---
_id: '66'
abstract:
- lang: eng
  text: 'Crypto-currencies are digital assets designed to work as a medium of exchange,
    e.g., Bitcoin, but they are susceptible to attacks (dishonest behavior of participants).
    A framework for the analysis of attacks in crypto-currencies requires (a) modeling
    of game-theoretic aspects to analyze incentives for deviation from honest behavior;
    (b) concurrent interactions between participants; and (c) analysis of long-term
    monetary gains. Traditional game-theoretic approaches for the analysis of security
    protocols consider either qualitative temporal properties such as safety and termination,
    or the very special class of one-shot (stateless) games. However, to analyze general
    attacks on protocols for crypto-currencies, both stateful analysis and quantitative
    objectives are necessary. In this work our main contributions are as follows:
    (a) we show how a class of concurrent mean-payo games, namely ergodic games, can
    model various attacks that arise naturally in crypto-currencies; (b) we present
    the first practical implementation of algorithms for ergodic games that scales
    to model realistic problems for crypto-currencies; and (c) we present experimental
    results showing that our framework can handle games with thousands of states and
    millions of transitions.'
alternative_title:
- LIPIcs
article_number: '11'
article_processing_charge: No
arxiv: 1
author:
- first_name: Krishnendu
  full_name: Chatterjee, Krishnendu
  id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
  last_name: Chatterjee
  orcid: 0000-0002-4561-241X
- first_name: Amir
  full_name: Goharshady, Amir
  id: 391365CE-F248-11E8-B48F-1D18A9856A87
  last_name: Goharshady
  orcid: 0000-0003-1702-6584
- first_name: Rasmus
  full_name: Ibsen-Jensen, Rasmus
  id: 3B699956-F248-11E8-B48F-1D18A9856A87
  last_name: Ibsen-Jensen
  orcid: 0000-0003-4783-0389
- first_name: Yaron
  full_name: Velner, Yaron
  last_name: Velner
citation:
  ama: 'Chatterjee K, Goharshady AK, Ibsen-Jensen R, Velner Y. Ergodic mean-payoff
    games for the analysis of attacks in crypto-currencies. In: Vol 118. Schloss Dagstuhl
    - Leibniz-Zentrum für Informatik; 2018. doi:<a href="https://doi.org/10.4230/LIPIcs.CONCUR.2018.11">10.4230/LIPIcs.CONCUR.2018.11</a>'
  apa: 'Chatterjee, K., Goharshady, A. K., Ibsen-Jensen, R., &#38; Velner, Y. (2018).
    Ergodic mean-payoff games for the analysis of attacks in crypto-currencies (Vol.
    118). Presented at the CONCUR: Conference on Concurrency Theory, Beijing, China:
    Schloss Dagstuhl - Leibniz-Zentrum für Informatik. <a href="https://doi.org/10.4230/LIPIcs.CONCUR.2018.11">https://doi.org/10.4230/LIPIcs.CONCUR.2018.11</a>'
  chicago: Chatterjee, Krishnendu, Amir Kafshdar Goharshady, Rasmus Ibsen-Jensen,
    and Yaron Velner. “Ergodic Mean-Payoff Games for the Analysis of Attacks in Crypto-Currencies,”
    Vol. 118. Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2018. <a href="https://doi.org/10.4230/LIPIcs.CONCUR.2018.11">https://doi.org/10.4230/LIPIcs.CONCUR.2018.11</a>.
  ieee: 'K. Chatterjee, A. K. Goharshady, R. Ibsen-Jensen, and Y. Velner, “Ergodic
    mean-payoff games for the analysis of attacks in crypto-currencies,” presented
    at the CONCUR: Conference on Concurrency Theory, Beijing, China, 2018, vol. 118.'
  ista: 'Chatterjee K, Goharshady AK, Ibsen-Jensen R, Velner Y. 2018. Ergodic mean-payoff
    games for the analysis of attacks in crypto-currencies. CONCUR: Conference on
    Concurrency Theory, LIPIcs, vol. 118, 11.'
  mla: Chatterjee, Krishnendu, et al. <i>Ergodic Mean-Payoff Games for the Analysis
    of Attacks in Crypto-Currencies</i>. Vol. 118, 11, Schloss Dagstuhl - Leibniz-Zentrum
    für Informatik, 2018, doi:<a href="https://doi.org/10.4230/LIPIcs.CONCUR.2018.11">10.4230/LIPIcs.CONCUR.2018.11</a>.
  short: K. Chatterjee, A.K. Goharshady, R. Ibsen-Jensen, Y. Velner, in:, Schloss
    Dagstuhl - Leibniz-Zentrum für Informatik, 2018.
conference:
  end_date: 2018-09-07
  location: Beijing, China
  name: 'CONCUR: Conference on Concurrency Theory'
  start_date: 2018-09-04
date_created: 2018-12-11T11:44:27Z
date_published: 2018-09-01T00:00:00Z
date_updated: 2026-06-09T22:31:07Z
day: '01'
ddc:
- '000'
department:
- _id: KrCh
doi: 10.4230/LIPIcs.CONCUR.2018.11
ec_funded: 1
external_id:
  arxiv:
  - '1806.03108'
file:
- access_level: open_access
  checksum: 68a055b1aaa241cc38375083cf832a7d
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  creator: dernst
  date_created: 2018-12-17T12:08:00Z
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file_date_updated: 2020-07-14T12:47:34Z
has_accepted_license: '1'
intvolume: '       118'
language:
- iso: eng
month: '09'
oa: 1
oa_version: Published Version
project:
- _id: 25892FC0-B435-11E9-9278-68D0E5697425
  grant_number: ICT15-003
  name: Efficient Algorithms for Computer Aided Verification
- _id: 2581B60A-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '279307'
  name: 'Quantitative Graph Games: Theory and Applications'
- _id: 25832EC2-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: S 11407_N23
  name: Rigorous Systems Engineering
- _id: 266EEEC0-B435-11E9-9278-68D0E5697425
  name: Quantitative Game-theoretic Analysis of Blockchain Applications and Smart
    Contracts
publication_identifier:
  isbn:
  - 978-3-95977-087-3
publication_status: published
publisher: Schloss Dagstuhl - Leibniz-Zentrum für Informatik
publist_id: '7988'
quality_controlled: '1'
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title: Ergodic mean-payoff games for the analysis of attacks in crypto-currencies
tmp:
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  short: CC BY (4.0)
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 118
year: '2018'
...
---
_id: '311'
abstract:
- lang: eng
  text: 'Smart contracts are computer programs that are executed by a network of mutually
    distrusting agents, without the need of an external trusted authority. Smart contracts
    handle and transfer assets of considerable value (in the form of crypto-currency
    like Bitcoin). Hence, it is crucial that their implementation is bug-free. We
    identify the utility (or expected payoff) of interacting with such smart contracts
    as the basic and canonical quantitative property for such contracts. We present
    a framework for such quantitative analysis of smart contracts. Such a formal framework
    poses new and novel research challenges in programming languages, as it requires
    modeling of game-theoretic aspects to analyze incentives for deviation from honest
    behavior and modeling utilities which are not specified as standard temporal properties
    such as safety and termination. While game-theoretic incentives have been analyzed
    in the security community, their analysis has been restricted to the very special
    case of stateless games. However, to analyze smart contracts, stateful analysis
    is required as it must account for the different program states of the protocol.
    Our main contributions are as follows: we present (i)~a simplified programming
    language for smart contracts; (ii)~an automatic translation of the programs to
    state-based games; (iii)~an abstraction-refinement approach to solve such games;
    and (iv)~experimental results on real-world-inspired smart contracts.'
acknowledgement: 'The research was partially supported by Vienna Science and Technology
  Fund (WWTF) Project ICT15-003, Austrian Science Fund (FWF) NFN Grant No S11407-N23
  (RiSE/SHiNE), and ERC Starting grant (279307: Graph Games).'
alternative_title:
- LNCS
article_processing_charge: No
author:
- first_name: Krishnendu
  full_name: Chatterjee, Krishnendu
  id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
  last_name: Chatterjee
  orcid: 0000-0002-4561-241X
- first_name: Amir
  full_name: Goharshady, Amir
  id: 391365CE-F248-11E8-B48F-1D18A9856A87
  last_name: Goharshady
  orcid: 0000-0003-1702-6584
- first_name: Yaron
  full_name: Velner, Yaron
  last_name: Velner
citation:
  ama: 'Chatterjee K, Goharshady AK, Velner Y. Quantitative analysis of smart contracts.
    In: Vol 10801. Springer; 2018:739-767. doi:<a href="https://doi.org/10.1007/978-3-319-89884-1_26">10.1007/978-3-319-89884-1_26</a>'
  apa: 'Chatterjee, K., Goharshady, A. K., &#38; Velner, Y. (2018). Quantitative analysis
    of smart contracts (Vol. 10801, pp. 739–767). Presented at the ESOP: European
    Symposium on Programming, Thessaloniki, Greece: Springer. <a href="https://doi.org/10.1007/978-3-319-89884-1_26">https://doi.org/10.1007/978-3-319-89884-1_26</a>'
  chicago: Chatterjee, Krishnendu, Amir Kafshdar Goharshady, and Yaron Velner. “Quantitative
    Analysis of Smart Contracts,” 10801:739–67. Springer, 2018. <a href="https://doi.org/10.1007/978-3-319-89884-1_26">https://doi.org/10.1007/978-3-319-89884-1_26</a>.
  ieee: 'K. Chatterjee, A. K. Goharshady, and Y. Velner, “Quantitative analysis of
    smart contracts,” presented at the ESOP: European Symposium on Programming, Thessaloniki,
    Greece, 2018, vol. 10801, pp. 739–767.'
  ista: 'Chatterjee K, Goharshady AK, Velner Y. 2018. Quantitative analysis of smart
    contracts. ESOP: European Symposium on Programming, LNCS, vol. 10801, 739–767.'
  mla: Chatterjee, Krishnendu, et al. <i>Quantitative Analysis of Smart Contracts</i>.
    Vol. 10801, Springer, 2018, pp. 739–67, doi:<a href="https://doi.org/10.1007/978-3-319-89884-1_26">10.1007/978-3-319-89884-1_26</a>.
  short: K. Chatterjee, A.K. Goharshady, Y. Velner, in:, Springer, 2018, pp. 739–767.
conference:
  end_date: 2018-04-19
  location: Thessaloniki, Greece
  name: 'ESOP: European Symposium on Programming'
  start_date: 2018-04-16
date_created: 2018-12-11T11:45:45Z
date_published: 2018-04-01T00:00:00Z
date_updated: 2026-06-09T22:31:07Z
day: '01'
ddc:
- '000'
department:
- _id: KrCh
doi: 10.1007/978-3-319-89884-1_26
ec_funded: 1
file:
- access_level: open_access
  checksum: 9c8a8338c571903b599b6ca93abd2cce
  content_type: application/pdf
  creator: dernst
  date_created: 2018-12-17T15:45:49Z
  date_updated: 2020-07-14T12:46:00Z
  file_id: '5716'
  file_name: 2018_ESOP_Chatterjee.pdf
  file_size: 1394993
  relation: main_file
file_date_updated: 2020-07-14T12:46:00Z
has_accepted_license: '1'
intvolume: '     10801'
language:
- iso: eng
month: '04'
oa: 1
oa_version: Published Version
page: 739 - 767
project:
- _id: 25892FC0-B435-11E9-9278-68D0E5697425
  grant_number: ICT15-003
  name: Efficient Algorithms for Computer Aided Verification
- _id: 25832EC2-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: S 11407_N23
  name: Rigorous Systems Engineering
- _id: 2581B60A-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '279307'
  name: 'Quantitative Graph Games: Theory and Applications'
publication_status: published
publisher: Springer
publist_id: '7554'
quality_controlled: '1'
related_material:
  record:
  - id: '8934'
    relation: dissertation_contains
    status: public
scopus_import: '1'
status: public
title: Quantitative analysis of smart contracts
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: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 10801
year: '2018'
...
---
_id: '6340'
abstract:
- lang: eng
  text: We  present  a  secure  approach  for  maintaining  andreporting  credit  history  records  on  the  Blockchain.  Our  ap-proach  removes  third-parties  such  as  credit  reporting  agen-cies  from  the  lending  process  and  replaces  them  with  smartcontracts.  This  allows  customers  to  interact  directly  with  thelenders  or  banks  while  ensuring  the  integrity,  unmalleabilityand  privacy  of  their  credit  data.  Additionally,  each  customerhas  full  control  over  complete  or  selective  disclosure  of  hercredit
    records, eliminating the risk of privacy violations or databreaches. Moreover,
    our approach provides strong guaranteesfor the lenders as well. A lender can check
    both correctness andcompleteness of the credit data disclosed to her. This is
    the firstapproach  that  can  perform  all  credit  reporting  tasks  withouta  central  authority  or  changing  the  financial  mechanisms*.
article_processing_charge: No
arxiv: 1
author:
- first_name: Amir Kafshdar
  full_name: Goharshady, Amir Kafshdar
  id: 391365CE-F248-11E8-B48F-1D18A9856A87
  last_name: Goharshady
  orcid: 0000-0003-1702-6584
- first_name: Ali
  full_name: Behrouz, Ali
  last_name: Behrouz
- first_name: Krishnendu
  full_name: Chatterjee, Krishnendu
  id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
  last_name: Chatterjee
  orcid: 0000-0002-4561-241X
citation:
  ama: 'Goharshady AK, Behrouz A, Chatterjee K. Secure Credit Reporting on the Blockchain.
