing_charge: No
article_type: original
author:
- first_name: Yuya
full_name: Sakurai, Yuya
last_name: Sakurai
- first_name: Kohei
full_name: Inayoshi, Kohei
last_name: Inayoshi
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
citation:
ama: Sakurai Y, Inayoshi K, Haiman Z. Hyper-Eddington mass accretion on to a black
hole with super-Eddington luminosity. Monthly Notices of the Royal Astronomical
Society. 2016;461(4):4496-4504. doi:10.1093/mnras/stw1652
apa: Sakurai, Y., Inayoshi, K., & Haiman, Z. (2016). Hyper-Eddington mass accretion
on to a black hole with super-Eddington luminosity. Monthly Notices of the
Royal Astronomical Society. Oxford University Press. https://doi.org/10.1093/mnras/stw1652
chicago: Sakurai, Yuya, Kohei Inayoshi, and Zoltán Haiman. “Hyper-Eddington Mass
Accretion on to a Black Hole with Super-Eddington Luminosity.” Monthly Notices
of the Royal Astronomical Society. Oxford University Press, 2016. https://doi.org/10.1093/mnras/stw1652.
ieee: Y. Sakurai, K. Inayoshi, and Z. Haiman, “Hyper-Eddington mass accretion on
to a black hole with super-Eddington luminosity,” Monthly Notices of the Royal
Astronomical Society, vol. 461, no. 4. Oxford University Press, pp. 4496–4504,
2016.
ista: Sakurai Y, Inayoshi K, Haiman Z. 2016. Hyper-Eddington mass accretion on to
a black hole with super-Eddington luminosity. Monthly Notices of the Royal Astronomical
Society. 461(4), 4496–4504.
mla: Sakurai, Yuya, et al. “Hyper-Eddington Mass Accretion on to a Black Hole with
Super-Eddington Luminosity.” Monthly Notices of the Royal Astronomical Society,
vol. 461, no. 4, Oxford University Press, 2016, pp. 4496–504, doi:10.1093/mnras/stw1652.
short: Y. Sakurai, K. Inayoshi, Z. Haiman, Monthly Notices of the Royal Astronomical
Society 461 (2016) 4496–4504.
date_created: 2024-09-06T08:39:53Z
date_published: 2016-07-08T00:00:00Z
date_updated: 2024-09-25T10:02:57Z
day: '08'
doi: 10.1093/mnras/stw1652
extern: '1'
intvolume: ' 461'
issue: '4'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1093/mnras/stw1652
month: '07'
oa: 1
oa_version: Published Version
page: 4496-4504
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: Hyper-Eddington mass accretion on to a black hole with super-Eddington luminosity
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 461
year: '2016'
...
---
_id: '17699'
abstract:
- lang: eng
text: 'We quantify the presence of Ly\alpha\ damping wing absorption from a partially-neutral
intergalactic medium (IGM) in the spectrum of the z=7.08 QSO, ULASJ1120+0641.
Using a Bayesian framework, we simultaneously account for uncertainties in: (i)
the intrinsic QSO emission spectrum; and (ii) the distribution of cosmic HI patches
during the epoch of reionisation (EoR). For (i) we use a new intrinsic Ly\alpha\
emission line reconstruction method (Greig et al.), sampling a covariance matrix
of emission line properties built from a large database of moderate-z QSOs. For
(ii), we use the Evolution of 21-cm Structure (EOS; Mesinger et al.) simulations,
which span a range of physically-motivated EoR models. We find strong evidence
for the presence of damping wing absorption redward of Ly\alpha\ (where there
is no contamination from the Ly\alpha\ forest). Our analysis implies that the
EoR is not yet complete by z=7.1, with the volume-weighted IGM neutral fraction
constrained to x¯HI=0.40+0.21−0.19 at 1σ (x¯HI=0.40+0.41−0.32 at 2σ). This result
is insensitive to the EoR morphology. Our detection of significant neutral HI
in the IGM at z=7.1 is consistent with the latest Planck 2016 measurements of
the CMB Thompson scattering optical depth (Planck Collaboration XLVII).'
article_number: stw3351
article_processing_charge: No
article_type: original
author:
- first_name: Bradley
full_name: Greig, Bradley
last_name: Greig
- first_name: Andrei
full_name: Mesinger, Andrei
last_name: Mesinger
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
- first_name: Robert A.
full_name: Simcoe, Robert A.
last_name: Simcoe
citation:
ama: Greig B, Mesinger A, Haiman Z, Simcoe RA. Are we witnessing the epoch of reionization
at z=7.1 from the spectrum of J1120+0641? Monthly Notices of the Royal Astronomical
Society. 2016. doi:10.1093/mnras/stw3351
apa: Greig, B., Mesinger, A., Haiman, Z., & Simcoe, R. A. (2016). Are we witnessing
the epoch of reionization at z=7.1 from the spectrum of J1120+0641? Monthly
Notices of the Royal Astronomical Society. Oxford University Press. https://doi.org/10.1093/mnras/stw3351
chicago: Greig, Bradley, Andrei Mesinger, Zoltán Haiman, and Robert A. Simcoe. “Are
We Witnessing the Epoch of Reionization at Z=7.1 from the Spectrum of J1120+0641?”
Monthly Notices of the Royal Astronomical Society. Oxford University Press,
2016. https://doi.org/10.1093/mnras/stw3351.
ieee: B. Greig, A. Mesinger, Z. Haiman, and R. A. Simcoe, “Are we witnessing the
epoch of reionization at z=7.1 from the spectrum of J1120+0641?,” Monthly Notices
of the Royal Astronomical Society. Oxford University Press, 2016.
ista: Greig B, Mesinger A, Haiman Z, Simcoe RA. 2016. Are we witnessing the epoch
of reionization at z=7.1 from the spectrum of J1120+0641? Monthly Notices of the
Royal Astronomical Society., stw3351.
mla: Greig, Bradley, et al. “Are We Witnessing the Epoch of Reionization at Z=7.1
from the Spectrum of J1120+0641?” Monthly Notices of the Royal Astronomical
Society, stw3351, Oxford University Press, 2016, doi:10.1093/mnras/stw3351.
short: B. Greig, A. Mesinger, Z. Haiman, R.A. Simcoe, Monthly Notices of the Royal
Astronomical Society (2016).
date_created: 2024-09-06T08:45:10Z
date_published: 2016-12-24T00:00:00Z
date_updated: 2024-09-25T11:19:08Z
day: '24'
doi: 10.1093/mnras/stw3351
extern: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1093/mnras/stw3351
month: '12'
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: Are we witnessing the epoch of reionization at z=7.1 from the spectrum of J1120+0641?
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
year: '2016'
...