    In: <i>Proceedings of the IEEE International Conference on Blockchain</i>. IEEE;
    2018:1343-1348. doi:<a href="https://doi.org/10.1109/Cybermatics_2018.2018.00231">10.1109/Cybermatics_2018.2018.00231</a>'
  apa: 'Goharshady, A. K., Behrouz, A., &#38; Chatterjee, K. (2018). Secure Credit
    Reporting on the Blockchain. In <i>Proceedings of the IEEE International Conference
    on Blockchain</i> (pp. 1343–1348). Halifax, Canada: IEEE. <a href="https://doi.org/10.1109/Cybermatics_2018.2018.00231">https://doi.org/10.1109/Cybermatics_2018.2018.00231</a>'
  chicago: Goharshady, Amir Kafshdar, Ali Behrouz, and Krishnendu Chatterjee. “Secure
    Credit Reporting on the Blockchain.” In <i>Proceedings of the IEEE International
    Conference on Blockchain</i>, 1343–48. IEEE, 2018. <a href="https://doi.org/10.1109/Cybermatics_2018.2018.00231">https://doi.org/10.1109/Cybermatics_2018.2018.00231</a>.
  ieee: A. K. Goharshady, A. Behrouz, and K. Chatterjee, “Secure Credit Reporting
    on the Blockchain,” in <i>Proceedings of the IEEE International Conference on
    Blockchain</i>, Halifax, Canada, 2018, pp. 1343–1348.
  ista: Goharshady AK, Behrouz A, Chatterjee K. 2018. Secure Credit Reporting on the
    Blockchain. Proceedings of the IEEE International Conference on Blockchain. IEEE
    International Conference on Blockchain, 1343–1348.
  mla: Goharshady, Amir Kafshdar, et al. “Secure Credit Reporting on the Blockchain.”
    <i>Proceedings of the IEEE International Conference on Blockchain</i>, IEEE, 2018,
    pp. 1343–48, doi:<a href="https://doi.org/10.1109/Cybermatics_2018.2018.00231">10.1109/Cybermatics_2018.2018.00231</a>.
  short: A.K. Goharshady, A. Behrouz, K. Chatterjee, in:, Proceedings of the IEEE
    International Conference on Blockchain, IEEE, 2018, pp. 1343–1348.
conference:
  end_date: 2018-08-03
  location: Halifax, Canada
  name: IEEE International Conference on Blockchain
  start_date: 2018-07-30
date_created: 2019-04-18T10:37:35Z
date_published: 2018-09-01T00:00:00Z
date_updated: 2026-06-09T22:31:07Z
day: '01'
ddc:
- '000'
department:
- _id: KrCh
doi: 10.1109/Cybermatics_2018.2018.00231
ec_funded: 1
external_id:
  arxiv:
  - '1805.09104'
  isi:
  - '000481634500196'
file:
- access_level: open_access
  checksum: b25c9bb7cf6e7e6634e692d26d41ead8
  content_type: application/pdf
  creator: akafshda
  date_created: 2019-04-18T10:36:39Z
  date_updated: 2020-07-14T12:47:27Z
  file_id: '6341'
  file_name: blockchain2018.pdf
  file_size: 624338
  relation: main_file
file_date_updated: 2020-07-14T12:47:27Z
has_accepted_license: '1'
isi: 1
language:
- iso: eng
month: '09'
oa: 1
oa_version: Submitted Version
page: 1343-1348
project:
- _id: 25892FC0-B435-11E9-9278-68D0E5697425
  grant_number: ICT15-003
  name: Efficient Algorithms for Computer Aided Verification
- _id: 266EEEC0-B435-11E9-9278-68D0E5697425
  name: Quantitative Game-theoretic Analysis of Blockchain Applications and Smart
    Contracts
- _id: 2581B60A-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '279307'
  name: 'Quantitative Graph Games: Theory and Applications'
- _id: 25832EC2-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: S 11407_N23
  name: Rigorous Systems Engineering
publication: Proceedings of the IEEE International Conference on Blockchain
publication_identifier:
  isbn:
  - '978-1-5386-7975-3 '
publication_status: published
publisher: IEEE
quality_controlled: '1'
related_material:
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  - id: '8934'
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    status: public
scopus_import: '1'
status: public
title: Secure Credit Reporting on the Blockchain
tmp:
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  short: CC BY-NC-ND (4.0)
type: conference
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
year: '2018'
...
---
_id: '6009'
abstract:
- lang: eng
  text: "We study algorithmic questions wrt algebraic path properties in concurrent
    systems, where the transitions of the system are labeled from a complete, closed
    semiring. The algebraic path properties can model dataflow analysis problems,
    the shortest path problem, and many other natural problems that arise in program
    analysis. We consider that each component of the concurrent system is a graph
    with constant treewidth, a property satisfied by the controlflow graphs of most
    programs. We allow for multiple possible queries, which arise naturally in demand
    driven dataflow analysis. The study of multiple queries allows us to consider
    the tradeoff between the resource usage of the one-time preprocessing and for
    each individual query. The traditional approach constructs the product graph of
    all components and applies the best-known graph algorithm on the product. In this
    approach, even the answer to a single query requires the transitive closure (i.e.,
    the results of all possible queries), which provides no room for tradeoff between
    preprocessing and query time.\r\nOur main contributions are algorithms that significantly
    improve the worst-case running time of the traditional approach, and provide various
    tradeoffs depending on the number of queries. For example, in a concurrent system
    of two components, the traditional approach requires hexic time in the worst case
    for answering one query as well as computing the transitive closure, whereas we
    show that with one-time preprocessing in almost cubic time, each subsequent query
    can be answered in at most linear time, and even the transitive closure can be
    computed in almost quartic time. Furthermore, we establish conditional optimality
    results showing that the worst-case running time of our algorithms cannot be improved
    without achieving major breakthroughs in graph algorithms (i.e., improving the
    worst-case bound for the shortest path problem in general graphs). Preliminary
    experimental results show that our algorithms perform favorably on several benchmarks.\r\n"
article_number: '9'
article_processing_charge: No
arxiv: 1
author:
- first_name: Krishnendu
  full_name: Chatterjee, Krishnendu
  id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
  last_name: Chatterjee
  orcid: 0000-0002-4561-241X
- first_name: Rasmus
  full_name: Ibsen-Jensen, Rasmus
  id: 3B699956-F248-11E8-B48F-1D18A9856A87
  last_name: Ibsen-Jensen
  orcid: 0000-0003-4783-0389
- first_name: Amir Kafshdar
  full_name: Goharshady, Amir Kafshdar
  id: 391365CE-F248-11E8-B48F-1D18A9856A87
  last_name: Goharshady
  orcid: 0000-0003-1702-6584
- first_name: Andreas
  full_name: Pavlogiannis, Andreas
  id: 49704004-F248-11E8-B48F-1D18A9856A87
  last_name: Pavlogiannis
  orcid: 0000-0002-8943-0722
citation:
  ama: Chatterjee K, Ibsen-Jensen R, Goharshady AK, Pavlogiannis A. Algorithms for
    algebraic path properties in concurrent systems of constant treewidth components.
    <i>ACM Transactions on Programming Languages and Systems</i>. 2018;40(3). doi:<a
    href="https://doi.org/10.1145/3210257">10.1145/3210257</a>
  apa: Chatterjee, K., Ibsen-Jensen, R., Goharshady, A. K., &#38; Pavlogiannis, A.
    (2018). Algorithms for algebraic path properties in concurrent systems of constant
    treewidth components. <i>ACM Transactions on Programming Languages and Systems</i>.
    Association for Computing Machinery. <a href="https://doi.org/10.1145/3210257">https://doi.org/10.1145/3210257</a>
  chicago: Chatterjee, Krishnendu, Rasmus Ibsen-Jensen, Amir Kafshdar Goharshady,
    and Andreas Pavlogiannis. “Algorithms for Algebraic Path Properties in Concurrent
    Systems of Constant Treewidth Components.” <i>ACM Transactions on Programming
    Languages and Systems</i>. Association for Computing Machinery, 2018. <a href="https://doi.org/10.1145/3210257">https://doi.org/10.1145/3210257</a>.
  ieee: K. Chatterjee, R. Ibsen-Jensen, A. K. Goharshady, and A. Pavlogiannis, “Algorithms
    for algebraic path properties in concurrent systems of constant treewidth components,”
    <i>ACM Transactions on Programming Languages and Systems</i>, vol. 40, no. 3.
    Association for Computing Machinery, 2018.
  ista: Chatterjee K, Ibsen-Jensen R, Goharshady AK, Pavlogiannis A. 2018. Algorithms
    for algebraic path properties in concurrent systems of constant treewidth components.
    ACM Transactions on Programming Languages and Systems. 40(3), 9.
  mla: Chatterjee, Krishnendu, et al. “Algorithms for Algebraic Path Properties in
    Concurrent Systems of Constant Treewidth Components.” <i>ACM Transactions on Programming
    Languages and Systems</i>, vol. 40, no. 3, 9, Association for Computing Machinery,
    2018, doi:<a href="https://doi.org/10.1145/3210257">10.1145/3210257</a>.
  short: K. Chatterjee, R. Ibsen-Jensen, A.K. Goharshady, A. Pavlogiannis, ACM Transactions
    on Programming Languages and Systems 40 (2018).
corr_author: '1'
date_created: 2019-02-14T14:31:52Z
date_published: 2018-08-01T00:00:00Z
date_updated: 2026-06-09T22:31:07Z
day: '01'
department:
- _id: KrCh
doi: 10.1145/3210257
ec_funded: 1
external_id:
  arxiv:
  - '1510.07565'
  isi:
  - '000444694800001'
intvolume: '        40'
isi: 1
issue: '3'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://arxiv.org/abs/1510.07565
month: '08'
oa: 1
oa_version: Preprint
project:
- _id: 2584A770-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: P 23499-N23
  name: Modern Graph Algorithmic Techniques in Formal Verification
- _id: 25832EC2-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: S 11407_N23
  name: Rigorous Systems Engineering
- _id: 2581B60A-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '279307'
  name: 'Quantitative Graph Games: Theory and Applications'
publication: ACM Transactions on Programming Languages and Systems
publication_identifier:
  issn:
  - 0164-0925
publication_status: published
publisher: Association for Computing Machinery
quality_controlled: '1'
related_material:
  record:
  - id: '5441'
    relation: earlier_version
    status: public
  - id: '5442'
    relation: earlier_version
    status: public
  - id: '1437'
    relation: earlier_version
    status: public
  - id: '8934'
    relation: dissertation_contains
    status: public
scopus_import: '1'
status: public
title: Algorithms for algebraic path properties in concurrent systems of constant
  treewidth components
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 40
year: '2018'
...
---
_id: '5977'
abstract:
- lang: eng
  text: 'We consider the stochastic shortest path (SSP)problem for succinct Markov
    decision processes(MDPs), where the MDP consists of a set of vari-ables, and a
    set of nondeterministic rules that up-date the variables. First, we show that
    several ex-amples from the AI literature can be modeled assuccinct MDPs.  Then
    we present computationalapproaches for upper and lower bounds for theSSP problem:
    (a) for computing upper bounds, ourmethod is polynomial-time in the implicit descrip-tion
    of the MDP; (b) for lower bounds, we present apolynomial-time (in the size of
    the implicit descrip-tion) reduction to quadratic programming. Our ap-proach is
    applicable even to infinite-state MDPs.Finally, we present experimental results
    to demon-strate the effectiveness of our approach on severalclassical examples
    from the AI literature.'
article_processing_charge: No
arxiv: 1
author:
- first_name: Krishnendu
  full_name: Chatterjee, Krishnendu
  id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
  last_name: Chatterjee
  orcid: 0000-0002-4561-241X
- first_name: Hongfei
  full_name: Fu, Hongfei
  id: 3AAD03D6-F248-11E8-B48F-1D18A9856A87
  last_name: Fu
- first_name: Amir
  full_name: Goharshady, Amir
  id: 391365CE-F248-11E8-B48F-1D18A9856A87
  last_name: Goharshady
  orcid: 0000-0003-1702-6584
- first_name: Nastaran
  full_name: Okati, Nastaran
  last_name: Okati
citation:
  ama: 'Chatterjee K, Fu H, Goharshady AK, Okati N. Computational approaches for stochastic
    shortest path on succinct MDPs. In: <i>Proceedings of the Twenty-Seventh International
    Joint Conference on Artificial Intelligence</i>. Vol 2018. IJCAI; 2018:4700-4707.
    doi:<a href="https://doi.org/10.24963/ijcai.2018/653">10.24963/ijcai.2018/653</a>'
  apa: 'Chatterjee, K., Fu, H., Goharshady, A. K., &#38; Okati, N. (2018). Computational
    approaches for stochastic shortest path on succinct MDPs. In <i>Proceedings of
    the Twenty-Seventh International Joint Conference on Artificial Intelligence</i>
    (Vol. 2018, pp. 4700–4707). Stockholm, Sweden: IJCAI. <a href="https://doi.org/10.24963/ijcai.2018/653">https://doi.org/10.24963/ijcai.2018/653</a>'
  chicago: Chatterjee, Krishnendu, Hongfei Fu, Amir Kafshdar Goharshady, and Nastaran
    Okati. “Computational Approaches for Stochastic Shortest Path on Succinct MDPs.”
    In <i>Proceedings of the Twenty-Seventh International Joint Conference on Artificial
    Intelligence</i>, 2018:4700–4707. IJCAI, 2018. <a href="https://doi.org/10.24963/ijcai.2018/653">https://doi.org/10.24963/ijcai.2018/653</a>.
  ieee: K. Chatterjee, H. Fu, A. K. Goharshady, and N. Okati, “Computational approaches
    for stochastic shortest path on succinct MDPs,” in <i>Proceedings of the Twenty-Seventh
    International Joint Conference on Artificial Intelligence</i>, Stockholm, Sweden,
    2018, vol. 2018, pp. 4700–4707.
  ista: 'Chatterjee K, Fu H, Goharshady AK, Okati N. 2018. Computational approaches
    for stochastic shortest path on succinct MDPs. Proceedings of the Twenty-Seventh
    International Joint Conference on Artificial Intelligence. IJCAI: International
    Joint Conference on Artificial Intelligence vol. 2018, 4700–4707.'
  mla: Chatterjee, Krishnendu, et al. “Computational Approaches for Stochastic Shortest
    Path on Succinct MDPs.” <i>Proceedings of the Twenty-Seventh International Joint
    Conference on Artificial Intelligence</i>, vol. 2018, IJCAI, 2018, pp. 4700–07,
    doi:<a href="https://doi.org/10.24963/ijcai.2018/653">10.24963/ijcai.2018/653</a>.
  short: K. Chatterjee, H. Fu, A.K. Goharshady, N. Okati, in:, Proceedings of the
    Twenty-Seventh International Joint Conference on Artificial Intelligence, IJCAI,
    2018, pp. 4700–4707.
conference:
  end_date: 2018-07-19
  location: Stockholm, Sweden
  name: 'IJCAI: International Joint Conference on Artificial Intelligence'
  start_date: 2018-07-13
date_created: 2019-02-13T13:26:27Z
date_published: 2018-07-17T00:00:00Z
date_updated: 2026-06-09T22:31:08Z
day: '17'
department:
- _id: KrCh
doi: 10.24963/ijcai.2018/653
ec_funded: 1
external_id:
  arxiv:
  - '1804.08984'
  isi:
  - '000764175404118'
intvolume: '      2018'
isi: 1
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://arxiv.org/abs/1804.08984
month: '07'
oa: 1
oa_version: Preprint
page: 4700-4707
project:
- _id: 25892FC0-B435-11E9-9278-68D0E5697425
  grant_number: ICT15-003
  name: Efficient Algorithms for Computer Aided Verification
- _id: 25832EC2-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: S 11407_N23
  name: Rigorous Systems Engineering
- _id: 2581B60A-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '279307'
  name: 'Quantitative Graph Games: Theory and Applications'
publication: Proceedings of the Twenty-Seventh International Joint Conference on Artificial
  Intelligence
publication_identifier:
  isbn:
  - '9780999241127'
  issn:
  - 1045-0823
publication_status: published
publisher: IJCAI
quality_controlled: '1'
related_material:
  record:
  - id: '8934'
    relation: dissertation_contains
    status: public
scopus_import: '1'
status: public
title: Computational approaches for stochastic shortest path on succinct MDPs
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 2018
year: '2018'
...
---
_id: '442'
abstract:
- lang: eng
  text: The rapid auxin-triggered growth of the Arabidopsis hypocotyls involves the
    nuclear TIR1/AFB-Aux/IAA signaling and is accompanied by acidification of the
    apoplast and cell walls (Fendrych et al., 2016). Here, we describe in detail the
    method for analysis of the elongation and the TIR1/AFB-Aux/IAA-dependent auxin
    response in hypocotyl segments as well as the determination of relative values
    of the cell wall pH.
acknowledgement: 'This protocol was adapted from Fendrych et al., 2016. This project
  has received funding from the European Union’s Horizon 2020 research and innovation
  programme under the Marie Skłodowska-Curie Grant Agreement No. 665385, and Austrian
  Science Fund (FWF) [M 2128-B21]. '
article_processing_charge: No
article_type: original
author:
- first_name: Lanxin
  full_name: Li, Lanxin
  id: 367EF8FA-F248-11E8-B48F-1D18A9856A87
  last_name: Li
  orcid: 0000-0002-5607-272X
- first_name: Gabriel
  full_name: Krens, Gabriel
  id: 2B819732-F248-11E8-B48F-1D18A9856A87
  last_name: Krens
  orcid: 0000-0003-4761-5996
- first_name: Matyas
  full_name: Fendrych, Matyas
  id: 43905548-F248-11E8-B48F-1D18A9856A87
  last_name: Fendrych
  orcid: 0000-0002-9767-8699
- first_name: Jirí
  full_name: Friml, Jirí
  id: 4159519E-F248-11E8-B48F-1D18A9856A87
  last_name: Friml
  orcid: 0000-0002-8302-7596
citation:
  ama: Li L, Krens G, Fendrych M, Friml J. Real-time analysis of auxin response, cell
    wall pH and elongation in Arabidopsis thaliana Hypocotyls. <i>Bio-protocol</i>.
    2018;8(1). doi:<a href="https://doi.org/10.21769/BioProtoc.2685">10.21769/BioProtoc.2685</a>
  apa: Li, L., Krens, G., Fendrych, M., &#38; Friml, J. (2018). Real-time analysis
    of auxin response, cell wall pH and elongation in Arabidopsis thaliana Hypocotyls.
    <i>Bio-Protocol</i>. Bio-protocol. <a href="https://doi.org/10.21769/BioProtoc.2685">https://doi.org/10.21769/BioProtoc.2685</a>
  chicago: Li, Lanxin, Gabriel Krens, Matyas Fendrych, and Jiří Friml. “Real-Time
    Analysis of Auxin Response, Cell Wall PH and Elongation in Arabidopsis Thaliana
    Hypocotyls.” <i>Bio-Protocol</i>. Bio-protocol, 2018. <a href="https://doi.org/10.21769/BioProtoc.2685">https://doi.org/10.21769/BioProtoc.2685</a>.
  ieee: L. Li, G. Krens, M. Fendrych, and J. Friml, “Real-time analysis of auxin response,
    cell wall pH and elongation in Arabidopsis thaliana Hypocotyls,” <i>Bio-protocol</i>,
    vol. 8, no. 1. Bio-protocol, 2018.
  ista: Li L, Krens G, Fendrych M, Friml J. 2018. Real-time analysis of auxin response,
    cell wall pH and elongation in Arabidopsis thaliana Hypocotyls. Bio-protocol.
    8(1).
  mla: Li, Lanxin, et al. “Real-Time Analysis of Auxin Response, Cell Wall PH and
    Elongation in Arabidopsis Thaliana Hypocotyls.” <i>Bio-Protocol</i>, vol. 8, no.
    1, Bio-protocol, 2018, doi:<a href="https://doi.org/10.21769/BioProtoc.2685">10.21769/BioProtoc.2685</a>.
  short: L. Li, G. Krens, M. Fendrych, J. Friml, Bio-Protocol 8 (2018).
corr_author: '1'
date_created: 2018-12-11T11:46:30Z
date_published: 2018-01-05T00:00:00Z
date_updated: 2026-06-09T22:31:09Z
day: '05'
ddc:
- '576'
- '581'
department:
- _id: JiFr
- _id: Bio
doi: 10.21769/BioProtoc.2685
ec_funded: 1
file:
- access_level: open_access
  checksum: 6644ba698206eda32b0abf09128e63e3
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T10:17:43Z
  date_updated: 2020-07-14T12:46:29Z
  file_id: '5299'
  file_name: IST-2018-970-v1+1_2018_Lanxin_Real-time_analysis.pdf
  file_size: 11352389
  relation: main_file
file_date_updated: 2020-07-14T12:46:29Z
has_accepted_license: '1'
intvolume: '         8'
issue: '1'
language:
- iso: eng
month: '01'
oa: 1
oa_version: Published Version
project:
- _id: 2564DBCA-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '665385'
  name: International IST Doctoral Program
publication: Bio-protocol
publication_identifier:
  eissn:
  - 2331-8325
publication_status: published
publisher: Bio-protocol
publist_id: '7381'
pubrep_id: '970'
quality_controlled: '1'
related_material:
  record:
  - id: '10083'
    relation: dissertation_contains
    status: public
status: public
title: Real-time analysis of auxin response, cell wall pH and elongation in Arabidopsis
  thaliana Hypocotyls
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: '2018'
...
---
_id: '1146'
abstract:
- lang: eng
  text: 'Aim: The present study was to compare the effects of nicotinic acid and nicotinamide
    on the plasma methyl donors, choline and betaine. Methods: Thirty adult subjects
    were randomly divided into three groups of equal size, and orally received purified
    water (C group), nicotinic acid (300 mg, NA group) or nicotinamide (300 mg, NM
    group). Plasma nicotinamide, N 1-methylnicotinamide, homocysteine, betaine and
    choline levels before and 1.5-h and 3-h post-dosing, plasma normetanephrine and
    metanephrine concentrations at 3-h post-dosing, and the urinary excretion of N
    1-methyl-2-pyridone-5-carboxamide during the test period were examined. Results:
    The level of 3-h plasma nicotinamide, N 1-methylnicotinamide, homocysteine, the
    urinary excretion of N 1-methyl-2-pyridone-5-carboxamide and pulse pressure (PP)
    in the NM group was 221%, 3972%, 61%, 1728% and 21.2% higher than that of the
    control group (P &lt; 0.01, except homocysteine and PP P &lt; 0.05), while the
    3-h plasma betaine, normetanephrine and metanephrine level in the NM group was
    24.4%, 9.4% and 11.7% lower (P &lt; 0.05, except betaine P &lt; 0.01), without
    significant difference in choline levels. Similar but less pronounced changes
    were observed in the NA group, with a lower level of 3-h plasma N 1-methylnicotinamide
    (1.90 ± 0.20 μmol/l vs. 3.62 ± 0.27 μmol/l, P &lt; 0.01) and homocysteine (12.85
    ± 1.39 μmol/l vs. 18.08 ± 1.02 μmol/l, P &lt; 0.05) but a higher level of betaine
    (27.44 ± 0.71 μmol/l vs. 23.52 ± 0.61 μmol/l, P &lt; 0.05) than that of the NM
    group. Conclusion: The degradation of nicotinamide consumes more betaine than
    that of nicotinic acid at identical doses. This difference should be taken into
    consideration in niacin fortification. © 2016 Elsevier Ltd and European Society
    for Clinical Nutrition and Metabolism.'
acknowledgement: We thank all the participants for their contribution to this study
  and volunteers from the Nursing School of Dalian University for their supporting
  to collect blood and urine samples of the participants. We also thank Dr. Yasunori
  Takayama from National Institute for Physiological Sciences of Japan for his kind
  help.
article_processing_charge: No
author:
- first_name: Wuping
  full_name: Sun, Wuping
  last_name: Sun
- first_name: Ming-Zhu
  full_name: Zhai, Ming-Zhu
  id: 34009CFA-F248-11E8-B48F-1D18A9856A87
  last_name: Zhai
- first_name: Da
  full_name: Li, Da
  last_name: Li
- first_name: Yiming
  full_name: Zhou, Yiming
  last_name: Zhou
- first_name: Nana
  full_name: Chen, Nana
  last_name: Chen
- first_name: Ming
  full_name: Guo, Ming
  last_name: Guo
- first_name: Shisheng
  full_name: Zhou, Shisheng
  last_name: Zhou
citation:
  ama: Sun W, Zhai M-Z, Li D, et al. Comparison of the effects of nicotinic acid and
    nicotinamide degradation on plasma betaine and choline levels. <i>Clinical Nutrition</i>.
    2017;36(4):1136-1142. doi:<a href="https://doi.org/10.1016/j.clnu.2016.07.016">10.1016/j.clnu.2016.07.016</a>
  apa: Sun, W., Zhai, M.-Z., Li, D., Zhou, Y., Chen, N., Guo, M., &#38; Zhou, S. (2017).
    Comparison of the effects of nicotinic acid and nicotinamide degradation on plasma
    betaine and choline levels. <i>Clinical Nutrition</i>. Elsevier. <a href="https://doi.org/10.1016/j.clnu.2016.07.016">https://doi.org/10.1016/j.clnu.2016.07.016</a>
  chicago: Sun, Wuping, Ming-Zhu Zhai, Da Li, Yiming Zhou, Nana Chen, Ming Guo, and
    Shisheng Zhou. “Comparison of the Effects of Nicotinic Acid and Nicotinamide Degradation
    on Plasma Betaine and Choline Levels.” <i>Clinical Nutrition</i>. Elsevier, 2017.
    <a href="https://doi.org/10.1016/j.clnu.2016.07.016">https://doi.org/10.1016/j.clnu.2016.07.016</a>.
  ieee: W. Sun <i>et al.</i>, “Comparison of the effects of nicotinic acid and nicotinamide
    degradation on plasma betaine and choline levels,” <i>Clinical Nutrition</i>,
    vol. 36, no. 4. Elsevier, pp. 1136–1142, 2017.
  ista: Sun W, Zhai M-Z, Li D, Zhou Y, Chen N, Guo M, Zhou S. 2017. Comparison of
    the effects of nicotinic acid and nicotinamide degradation on plasma betaine and
    choline levels. Clinical Nutrition. 36(4), 1136–1142.
  mla: Sun, Wuping, et al. “Comparison of the Effects of Nicotinic Acid and Nicotinamide
    Degradation on Plasma Betaine and Choline Levels.” <i>Clinical Nutrition</i>,
    vol. 36, no. 4, Elsevier, 2017, pp. 1136–42, doi:<a href="https://doi.org/10.1016/j.clnu.2016.07.016">10.1016/j.clnu.2016.07.016</a>.
  short: W. Sun, M.-Z. Zhai, D. Li, Y. Zhou, N. Chen, M. Guo, S. Zhou, Clinical Nutrition
    36 (2017) 1136–1142.
date_created: 2018-12-11T11:50:24Z
date_published: 2017-08-01T00:00:00Z
date_updated: 2025-09-22T09:59:49Z
day: '01'
department:
- _id: RySh
doi: 10.1016/j.clnu.2016.07.016
external_id:
  isi:
  - '000404315200029'
intvolume: '        36'
isi: 1
issue: '4'
language:
- iso: eng
month: '08'
oa_version: None
page: 1136-1142
publication: Clinical Nutrition
publication_identifier:
  issn:
  - 0261-5614
publication_status: published
publisher: Elsevier
publist_id: '6212'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Comparison of the effects of nicotinic acid and nicotinamide degradation on
  plasma betaine and choline levels
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 36
year: '2017'
...
---
_id: '11518'
abstract:
- lang: eng
  text: "We present spectroscopic follow-up observations of CR7 with ALMA, targeted
    at constraining the infrared (IR) continuum and [C II]158 mm line-emission at
    high spatial resolution matched to the HST/WFC3 imaging. CR7 is a luminous Lyα
    emitting galaxy at z = 6.6 that consists of three separated UV-continuum components.
    Our observations reveal several well-separated components of [C II] emission.
    The two most luminous components in [C II] coincide with the brightest UV components
    (A and B), blueshifted by »150 km s−1 with respect to the\r\npeak of Lyα emission.
    Other [C II] components are observed close to UV clumps B and C and are blueshifted
    by »300 and ≈80 km s−1 with respect to the systemic redshift. We do not detect
    FIR continuum emission due to dust with a 3σ limiting luminosity LIR T L d 35
    K 3.1 10 = <´ 10 ( ) . This allows us to mitigate uncertainties in the dust-corrected
    SFR and derive SFRs for the three UV clumps A, B, and C of 28, 5, and 7 M yr−1.
    All clumps have [C II] luminosities consistent within the scatter observed in
    the local relation between SFR and L[ ] C II , implying that strong Lyα emission
    does not necessarily anti-correlate with [C II] luminosity. Combining\r\nour measurements
    with the literature, we show that galaxies with blue UV slopes have weaker [C
    II] emission at fixed SFR, potentially due to their lower metallicities and/or
    higher photoionization. Comparison with hydrodynamical simulations suggests that
    CR7ʼs clumps have metallicities of 0.1 Z Z 0.2 < < . The observed ISM structure
    of CR7 indicates that we are likely witnessing the build up of a central galaxy
    in the early universe through complex accretion of satellites."
acknowledgement: 'We thank the referee for their constructive comments, which have
  helped improve the quality and clarity of this work. We thank Raffaella Schneider
  for comments on an earlier version of this paper. We thank Leindert Boogaard, Steven
  Bos, Rychard Bouwens, and Renske Smit for discussions. J.M. acknowledges the support
  of a Huygens PhD fellowship from Leiden University. D.S. acknowledges financial
  support from the Netherlands Organisation for Scientific research (NWO) through
  a Veni fellowship and from Lancaster University through an Early Career Internal
  Grant A100679. A.F. acknowledges support from the ERC Advanced Grant INTERSTELLAR
  H2020/740120. B.D. acknowledges financial support from NASA through the Astrophysics
  Data Analysis Program (ADAP), grant number NNX12AE20G. Based on observations made
  with ESO Telescopes at the La Silla Paranal Observatory under programme ID 294.A-5018.
  This paper makes use of the following ALMA data: ADS/JAO.ALMA#2015.1.00122.S. ALMA
  is a partnership of ESO (representing its member states), NSF (USA), and NINS (Japan),
  together with NRC (Canada) and NSC and ASIAA (Taiwan), and KASI (Republic of Korea),
  in cooperation with the Republic of Chile. The Joint ALMA Observatory is operated
  by ESO, AUI/NRAO, and NAOJ.'
article_number: '145'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Jorryt J
  full_name: Matthee, Jorryt J
  id: 7439a258-f3c0-11ec-9501-9df22fe06720
  last_name: Matthee
  orcid: 0000-0003-2871-127X
- first_name: D.
  full_name: Sobral, D.
  last_name: Sobral
- first_name: F.
  full_name: Boone, F.
  last_name: Boone
- first_name: H.
  full_name: Röttgering, H.
  last_name: Röttgering
- first_name: D.
  full_name: Schaerer, D.
  last_name: Schaerer
- first_name: M.
  full_name: Girard, M.
  last_name: Girard
- first_name: A.
  full_name: Pallottini, A.
  last_name: Pallottini
- first_name: L.
  full_name: Vallini, L.
  last_name: Vallini
- first_name: A.
  full_name: Ferrara, A.
  last_name: Ferrara
- first_name: B.
  full_name: Darvish, B.
  last_name: Darvish
- first_name: B.
  full_name: Mobasher, B.
  last_name: Mobasher
citation:
  ama: Matthee JJ, Sobral D, Boone F, et al. ALMA reveals metals yet no dust within
    multiple components in CR7. <i>The Astrophysical Journal</i>. 2017;851(2). doi:<a
    href="https://doi.org/10.3847/1538-4357/aa9931">10.3847/1538-4357/aa9931</a>
  apa: Matthee, J. J., Sobral, D., Boone, F., Röttgering, H., Schaerer, D., Girard,
    M., … Mobasher, B. (2017). ALMA reveals metals yet no dust within multiple components
    in CR7. <i>The Astrophysical Journal</i>. IOP Publishing. <a href="https://doi.org/10.3847/1538-4357/aa9931">https://doi.org/10.3847/1538-4357/aa9931</a>
  chicago: Matthee, Jorryt J, D. Sobral, F. Boone, H. Röttgering, D. Schaerer, M.
    Girard, A. Pallottini, et al. “ALMA Reveals Metals yet No Dust within Multiple
    Components in CR7.” <i>The Astrophysical Journal</i>. IOP Publishing, 2017. <a
    href="https://doi.org/10.3847/1538-4357/aa9931">https://doi.org/10.3847/1538-4357/aa9931</a>.
  ieee: J. J. Matthee <i>et al.</i>, “ALMA reveals metals yet no dust within multiple
    components in CR7,” <i>The Astrophysical Journal</i>, vol. 851, no. 2. IOP Publishing,
    2017.
  ista: Matthee JJ, Sobral D, Boone F, Röttgering H, Schaerer D, Girard M, Pallottini
    A, Vallini L, Ferrara A, Darvish B, Mobasher B. 2017. ALMA reveals metals yet
    no dust within multiple components in CR7. The Astrophysical Journal. 851(2),
    145.
  mla: Matthee, Jorryt J., et al. “ALMA Reveals Metals yet No Dust within Multiple
    Components in CR7.” <i>The Astrophysical Journal</i>, vol. 851, no. 2, 145, IOP
    Publishing, 2017, doi:<a href="https://doi.org/10.3847/1538-4357/aa9931">10.3847/1538-4357/aa9931</a>.
  short: J.J. Matthee, D. Sobral, F. Boone, H. Röttgering, D. Schaerer, M. Girard,
    A. Pallottini, L. Vallini, A. Ferrara, B. Darvish, B. Mobasher, The Astrophysical
    Journal 851 (2017).
date_created: 2022-07-07T08:48:04Z
date_published: 2017-12-21T00:00:00Z
date_updated: 2024-10-14T11:32:14Z
day: '21'
doi: 10.3847/1538-4357/aa9931
extern: '1'
external_id:
  arxiv:
  - '1709.06569'
intvolume: '       851'
issue: '2'
keyword:
- Space and Planetary Science
- Astronomy and Astrophysics
- dark ages
- reionization
- 'first stars – galaxies: formation – galaxies: high-redshift – galaxies: ISM – galaxies:
  kinematics and dynamics'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://arxiv.org/abs/1709.06569
month: '12'
oa: 1
oa_version: Preprint
publication: The Astrophysical Journal
publication_identifier:
  eissn:
  - 1538-4357
  issn:
  - 0004-637X
publication_status: published
publisher: IOP Publishing
quality_controlled: '1'
scopus_import: '1'
status: public
title: ALMA reveals metals yet no dust within multiple components in CR7
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 851
year: '2017'
...
---
_id: '1152'
abstract:
- lang: eng
  text: We propose a new memetic strategy that can solve the multi-physics, complex
    inverse problems, formulated as the multi-objective optimization ones, in which
    objectives are misfits between the measured and simulated states of various governing
    processes. The multi-deme structure of the strategy allows for both, intensive,
    relatively cheap exploration with a moderate accuracy and more accurate search
    many regions of Pareto set in parallel. The special type of selection operator
    prefers the coherent alternative solutions, eliminating artifacts appearing in
    the particular processes. The additional accuracy increment is obtained by the
    parallel convex searches applied to the local scalarizations of the misfit vector.
    The strategy is dedicated for solving ill-conditioned problems, for which inverting
    the single physical process can lead to the ambiguous results. The skill of the
    selection in artifact elimination is shown on the benchmark problem, while the
    whole strategy was applied for identification of oil deposits, where the misfits
    are related to various frequencies of the magnetic and electric waves of the magnetotelluric
    measurements. 2016 Elsevier B.V.
article_processing_charge: No
author:
- first_name: Ewa P
  full_name: Gajda-Zagorska, Ewa P
  id: 47794CF0-F248-11E8-B48F-1D18A9856A87
  last_name: Gajda-Zagorska
- first_name: Robert
  full_name: Schaefer, Robert
  last_name: Schaefer
- first_name: Maciej
  full_name: Smołka, Maciej
  last_name: Smołka
- first_name: David
  full_name: Pardo, David
  last_name: Pardo
- first_name: Julen
  full_name: Alvarez Aramberri, Julen
  last_name: Alvarez Aramberri
citation:
  ama: Gajda-Zagorska EP, Schaefer R, Smołka M, Pardo D, Alvarez Aramberri J. A multi
    objective memetic inverse solver reinforced by local optimization methods. <i>Journal
    of Computational Science</i>. 2017;18:85-94. doi:<a href="https://doi.org/10.1016/j.jocs.2016.06.007">10.1016/j.jocs.2016.06.007</a>
  apa: Gajda-Zagorska, E. P., Schaefer, R., Smołka, M., Pardo, D., &#38; Alvarez Aramberri,
    J. (2017). A multi objective memetic inverse solver reinforced by local optimization
    methods. <i>Journal of Computational Science</i>. Elsevier. <a href="https://doi.org/10.1016/j.jocs.2016.06.007">https://doi.org/10.1016/j.jocs.2016.06.007</a>
  chicago: Gajda-Zagorska, Ewa P, Robert Schaefer, Maciej Smołka, David Pardo, and
    Julen Alvarez Aramberri. “A Multi Objective Memetic Inverse Solver Reinforced
    by Local Optimization Methods.” <i>Journal of Computational Science</i>. Elsevier,
    2017. <a href="https://doi.org/10.1016/j.jocs.2016.06.007">https://doi.org/10.1016/j.jocs.2016.06.007</a>.
  ieee: E. P. Gajda-Zagorska, R. Schaefer, M. Smołka, D. Pardo, and J. Alvarez Aramberri,
    “A multi objective memetic inverse solver reinforced by local optimization methods,”
    <i>Journal of Computational Science</i>, vol. 18. Elsevier, pp. 85–94, 2017.
  ista: Gajda-Zagorska EP, Schaefer R, Smołka M, Pardo D, Alvarez Aramberri J. 2017.
    A multi objective memetic inverse solver reinforced by local optimization methods.
    Journal of Computational Science. 18, 85–94.
  mla: Gajda-Zagorska, Ewa P., et al. “A Multi Objective Memetic Inverse Solver Reinforced
    by Local Optimization Methods.” <i>Journal of Computational Science</i>, vol.
    18, Elsevier, 2017, pp. 85–94, doi:<a href="https://doi.org/10.1016/j.jocs.2016.06.007">10.1016/j.jocs.2016.06.007</a>.
  short: E.P. Gajda-Zagorska, R. Schaefer, M. Smołka, D. Pardo, J. Alvarez Aramberri,
    Journal of Computational Science 18 (2017) 85–94.
date_created: 2018-12-11T11:50:26Z
date_published: 2017-01-01T00:00:00Z
date_updated: 2025-07-10T11:50:11Z
day: '01'
ddc:
- '000'
department:
- _id: ChWo
doi: 10.1016/j.jocs.2016.06.007
external_id:
  isi:
  - '000393528700009'
file:
- access_level: open_access
  content_type: application/pdf
  creator: dernst
  date_created: 2019-01-18T08:43:16Z
  date_updated: 2019-01-18T08:43:16Z
  file_id: '5842'
  file_name: 2016_jocs_ewa.pdf
  file_size: 1083911
  relation: main_file
  success: 1
file_date_updated: 2019-01-18T08:43:16Z
has_accepted_license: '1'
intvolume: '        18'
isi: 1
language:
- iso: eng
month: '01'
oa: 1
oa_version: Submitted Version
page: 85 - 94
publication: Journal of Computational Science
publication_identifier:
  issn:
  - 1877-7503
publication_status: published
publisher: Elsevier
publist_id: '6206'
quality_controlled: '1'
scopus_import: '1'
status: public
title: A multi objective memetic inverse solver reinforced by local optimization methods
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 18
year: '2017'
...
---
_id: '11561'
abstract:
- lang: eng
  text: We present a sample of ∼1000 emission-line galaxies at z = 0.4–4.7 from the
    ∼0.7deg2 High-z Emission-Line Survey in the Boötes field identified with a suite
    of six narrow-band filters at ≈0.4–2.1 μm. These galaxies have been selected on
    their Ly α (73), [O II] (285), H β/[O III] (387) or H α (362) emission line, and
    have been classified with optical to near-infrared colours. A subsample of 98
    sources have reliable redshifts from multiple narrow-band (e.g. [O II]–H α) detections
    and/or spectroscopy. In this survey paper, we present the observations, selection
    and catalogues of emitters. We measure number densities of Ly α, [O II], H β/[O III]
    and H α and confirm strong luminosity evolution in star-forming galaxies from
    z ∼ 0.4 to ∼5, in agreement with previous results. To demonstrate the usefulness
    of dual-line emitters, we use the sample of dual [O II]–H α emitters to measure
    the observed [O II]/H α ratio at z = 1.47. The observed [O II]/H α ratio increases
    significantly from 0.40 ± 0.01 at z = 0.1 to 0.52 ± 0.05 at z = 1.47, which we
    attribute to either decreasing dust attenuation with redshift, or due to a bias
    in the (typically) fibre measurements in the local Universe that only measure
    the central kpc regions. At the bright end, we find that both the H α and Ly α
    number densities at z ≈ 2.2 deviate significantly from a Schechter form, following
    a power law. We show that this is driven entirely by an increasing X-ray/active
    galactic nucleus fraction with line luminosity, which reaches ≈100 per cent at
    line luminosities L ≳ 3 × 1044 erg s−1.
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Jorryt J
  full_name: Matthee, Jorryt J
  id: 7439a258-f3c0-11ec-9501-9df22fe06720
  last_name: Matthee
  orcid: 0000-0003-2871-127X
- first_name: David
  full_name: Sobral, David
  last_name: Sobral
- first_name: Philip
  full_name: Best, Philip
  last_name: Best
- first_name: Ian
  full_name: Smail, Ian
  last_name: Smail
- first_name: Fuyan
  full_name: Bian, Fuyan
  last_name: Bian
- first_name: Behnam
  full_name: Darvish, Behnam
  last_name: Darvish
- first_name: Huub
  full_name: Röttgering, Huub
  last_name: Röttgering
- first_name: Xiaohui
  full_name: Fan, Xiaohui
  last_name: Fan
citation:
  ama: 'Matthee JJ, Sobral D, Best P, et al. Boötes-HiZELS: An optical to near-infrared
    survey of emission-line galaxies at z = 0.4–4.7. <i>Monthly Notices of the Royal
    Astronomical Society</i>. 2017;471(1):629-649. doi:<a href="https://doi.org/10.1093/mnras/stx1569">10.1093/mnras/stx1569</a>'
  apa: 'Matthee, J. J., Sobral, D., Best, P., Smail, I., Bian, F., Darvish, B., …
    Fan, X. (2017). Boötes-HiZELS: An optical to near-infrared survey of emission-line
    galaxies at z = 0.4–4.7. <i>Monthly Notices of the Royal Astronomical Society</i>.
    Oxford University Press. <a href="https://doi.org/10.1093/mnras/stx1569">https://doi.org/10.1093/mnras/stx1569</a>'
  chicago: 'Matthee, Jorryt J, David Sobral, Philip Best, Ian Smail, Fuyan Bian, Behnam
    Darvish, Huub Röttgering, and Xiaohui Fan. “Boötes-HiZELS: An Optical to near-Infrared
    Survey of Emission-Line Galaxies at z = 0.4–4.7.” <i>Monthly Notices of the Royal
    Astronomical Society</i>. Oxford University Press, 2017. <a href="https://doi.org/10.1093/mnras/stx1569">https://doi.org/10.1093/mnras/stx1569</a>.'
  ieee: 'J. J. Matthee <i>et al.</i>, “Boötes-HiZELS: An optical to near-infrared
    survey of emission-line galaxies at z = 0.4–4.7,” <i>Monthly Notices of the Royal
    Astronomical Society</i>, vol. 471, no. 1. Oxford University Press, pp. 629–649,
    2017.'
  ista: 'Matthee JJ, Sobral D, Best P, Smail I, Bian F, Darvish B, Röttgering H, Fan
    X. 2017. Boötes-HiZELS: An optical to near-infrared survey of emission-line galaxies
    at z = 0.4–4.7. Monthly Notices of the Royal Astronomical Society. 471(1), 629–649.'
  mla: 'Matthee, Jorryt J., et al. “Boötes-HiZELS: An Optical to near-Infrared Survey
    of Emission-Line Galaxies at z = 0.4–4.7.” <i>Monthly Notices of the Royal Astronomical
    Society</i>, vol. 471, no. 1, Oxford University Press, 2017, pp. 629–49, doi:<a
    href="https://doi.org/10.1093/mnras/stx1569">10.1093/mnras/stx1569</a>.'
  short: J.J. Matthee, D. Sobral, P. Best, I. Smail, F. Bian, B. Darvish, H. Röttgering,
    X. Fan, Monthly Notices of the Royal Astronomical Society 471 (2017) 629–649.
date_created: 2022-07-12T11:01:35Z
date_published: 2017-10-01T00:00:00Z
date_updated: 2024-10-14T11:34:07Z
day: '01'
doi: 10.1093/mnras/stx1569
extern: '1'
external_id:
  arxiv:
  - '1702.04721'
intvolume: '       471'
issue: '1'
keyword:
- Space and Planetary Science
- Astronomy and Astrophysics galaxies
- active
- galaxies
- evolution
- galaxies
- high-redshift
- galaxies
- luminosity function
- mass function
- 'galaxies: star formation'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://arxiv.org/abs/1702.04721
month: '10'
oa: 1
oa_version: Preprint
page: 629-649
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: 'Boötes-HiZELS: An optical to near-infrared survey of emission-line galaxies
  at z = 0.4–4.7'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 471
year: '2017'
...
---
_id: '11562'
abstract:
- lang: eng
  text: We present the CAlibrating LYMan-α with Hα (CALYMHA) pilot survey and new
    results on Lyman α (Lyα) selected galaxies at z ∼ 2. We use a custom-built Lyα
    narrow-band filter at the Isaac Newton Telescope, designed to provide a matched
    volume coverage to the z = 2.23 Hα HiZELS survey. Here, we present the first results
    for the COSMOS and UDS fields. Our survey currently reaches a 3σ line flux limit
    of ∼4 × 10−17 erg s−1 cm−2, and a Lyα luminosity limit of ∼1042.3 erg s−1. We
    find 188 Lyα emitters over 7.3 × 105 Mpc3, but also find significant numbers of
    other line-emitting sources corresponding to He II, C III] and C IV emission lines.
    These sources are important contaminants, and we carefully remove them, unlike
    most previous studies. We find that the Lyα luminosity function at z = 2.23 is
    very well described by a Schechter function up to LLy α ≈ 1043 erg s−1 with L∗=1042.59+0.16−0.08
    erg s−1, ϕ∗=10−3.09+0.14−0.34 Mpc−3 and α = −1.75 ± 0.25. Above LLy α ≈ 1043 erg
    s−1, the Lyα luminosity function becomes power-law like, driven by X-ray AGN.
    We find that Lyα-selected emitters have a high escape fraction of 37 ± 7 per cent,
    anticorrelated with Lyα luminosity and correlated with Lyα equivalent width. Lyα
    emitters have ubiquitous large (≈40 kpc) Lyα haloes, ∼2 times larger than their
    Hα extents. By directly comparing our Lyα and Hα luminosity functions, we find
    that the global/overall escape fraction of Lyα photons (within a 13 kpc radius)
    from the full population of star-forming galaxies is 5.1 ± 0.2 per cent at the
    peak of the star formation history. An extra 3.3 ± 0.3 per cent of Lyα photons
    likely still escape, but at larger radii.
acknowledgement: 'We thank the reviewer for his/her helpful comments and suggestions
  that have greatly improved this work. DS and JM acknowledge financial support from
  the Netherlands Organisation for Scientific research (NWO) through a Veni fellowship.
  DS also acknowledges funding from FCT through an FCT Investigator Starting Grant
  and Start-up Grant (IF/01154/2012/CP0189/CT0010). PNB is grateful for support from
  the UK STFC via grant ST/M001229/1. IRS acknowledges support from STFC (ST/L00075X/1),
  the ERC Advanced Investigator programme DUSTYGAL 321334 and a Royal Society/Wolfson
  merit award. We thank Matthew Hayes, Ryan Trainor, Kimihiko Nakajima and Anne Verhamme
  for many helpful discussions and Ana Sobral, Carolina Duarte and Miguel Domingos
  for taking part in observations with the NB392 filter. We also thank Sergio Santos
  for helpful comments. This research is based on observations obtained on the Isaac
  Newton Telescope (INT), programs: I13AN002, I14AN002, 088-INT7/14A, I14BN006, 118-INT13/14B
  & I15AN008. The authors acknowledge the award of time from programmes: I13AN002,
  I14AN002, 088-INT7/14A, I14BN006, 118-INT13/14B, I15AN008 on the INT. INT is operated
  on the island of La Palma by the Isaac Newton Group in the Spanish Observatorio
  del Roque de los Muchachos of the Instituto de Astrofisica de Canarias. Based on
  observations made with ESO Telescopes at the La Silla Paranal Observatory under
  programme ID 098.A 0819. We have benefited greatly from the publicly available programming
  language PYTHON, including the NUMPY, MATPLOTLIB, PYFITS, SCIPY and ASTROPY packages,
  the astronomical imaging tools SEXTRACTOR, SWARP (Bertin & Arnouts 1996; Bertin
  2010), SCAMP (Bertin 2006) and TOPCAT (Taylor 2005). Dedicated to the memory of
  M. L. Nicolau and M. C. Serrano.'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: David
  full_name: Sobral, David
  last_name: Sobral
- first_name: Jorryt J
  full_name: Matthee, Jorryt J
  id: 7439a258-f3c0-11ec-9501-9df22fe06720
  last_name: Matthee
  orcid: 0000-0003-2871-127X
- first_name: Philip
  full_name: Best, Philip
  last_name: Best
- first_name: Andra
  full_name: Stroe, Andra
  last_name: Stroe
- first_name: Huub
  full_name: Röttgering, Huub
  last_name: Röttgering
- first_name: Iván
  full_name: Oteo, Iván
  last_name: Oteo
- first_name: Ian
  full_name: Smail, Ian
  last_name: Smail
- first_name: Leah
  full_name: Morabito, Leah
  last_name: Morabito
- first_name: Ana
  full_name: Paulino-Afonso, Ana
  last_name: Paulino-Afonso
citation:
  ama: 'Sobral D, Matthee JJ, Best P, et al. The CALYMHA survey: Lyα luminosity function
    and global escape fraction of Lyα photons at z = 2.23. <i>Monthly Notices of the
    Royal Astronomical Society</i>. 2017;466(1):1242-1258. doi:<a href="https://doi.org/10.1093/mnras/stw3090">10.1093/mnras/stw3090</a>'
  apa: 'Sobral, D., Matthee, J. J., Best, P., Stroe, A., Röttgering, H., Oteo, I.,
    … Paulino-Afonso, A. (2017). The CALYMHA survey: Lyα luminosity function and global
    escape fraction of Lyα photons at z = 2.23. <i>Monthly Notices of the Royal Astronomical
    Society</i>. Oxford University Press. <a href="https://doi.org/10.1093/mnras/stw3090">https://doi.org/10.1093/mnras/stw3090</a>'
  chicago: 'Sobral, David, Jorryt J Matthee, Philip Best, Andra Stroe, Huub Röttgering,
    Iván Oteo, Ian Smail, Leah Morabito, and Ana Paulino-Afonso. “The CALYMHA Survey:
    Lyα Luminosity Function and Global Escape Fraction of Lyα Photons at z = 2.23.”
    <i>Monthly Notices of the Royal Astronomical Society</i>. Oxford University Press,
    2017. <a href="https://doi.org/10.1093/mnras/stw3090">https://doi.org/10.1093/mnras/stw3090</a>.'
  ieee: 'D. Sobral <i>et al.</i>, “The CALYMHA survey: Lyα luminosity function and
    global escape fraction of Lyα photons at z = 2.23,” <i>Monthly Notices of the
    Royal Astronomical Society</i>, vol. 466, no. 1. Oxford University Press, pp.
    1242–1258, 2017.'
  ista: 'Sobral D, Matthee JJ, Best P, Stroe A, Röttgering H, Oteo I, Smail I, Morabito
    L, Paulino-Afonso A. 2017. The CALYMHA survey: Lyα luminosity function and global
    escape fraction of Lyα photons at z = 2.23. Monthly Notices of the Royal Astronomical
    Society. 466(1), 1242–1258.'
  mla: 'Sobral, David, et al. “The CALYMHA Survey: Lyα Luminosity Function and Global
    Escape Fraction of Lyα Photons at z = 2.23.” <i>Monthly Notices of the Royal Astronomical
    Society</i>, vol. 466, no. 1, Oxford University Press, 2017, pp. 1242–58, doi:<a
    href="https://doi.org/10.1093/mnras/stw3090">10.1093/mnras/stw3090</a>.'
  short: D. Sobral, J.J. Matthee, P. Best, A. Stroe, H. Röttgering, I. Oteo, I. Smail,
    L. Morabito, A. Paulino-Afonso, Monthly Notices of the Royal Astronomical Society
    466 (2017) 1242–1258.
date_created: 2022-07-12T12:04:16Z
date_published: 2017-04-01T00:00:00Z
date_updated: 2024-10-14T11:35:37Z
day: '01'
doi: 10.1093/mnras/stw3090
extern: '1'
external_id:
  arxiv:
  - '1609.05897'
intvolume: '       466'
issue: '1'
keyword:
- Space and Planetary Science
- Astronomy and Astrophysics
- 'galaxies: evolution'
- 'galaxies: haloes'
- 'galaxies: high-redshift'
- 'galaxies: luminosity function'
- mass function
- 'galaxies: statistics'
- 'cosmology: observations'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://arxiv.org/abs/1609.05897
month: '04'
oa: 1
oa_version: Preprint
page: 1242-1258
publication: Monthly Notices of the Royal Astronomical Society
publication_identifier:
  eissn:
  - 1365-2966
  issn:
  - 0035-8711
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'The CALYMHA survey: Lyα luminosity function and global escape fraction of
  Lyα photons at z = 2.23'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 466
year: '2017'
...
---
_id: '11564'
abstract:
- lang: eng
  text: We study the production rate of ionizing photons of a sample of 588 Hα emitters
    (HAEs) and 160 Lyman-α emitters (LAEs) at z = 2.2 in the COSMOS field in order
    to assess the implied emissivity from galaxies, based on their ultraviolet (UV)
    luminosity. By exploring the rest-frame Lyman Continuum (LyC) with GALEX/NUV data,
    we find fesc < 2.8 (6.4) per cent through median (mean) stacking. By combining
    the Hα luminosity density with intergalactic medium emissivity measurements from
    absorption studies, we find a globally averaged 〈fesc〉 of 5.9+14.5−4.2 per cent
    at z = 2.2 if we assume HAEs are the only source of ionizing photons. We find
    similarly low values of the global 〈fesc〉 at z ≈ 3–5, also ruling out a high 〈fesc〉
    at z < 5. These low escape fractions allow us to measure ξion, the number of produced
    ionizing photons per unit UV luminosity, and investigate how this depends on galaxy
    properties. We find a typical ξion ≈ 1024.77 ± 0.04 Hz erg−1 for HAEs and ξion
    ≈ 1025.14 ± 0.09 Hz erg−1 for LAEs. LAEs and low-mass HAEs at z = 2.2 show similar
    values of ξion as typically assumed in the reionization era, while the typical
    HAE is three times less ionizing. Due to an increasing ξion with increasing EW(Hα),
    ξion likely increases with redshift. This evolution alone is fully in line with
    the observed evolution of ξion between z ≈ 2 and 5, indicating a typical value
    of ξion ≈ 1025.4 Hz erg−1 in the reionization era.
acknowledgement: "We thank the referee for the many helpful and constructive comments
  which have significantly improved this paper. JM acknowledges the support of a Huygens
  PhD fellowship from Leiden University. DS acknowledges financial support from the
  Netherlands Organization for Scientific research (NWO) through a Veni fellowship
  and from FCT through an FCT Investigator Starting Grant and Start-up Grant (IF/01154/2012/CP0189/CT0010).
  PNB is grateful for support from the UK STFC via grant ST/M001229/1. IO acknowledges
  support from the European Research Council in the form of the Advanced Investigator
  Programme, 321302, COSMICISM. The authors thank Andreas Faisst, Michael Rutkowski
  and Andreas Sandberg for answering questions related to this work and Daniel Schaerer
  and Mark Dijkstra for discussions. We acknowledge the work that has been done by
  both the COSMOS team in assembling such large, state-of-the-art multi-wavelength
  data set, as this has been crucial for the results presented in this paper. We have
  benefited greatly from the public available programming language PYTHON, including
  the NUMPY, MATPLOTLIB, PYFITS, SCIPY (Jones et al. 2001; Hunter 2007; Van Der Walt,
  Colbert & Varoquaux 2011) and ASTROPY (Astropy Collaboration et al. 2013) packages,
  the astronomical imaging tools SEXTRACTOR and SWARP (Bertin & Arnouts 1996;\r\nBertin
  2010) and the TOPCAT analysis program (Taylor 2013)."
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Jorryt J
  full_name: Matthee, Jorryt J
  id: 7439a258-f3c0-11ec-9501-9df22fe06720
  last_name: Matthee
  orcid: 0000-0003-2871-127X
- first_name: David
  full_name: Sobral, David
  last_name: Sobral
- first_name: Philip
  full_name: Best, Philip
  last_name: Best
- first_name: Ali Ahmad
  full_name: Khostovan, Ali Ahmad
  last_name: Khostovan
- first_name: Iván
  full_name: Oteo, Iván
  last_name: Oteo
- first_name: Rychard
  full_name: Bouwens, Rychard
  last_name: Bouwens
- first_name: Huub
  full_name: Röttgering, Huub
  last_name: Röttgering
citation:
  ama: Matthee JJ, Sobral D, Best P, et al. The production and escape of Lyman-Continuum
    radiation from star-forming galaxies at z ∼ 2 and their redshift evolution. <i>Monthly
    Notices of the Royal Astronomical Society</i>. 2017;465(3):3637-3655. doi:<a href="https://doi.org/10.1093/mnras/stw2973">10.1093/mnras/stw2973</a>
  apa: Matthee, J. J., Sobral, D., Best, P., Khostovan, A. A., Oteo, I., Bouwens,
    R., &#38; Röttgering, H. (2017). The production and escape of Lyman-Continuum
    radiation from star-forming galaxies at z ∼ 2 and their redshift evolution. <i>Monthly
    Notices of the Royal Astronomical Society</i>. Oxford University Press. <a href="https://doi.org/10.1093/mnras/stw2973">https://doi.org/10.1093/mnras/stw2973</a>
  chicago: Matthee, Jorryt J, David Sobral, Philip Best, Ali Ahmad Khostovan, Iván
    Oteo, Rychard Bouwens, and Huub Röttgering. “The Production and Escape of Lyman-Continuum
    Radiation from Star-Forming Galaxies at z ∼ 2 and Their Redshift Evolution.” <i>Monthly
    Notices of the Royal Astronomical Society</i>. Oxford University Press, 2017.
    <a href="https://doi.org/10.1093/mnras/stw2973">https://doi.org/10.1093/mnras/stw2973</a>.
  ieee: J. J. Matthee <i>et al.</i>, “The production and escape of Lyman-Continuum
    radiation from star-forming galaxies at z ∼ 2 and their redshift evolution,” <i>Monthly
    Notices of the Royal Astronomical Society</i>, vol. 465, no. 3. Oxford University
    Press, pp. 3637–3655, 2017.
  ista: Matthee JJ, Sobral D, Best P, Khostovan AA, Oteo I, Bouwens R, Röttgering
    H. 2017. The production and escape of Lyman-Continuum radiation from star-forming
    galaxies at z ∼ 2 and their redshift evolution. Monthly Notices of the Royal Astronomical
    Society. 465(3), 3637–3655.
  mla: Matthee, Jorryt J., et al. “The Production and Escape of Lyman-Continuum Radiation
    from Star-Forming Galaxies at z ∼ 2 and Their Redshift Evolution.” <i>Monthly
    Notices of the Royal Astronomical Society</i>, vol. 465, no. 3, Oxford University
    Press, 2017, pp. 3637–55, doi:<a href="https://doi.org/10.1093/mnras/stw2973">10.1093/mnras/stw2973</a>.
  short: J.J. Matthee, D. Sobral, P. Best, A.A. Khostovan, I. Oteo, R. Bouwens, H.
    Röttgering, Monthly Notices of the Royal Astronomical Society 465 (2017) 3637–3655.
date_created: 2022-07-12T12:12:14Z
date_published: 2017-03-01T00:00:00Z
date_updated: 2024-10-14T11:35:49Z
day: '01'
doi: 10.1093/mnras/stw2973
extern: '1'
external_id:
  arxiv:
  - '1605.08782'
intvolume: '       465'
issue: '3'
keyword:
- Space and Planetary Science
- Astronomy and Astrophysics
- 'galaxies: evolution'
- 'galaxies: high-redshift'
- 'cosmology: observations'
- dark ages
- reionization
- first stars
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://arxiv.org/abs/1605.08782
month: '03'
oa: 1
oa_version: Preprint
page: 3637-3655
publication: Monthly Notices of the Royal Astronomical Society
publication_identifier:
  eissn:
  - 1365-2966
  issn:
  - 0035-8711
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: The production and escape of Lyman-Continuum radiation from star-forming galaxies
  at z ∼ 2 and their redshift evolution
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 465
year: '2017'
...
---
_id: '11565'
abstract:
- lang: eng
  text: We use the hydrodynamical EAGLE simulation to study the magnitude and origin
    of the scatter in the stellar mass–halo mass relation for central galaxies. We
    separate cause and effect by correlating stellar masses in the baryonic simulation
    with halo properties in a matched dark matter only (DMO) simulation. The scatter
    in stellar mass increases with redshift and decreases with halo mass. At z = 0.1,
    it declines from 0.25 dex at M200, DMO ≈ 1011 M⊙ to 0.12 dex at M200, DMO ≈ 1013
    M⊙, but the trend is weak above 1012 M⊙. For M200, DMO < 1012.5 M⊙ up to 0.04
    dex of the scatter is due to scatter in the halo concentration. At fixed halo
    mass, a larger stellar mass corresponds to a more concentrated halo. This is likely
    because higher concentrations imply earlier formation times and hence more time
    for accretion and star formation, and/or because feedback is less efficient in
    haloes with higher binding energies. The maximum circular velocity, Vmax, DMO,
    and binding energy are therefore more fundamental properties than halo mass, meaning
    that they are more accurate predictors of stellar mass, and we provide fitting
    formulae for their relations with stellar mass. However, concentration alone cannot
    explain the total scatter in the Mstar−M200,DMO relation, and it does not explain
    the scatter in Mstar–Vmax, DMO. Halo spin, sphericity, triaxiality, substructure
    and environment are also not responsible for the remaining scatter, which thus
    could be due to more complex halo properties or non-linear/stochastic baryonic
    effects.
acknowledgement: We thank the anonymous referee for their comments. JM acknowledges
  the support of a Huygens PhD fellowship from Leiden University. JM thanks David
  Sobral for useful discussions and help with fitting routines and Jonas Chavez Montero
  and Ying Zu for providing data. We thank PRACE for the access to the Curie facility
  in France. We have used the DiRAC system which is a part of National E-Infrastructure
  at Durham University, operated by the Institute for Computational Cosmology on behalf
  of the STFC DiRAC HPC Facility (www.dirac.ac.uk); the equipment was funded by BIS
  National E-infrastructure capital grant ST/K00042X/1, STFC capital grant ST/H008519/1,
  STFC DiRAC Operations grant ST/K003267/1 and Durham University. The study was sponsored
  by the Dutch National Computing Facilities Foundation (NCF) for the use of supercomputer
  facilities, with financial support from the Netherlands Organisation for Scientific
  Research (NWO), through VICI grant 639.043.409, and the European Research Council
  under the European Union’s Seventh Framework Programme (FP7/2007-2013)/ERC Grant
  agreement 278594- GasAroundGalaxies, and from the Belgian Science Policy Office
  ([AP P7/08 CHARM]). We have benefited greatly from the public available programming
  language PYTHON, including the NUMPY, MATPLOTLIB, PYFITS, SCIPY, H5PY and RPY2 packages,
  and the TOPCAT analysis program (Taylor 2005).
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Jorryt J
  full_name: Matthee, Jorryt J
  id: 7439a258-f3c0-11ec-9501-9df22fe06720
  last_name: Matthee
  orcid: 0000-0003-2871-127X
- first_name: Joop
  full_name: Schaye, Joop
  last_name: Schaye
- first_name: Robert A.
  full_name: Crain, Robert A.
  last_name: Crain
- first_name: Matthieu
  full_name: Schaller, Matthieu
  last_name: Schaller
- first_name: Richard
  full_name: Bower, Richard
  last_name: Bower
- first_name: Tom
  full_name: Theuns, Tom
  last_name: Theuns
citation:
  ama: Matthee JJ, Schaye J, Crain RA, Schaller M, Bower R, Theuns T. The origin of
    scatter in the stellar mass–halo mass relation of central galaxies in the EAGLE
    simulation. <i>Monthly Notices of the Royal Astronomical Society</i>. 2017;465(2):2381-2396.
    doi:<a href="https://doi.org/10.1093/mnras/stw2884">10.1093/mnras/stw2884</a>
  apa: Matthee, J. J., Schaye, J., Crain, R. A., Schaller, M., Bower, R., &#38; Theuns,
    T. (2017). The origin of scatter in the stellar mass–halo mass relation of central
    galaxies in the EAGLE simulation. <i>Monthly Notices of the Royal Astronomical
    Society</i>. Oxford University Press. <a href="https://doi.org/10.1093/mnras/stw2884">https://doi.org/10.1093/mnras/stw2884</a>
  chicago: Matthee, Jorryt J, Joop Schaye, Robert A. Crain, Matthieu Schaller, Richard
    Bower, and Tom Theuns. “The Origin of Scatter in the Stellar Mass–Halo Mass Relation
    of Central Galaxies in the EAGLE Simulation.” <i>Monthly Notices of the Royal
    Astronomical Society</i>. Oxford University Press, 2017. <a href="https://doi.org/10.1093/mnras/stw2884">https://doi.org/10.1093/mnras/stw2884</a>.
  ieee: J. J. Matthee, J. Schaye, R. A. Crain, M. Schaller, R. Bower, and T. Theuns,
    “The origin of scatter in the stellar mass–halo mass relation of central galaxies
    in the EAGLE simulation,” <i>Monthly Notices of the Royal Astronomical Society</i>,
    vol. 465, no. 2. Oxford University Press, pp. 2381–2396, 2017.
  ista: Matthee JJ, Schaye J, Crain RA, Schaller M, Bower R, Theuns T. 2017. The origin
    of scatter in the stellar mass–halo mass relation of central galaxies in the EAGLE
    simulation. Monthly Notices of the Royal Astronomical Society. 465(2), 2381–2396.
  mla: Matthee, Jorryt J., et al. “The Origin of Scatter in the Stellar Mass–Halo
    Mass Relation of Central Galaxies in the EAGLE Simulation.” <i>Monthly Notices
    of the Royal Astronomical Society</i>, vol. 465, no. 2, Oxford University Press,
    2017, pp. 2381–96, doi:<a href="https://doi.org/10.1093/mnras/stw2884">10.1093/mnras/stw2884</a>.
  short: J.J. Matthee, J. Schaye, R.A. Crain, M. Schaller, R. Bower, T. Theuns, Monthly
    Notices of the Royal Astronomical Society 465 (2017) 2381–2396.
date_created: 2022-07-12T12:25:08Z
date_published: 2017-02-01T00:00:00Z
date_updated: 2024-10-14T11:36:05Z
day: '01'
doi: 10.1093/mnras/stw2884
extern: '1'
external_id:
  arxiv:
  - '1608.08218'
intvolume: '       465'
issue: '2'
keyword:
- Space and Planetary Science
- Astronomy and Astrophysics
- 'galaxies: evolution'
- 'galaxies: formation'
- 'galaxies: haloes'
- 'cosmology: theory'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://arxiv.org/abs/1608.08218
month: '02'
oa: 1
oa_version: Preprint
page: 2381-2396
publication: Monthly Notices of the Royal Astronomical Society
publication_identifier:
  eissn:
  - 1365-2966
  issn:
  - 0035-8711
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: The origin of scatter in the stellar mass–halo mass relation of central galaxies
  in the EAGLE simulation
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 465
year: '2017'
...
---
_id: '11566'
abstract:
- lang: eng
  text: While traditionally associated with active galactic nuclei (AGN), the properties
    of the C II] (λ = 2326 Å), C III] (λ, λ = 1907, 1909 Å) and C IV (λ, λ = 1549,
    1551 Å) emission lines are still uncertain as large, unbiased samples of sources
    are scarce. We present the first blind, statistical study of C II], C III] and
    C IV emitters at z ∼ 0.68, 1.05, 1.53, respectively, uniformly selected down to
    a flux limit of ∼4 × 10−17 erg s−1 cm−1 through a narrow-band survey covering
    an area of ∼1.4 deg2 over COSMOS and UDS. We detect 16 C II], 35 C III] and 17
    C IV emitters, whose nature we investigate using optical colours as well as Hubble
    Space Telescope (HST), X-ray, radio and far-infrared data. We find that z ∼ 0.7
    C II] emitters are consistent with a mixture of blue (UV slope β = −2.0 ± 0.4)
    star-forming (SF) galaxies with discy HST structure and AGN with Seyfert-like
    morphologies. Bright C II] emitters have individual X-ray detections as well as
    high average black hole accretion rates (BHARs) of ∼0.1 M⊙ yr−1. C III] emitters
    at z ∼ 1.05 trace a general population of SF galaxies, with β = −0.8 ± 1.1, a
    variety of optical morphologies, including isolated and interacting galaxies and
    low BHAR (<0.02 M⊙ yr−1). Our C IV emitters at z ∼ 1.5 are consistent with young,
    blue quasars (β ∼ −1.9) with point-like optical morphologies, bright X-ray counterparts
    and large BHAR (0.8  M⊙ yr−1). We also find some surprising C II], C III] and
    C IV emitters with rest-frame equivalent widths (EWs) that could be as large as
    50–100 Å. AGN or spatial offsets between the UV continuum stellar disc and the
    line-emitting regions may explain the large EW. These bright C II], C III] and
    C IV emitters are ideal candidates for spectroscopic follow-up to fully unveil
    their nature.
acknowledgement: 'We would like to thank the anonymous referee for her/his valuable
  input that helped improve the clarity and interpretation of our results. DS acknowledges
  financial support from the Netherlands Organisation for Scientific research (NWO),
  through a Veni fellowship. IO acknowledges support from the European Research Council
  in the form of the Advanced Investigator Programme, 321302, COSMICISM. CALYMHA data
  are based on observations made with the Isaac Newton Telescope (proposals 13AN002,
  I14AN002, 088-INT7/14A, I14BN006, 118-INT13/14B, I15AN008) operated on the island
  of La Palma by the Isaac Newton Group in the Spanish Observatorio del Roque de los
  Muchachos of the Instituto de Astrofísica de Canarias. Also based on data products
  from observations made with ESO Telescopes at the La Silla Paranal Observatory under
  ESO programme IDs 098.A-0819 and 179.A-2005. We are grateful to E. L. Wright and
  J. Schombert for their cosmology calculator. We would like to thank the authors
  of NUMPY (van der Walt et al. 2011), SCIPY (Jones et al. 2001), MATPLOTLIB (Hunter
  2007) and ASTROPY (Astropy Collaboration et al. 2013) for making these packages
  publicly available. This research has made use of the NASA/IPAC Extragalactic Database
  (NED), which is '
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Andra
  full_name: Stroe, Andra
  last_name: Stroe
- first_name: David
  full_name: Sobral, David
  last_name: Sobral
- first_name: Jorryt J
  full_name: Matthee, Jorryt J
  id: 7439a258-f3c0-11ec-9501-9df22fe06720
  last_name: Matthee
  orcid: 0000-0003-2871-127X
- first_name: João
  full_name: Calhau, João
  last_name: Calhau
- first_name: Ivan
  full_name: Oteo, Ivan
  last_name: Oteo
citation:
  ama: Stroe A, Sobral D, Matthee JJ, Calhau J, Oteo I. A 1.4 deg2 blind survey for
    C II], C III] and C IV at z ∼ 0.7–1.5 – I. Nature, morphologies and equivalent
    widths . <i>Monthly Notices of the Royal Astronomical Society</i>. 2017;471(3):2558-2574.
    doi:<a href="https://doi.org/10.1093/mnras/stx1712">10.1093/mnras/stx1712</a>
  apa: Stroe, A., Sobral, D., Matthee, J. J., Calhau, J., &#38; Oteo, I. (2017). A
    1.4 deg2 blind survey for C II], C III] and C IV at z ∼ 0.7–1.5 – I. Nature, morphologies
    and equivalent widths . <i>Monthly Notices of the Royal Astronomical Society</i>.
    Oxford University Press. <a href="https://doi.org/10.1093/mnras/stx1712">https://doi.org/10.1093/mnras/stx1712</a>
  chicago: Stroe, Andra, David Sobral, Jorryt J Matthee, João Calhau, and Ivan Oteo.
    “A 1.4 Deg2 Blind Survey for C II], C III] and C IV at z ∼ 0.7–1.5 – I. Nature,
    Morphologies and Equivalent Widths .” <i>Monthly Notices of the Royal Astronomical
    Society</i>. Oxford University Press, 2017. <a href="https://doi.org/10.1093/mnras/stx1712">https://doi.org/10.1093/mnras/stx1712</a>.
  ieee: A. Stroe, D. Sobral, J. J. Matthee, J. Calhau, and I. Oteo, “A 1.4 deg2 blind
    survey for C II], C III] and C IV at z ∼ 0.7–1.5 – I. Nature, morphologies and
    equivalent widths ,” <i>Monthly Notices of the Royal Astronomical Society</i>,
    vol. 471, no. 3. Oxford University Press, pp. 2558–2574, 2017.
  ista: Stroe A, Sobral D, Matthee JJ, Calhau J, Oteo I. 2017. A 1.4 deg2 blind survey
    for C II], C III] and C IV at z ∼ 0.7–1.5 – I. Nature, morphologies and equivalent
    widths . Monthly Notices of the Royal Astronomical Society. 471(3), 2558–2574.
  mla: Stroe, Andra, et al. “A 1.4 Deg2 Blind Survey for C II], C III] and C IV at
    z ∼ 0.7–1.5 – I. Nature, Morphologies and Equivalent Widths .” <i>Monthly Notices
    of the Royal Astronomical Society</i>, vol. 471, no. 3, Oxford University Press,
    2017, pp. 2558–74, doi:<a href="https://doi.org/10.1093/mnras/stx1712">10.1093/mnras/stx1712</a>.
  short: A. Stroe, D. Sobral, J.J. Matthee, J. Calhau, I. Oteo, Monthly Notices of
    the Royal Astronomical Society 471 (2017) 2558–2574.
date_created: 2022-07-12T12:33:16Z
date_published: 2017-11-01T00:00:00Z
date_updated: 2022-08-19T07:59:57Z
day: '01'
doi: 10.1093/mnras/stx1712
extern: '1'
external_id:
  arxiv:
  - '1703.10169'
intvolume: '       471'
issue: '3'
keyword:
- Space and Planetary Science
- Astronomy and Astrophysics
- 'galaxies: active'
- 'galaxies: high-redshift'
- 'quasars: emission lines'
- 'galaxies: star formation'
- 'cosmology: observations'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://arxiv.org/abs/1703.10169
month: '11'
oa: 1
oa_version: Preprint
page: 2558-2574
publication: Monthly Notices of the Royal Astronomical Society
publication_identifier:
  eissn:
  - 1365-2966
  issn:
  - 0035-8711
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'A 1.4 deg2 blind survey for C II], C III] and C IV at z ∼ 0.7–1.5 – I. Nature,
  morphologies and equivalent widths '
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 471
year: '2017'
...
---
_id: '11567'
abstract:
- lang: eng
  text: Recently, the C III] and C IV emission lines have been observed in galaxies
    in the early Universe (z > 5), providing new ways to measure their redshift and
    study their stellar populations and active galactic nuclei (AGN). We explore the
    first blind C II], C III] and C IV survey (z ∼ 0.68, 1.05, 1.53, respectively)
    presented in Stroe et al. (2017). We derive luminosity functions (LF) and study
    properties of C II], C III] and C IV line emitters through comparisons to the
    LFs of H α and Ly α emitters, UV selected star-forming (SF) galaxies and quasars
    at similar redshifts. The C II] LF at z ∼ 0.68 is equally well described by a
    Schechter or a power-law LF, characteristic of a mixture of SF and AGN activity.
    The C III] LF (z ∼ 1.05) is consistent to a scaled down version of the Schechter
    H α and Ly α LF at their redshift, indicating a SF origin. In stark contrast,
    the C IV LF at z ∼ 1.53 is well fit by a power-law, quasar-like LF. We find that
    the brightest UV sources (MUV < −22) will universally have C III] and C IV emission.
    However, on average, C III] and C IV are not as abundant as H α or Ly α emitters
    at the same redshift, with cosmic average ratios of ∼0.02–0.06 to H α and ∼0.01–0.1
    to intrinsic Ly α. We predict that the C III] and C IV lines can only be truly
    competitive in confirming high-redshift candidates when the hosts are intrinsically
    bright and the effective Ly α escape fraction is below 1 per cent. While C III]
    and C IV were proposed as good tracers of young, relatively low-metallicity galaxies
    typical of the early Universe, we find that, at least at z ∼ 1.5, C IV is exclusively
    hosted by AGN/quasars, especially at large line equivalent widths.
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Andra
  full_name: Stroe, Andra
  last_name: Stroe
- first_name: David
  full_name: Sobral, David
  last_name: Sobral
- first_name: Jorryt J
  full_name: Matthee, Jorryt J
  id: 7439a258-f3c0-11ec-9501-9df22fe06720
  last_name: Matthee
  orcid: 0000-0003-2871-127X
- first_name: João
  full_name: Calhau, João
  last_name: Calhau
- first_name: Ivan
  full_name: Oteo, Ivan
  last_name: Oteo
citation:
  ama: Stroe A, Sobral D, Matthee JJ, Calhau J, Oteo I. A 1.4 deg2 blind survey for
    C II], C III] and C IV at z ∼ 0.7–1.5 – II. Luminosity functions and cosmic average
    line ratios. <i>Monthly Notices of the Royal Astronomical Society</i>. 2017;471(3):2575-2586.
    doi:<a href="https://doi.org/10.1093/mnras/stx1713">10.1093/mnras/stx1713</a>
  apa: Stroe, A., Sobral, D., Matthee, J. J., Calhau, J., &#38; Oteo, I. (2017). A
    1.4 deg2 blind survey for C II], C III] and C IV at z ∼ 0.7–1.5 – II. Luminosity
    functions and cosmic average line ratios. <i>Monthly Notices of the Royal Astronomical
    Society</i>. Oxford University Press. <a href="https://doi.org/10.1093/mnras/stx1713">https://doi.org/10.1093/mnras/stx1713</a>
  chicago: Stroe, Andra, David Sobral, Jorryt J Matthee, João Calhau, and Ivan Oteo.
    “A 1.4 Deg2 Blind Survey for C II], C III] and C IV at z ∼ 0.7–1.5 – II. Luminosity
    Functions and Cosmic Average Line Ratios.” <i>Monthly Notices of the Royal Astronomical
    Society</i>. Oxford University Press, 2017. <a href="https://doi.org/10.1093/mnras/stx1713">https://doi.org/10.1093/mnras/stx1713</a>.
  ieee: A. Stroe, D. Sobral, J. J. Matthee, J. Calhau, and I. Oteo, “A 1.4 deg2 blind
    survey for C II], C III] and C IV at z ∼ 0.7–1.5 – II. Luminosity functions and
    cosmic average line ratios,” <i>Monthly Notices of the Royal Astronomical Society</i>,
    vol. 471, no. 3. Oxford University Press, pp. 2575–2586, 2017.
  ista: Stroe A, Sobral D, Matthee JJ, Calhau J, Oteo I. 2017. A 1.4 deg2 blind survey
    for C II], C III] and C IV at z ∼ 0.7–1.5 – II. Luminosity functions and cosmic
    average line ratios. Monthly Notices of the Royal Astronomical Society. 471(3),
    2575–2586.
  mla: Stroe, Andra, et al. “A 1.4 Deg2 Blind Survey for C II], C III] and C IV at
    z ∼ 0.7–1.5 – II. Luminosity Functions and Cosmic Average Line Ratios.” <i>Monthly
    Notices of the Royal Astronomical Society</i>, vol. 471, no. 3, Oxford University
    Press, 2017, pp. 2575–86, doi:<a href="https://doi.org/10.1093/mnras/stx1713">10.1093/mnras/stx1713</a>.
  short: A. Stroe, D. Sobral, J.J. Matthee, J. Calhau, I. Oteo, Monthly Notices of
    the Royal Astronomical Society 471 (2017) 2575–2586.
date_created: 2022-07-12T12:54:57Z
date_published: 2017-11-01T00:00:00Z
date_updated: 2022-08-19T08:02:04Z
day: '01'
doi: 10.1093/mnras/stx1713
extern: '1'
external_id:
  arxiv:
  - '1703.10169'
intvolume: '       471'
issue: '3'
keyword:
- Space and Planetary Science
- Astronomy and Astrophysics
- 'galaxies: active'
- 'galaxies: high redshift'
- 'galaxies: luminosity function'
- mass function
- 'quasars: emission lines'
- star formation
- 'cosmology: observations'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://arxiv.org/abs/1703.10169
month: '11'
oa: 1
oa_version: Preprint
page: 2575-2586
publication: Monthly Notices of the Royal Astronomical Society
publication_identifier:
  eissn:
  - 1365-2966
  issn:
  - 0035-8711
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: A 1.4 deg2 blind survey for C II], C III] and C IV at z ∼ 0.7–1.5 – II. Luminosity
  functions and cosmic average line ratios
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 471
year: '2017'
...
---
_id: '11572'
abstract:
- lang: eng
  text: We present spectroscopic follow-up of candidate luminous Ly α emitters (LAEs)
    at z = 5.7–6.6 in the SA22 field with VLT/X-SHOOTER. We confirm two new luminous
    LAEs at z = 5.676 (SR6) and z = 6.532 (VR7), and also present HST follow-up of
    both sources. These sources have luminosities LLy α ≈ 3 × 1043 erg s−1, very high
    rest-frame equivalent widths of EW0 ≳ 200 Å and narrow Ly α lines (200–340 km s−1).
    VR7 is the most UV-luminous LAE at z > 6.5, with M1500 = −22.5, even brighter
    in the UV than CR7. Besides Ly α, we do not detect any other rest-frame UV lines
    in the spectra of SR6 and VR7, and argue that rest-frame UV lines are easier to
    observe in bright galaxies with low Ly α equivalent widths. We confirm that Ly α
    line widths increase with Ly α luminosity at z = 5.7, while there are indications
    that Ly α lines of faint LAEs become broader at z = 6.6, potentially due to reionization.
    We find a large spread of up to 3 dex in UV luminosity for >L⋆ LAEs, but find
    that the Ly α luminosity of the brightest LAEs is strongly related to UV luminosity
    at z = 6.6. Under basic assumptions, we find that several LAEs at z ≈ 6–7 have
    Ly α escape fractions ≳ 100  per cent, indicating bursty star formation histories,
    alternative Ly α production mechanisms, or dust attenuating Ly α emission differently
    than UV emission. Finally, we present a method to compute ξion, the production
    efficiency of ionizing photons, and find that LAEs at z ≈ 6–7 have high values
    of log10(ξion/Hz erg−1) ≈ 25.51 ± 0.09 that may alleviate the need for high Lyman-Continuum
    escape fractions required for reionization.
acknowledgement: 'We thank the referee for a constructive report that has improved
  the quality and clarity of this work. The authors thank Grecco Oyarzún for discussions.
  JM acknowledges the support of a Huygens PhD fellowship from Leiden University.
  DS acknowledges financial support from the Netherlands Organisation for Scientific
  research (NWO) through a Veni fellowship and from Lancaster University through an
  Early Career Internal Grant A100679. BD acknowledges financial support from NASA
  through the Astrophysics Data Analysis Program (ADAP), grant number NNX12AE20G.
  We thank Kasper Schmidt for providing measurements. Based on observations with the
  W.M. Keck Observatory through programme C267D. The W.M. Keck Observatory is operated
  as a scientific partnership amongst the California Institute of Technology, the
  University of California and the National Aeronautics and Space Administration.
  Based on observations made with ESO Telescopes at the La Silla Paranal Observatory
  under programme IDs 097.A-0943, 294.A 5018 and 098.A-0819 and on data products produced
  by TERAPIX and the Cambridge Astronomy Survey Unit on behalf of the UltraVISTA consortium.
  The authors acknowledge the award of observing time (W16AN004) and of service time
  (SW2014b20) on the William Herschel Telescope (WHT). WHT and its service programme
  are operated on the island of La Palma by the Isaac Newton Group in the Spanish
  Observatorio del Roque de los Muchachos of the Instituto de Astrofisica de Canarias.
  Based on observations made with the NASA/ESA HST, obtained (from the Data Archive)
  at the Space Telescope Science Institute, which is operated by the Association of
  Universities for Research in Astronomy, Inc., under NASA contract NAS 5-26555. These
  observations are associated with programme #14699. We are grateful for the excellent
  data sets from the COSMOS, UltraVISTA, SXDS, UDS and CFHTLS survey teams; without
  these legacy surveys, this research would have been impossible. We have benefited
  from the public available programming language PYTHON, including the NUMPY, MATPLOTLIB,
  PYFITS, SCIPY and ASTROPY packages, the astronomical imaging tools SEXTRACTOR, SWARP
  and SCAMP and the TOPCAT analysis tool (Taylor 2013).'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Jorryt J
  full_name: Matthee, Jorryt J
  id: 7439a258-f3c0-11ec-9501-9df22fe06720
  last_name: Matthee
  orcid: 0000-0003-2871-127X
- first_name: David
  full_name: Sobral, David
  last_name: Sobral
- first_name: Behnam
  full_name: Darvish, Behnam
  last_name: Darvish
- first_name: Sérgio
  full_name: Santos, Sérgio
  last_name: Santos
- first_name: Bahram
  full_name: Mobasher, Bahram
  last_name: Mobasher
- first_name: Ana
  full_name: Paulino-Afonso, Ana
  last_name: Paulino-Afonso
- first_name: Huub
  full_name: Röttgering, Huub
  last_name: Röttgering
- first_name: Lara
  full_name: Alegre, Lara
  last_name: Alegre
citation:
  ama: Matthee JJ, Sobral D, Darvish B, et al. Spectroscopic properties of luminous
    Ly α emitters at z ≈ 6–7 and comparison to the Lyman-break population. <i>Monthly
    Notices of the Royal Astronomical Society</i>. 2017;472(1):772-787. doi:<a href="https://doi.org/10.1093/mnras/stx2061">10.1093/mnras/stx2061</a>
  apa: Matthee, J. J., Sobral, D., Darvish, B., Santos, S., Mobasher, B., Paulino-Afonso,
    A., … Alegre, L. (2017). Spectroscopic properties of luminous Ly α emitters at
    z ≈ 6–7 and comparison to the Lyman-break population. <i>Monthly Notices of the
    Royal Astronomical Society</i>. Oxford University Press. <a href="https://doi.org/10.1093/mnras/stx2061">https://doi.org/10.1093/mnras/stx2061</a>
  chicago: Matthee, Jorryt J, David Sobral, Behnam Darvish, Sérgio Santos, Bahram
    Mobasher, Ana Paulino-Afonso, Huub Röttgering, and Lara Alegre. “Spectroscopic
    Properties of Luminous Ly α Emitters at z ≈ 6–7 and Comparison to the Lyman-Break
    Population.” <i>Monthly Notices of the Royal Astronomical Society</i>. Oxford
    University Press, 2017. <a href="https://doi.org/10.1093/mnras/stx2061">https://doi.org/10.1093/mnras/stx2061</a>.
  ieee: J. J. Matthee <i>et al.</i>, “Spectroscopic properties of luminous Ly α emitters
    at z ≈ 6–7 and comparison to the Lyman-break population,” <i>Monthly Notices of
    the Royal Astronomical Society</i>, vol. 472, no. 1. Oxford University Press,
    pp. 772–787, 2017.
  ista: Matthee JJ, Sobral D, Darvish B, Santos S, Mobasher B, Paulino-Afonso A, Röttgering
    H, Alegre L. 2017. Spectroscopic properties of luminous Ly α emitters at z ≈ 6–7
    and comparison to the Lyman-break population. Monthly Notices of the Royal Astronomical
    Society. 472(1), 772–787.
  mla: Matthee, Jorryt J., et al. “Spectroscopic Properties of Luminous Ly α Emitters
    at z ≈ 6–7 and Comparison to the Lyman-Break Population.” <i>Monthly Notices of
    the Royal Astronomical Society</i>, vol. 472, no. 1, Oxford University Press,
    2017, pp. 772–87, doi:<a href="https://doi.org/10.1093/mnras/stx2061">10.1093/mnras/stx2061</a>.
  short: J.J. Matthee, D. Sobral, B. Darvish, S. Santos, B. Mobasher, A. Paulino-Afonso,
    H. Röttgering, L. Alegre, Monthly Notices of the Royal Astronomical Society 472
    (2017) 772–787.
date_created: 2022-07-13T09:47:39Z
date_published: 2017-11-01T00:00:00Z
date_updated: 2024-10-14T11:36:26Z
day: '01'
doi: 10.1093/mnras/stx2061
extern: '1'
external_id:
  arxiv:
  - '1706.06591'
intvolume: '       472'
issue: '1'
keyword:
- Space and Planetary Science
- Astronomy and Astrophysics
- 'galaxies: evolution – galaxies: high-redshift'
- dark ages
- reionization
- first stars
- 'cosmology: observations'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://arxiv.org/abs/1706.06591
month: '11'
oa: 1
oa_version: Preprint
page: 772-787
publication: Monthly Notices of the Royal Astronomical Society
publication_identifier:
  eissn:
  - 1365-2966
  issn:
  - 0035-8711
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: Spectroscopic properties of luminous Ly α emitters at z ≈ 6–7 and comparison
  to the Lyman-break population
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 472
year: '2017'
...
---
_id: '11573'
abstract:
- lang: eng
  text: We present dynamical measurements from the KMOS (K-band multi-object spectrograph)
    Deep Survey (KDS), which comprises 77 typical star-forming galaxies at z ≃ 3.5
    in the mass range 9.0 < log (M⋆/M⊙) < 10.5. These measurements constrain the internal
    dynamics, the intrinsic velocity dispersions (σint) and rotation velocities (VC)
    of galaxies in the high-redshift Universe. The mean velocity dispersion of the
    galaxies in our sample is σint=70.8+3.3−3.1kms−1⁠, revealing that the increasing
    average σint with increasing redshift, reported for z ≲ 2, continues out to z
    ≃ 3.5. Only 36 ± 8 per cent of our galaxies are rotation-dominated (VC/σint >
    1), with the sample average VC/σint value much smaller than at lower redshift.
    After carefully selecting comparable star-forming samples at multiple epochs,
    we find that the rotation-dominated fraction evolves with redshift with a z−0.2
    dependence. The rotation-dominated KDS galaxies show no clear offset from the
    local rotation velocity–stellar mass (i.e. VC–M⋆) relation, although a smaller
    fraction of the galaxies are on the relation due to the increase in the dispersion-dominated
    fraction. These observations are consistent with a simple equilibrium model picture,
    in which random motions are boosted in high-redshift galaxies by a combination
    of the increasing gas fractions, accretion efficiency, specific star formation
    rate and stellar feedback and which may provide significant pressure support against
    gravity on the galactic disc scale.
acknowledgement: 'We wish to thank the anonymous referee for their comments, which
  have improved the quality and clarity of this work. OJT acknowledges the financial
  support of the Science and Technology Facilities Council through a studentship award.
  MC and OJT acknowledge the KMOS team and all the personnel of the European Southern
  Observatory Very Large Telescope for outstanding support during the KMOS GTO observations.
  CMH, AMS and RMS acknowledge the Science and Technology Facilities Council through
  grant code ST/L00075X/1. RJM acknowledges the support of the European Research Council
  via the award of a Consolidator Grant (PI: McLure). JSD acknowledges the support
  of the European Research Council via the award of an Advanced Grant (PI J. Dunlop),
  and the contribution of the EC FP7 SPACE project ASTRODEEP (Ref.No: 312725). AMS
  acknowledges the Leverhulme Foundation. JM acknowledges the support of a Huygens
  PhD fellowship from Leiden University. DS acknowledges financial support from the
  Netherlands Organization for Scientific research (NWO) through a Veni fellowship
  and from FCT through an FCT Investigator Starting Grant and Start-up Grant (IF/01154/2012/CP0189/CT0010).
  This work is based on observations taken by the CANDELS Multi-Cycle Treasury Program
  with the NASA/ESA HST, which is operated by the Association of Universities for
  Research in Astronomy, Inc., under NASA contract NAS5-26555. This work is based
  on observations taken by the 3D HST Treasury Program (GO 12177 and 12328) with the
  NASA/ESA HST, which is operated by the Association of Universities for Research
  in Astronomy, Inc., under NASA contract NAS5-26555. Based on data obtained with
  the European Southern Observatory Very Large Telescope, Paranal, Chile, under Large
  Program 185.A-0791, and made available by the VUDS team at the CESAM data centre,
  Laboratoire d’Astrophysique de Marseille, France. Based on observations obtained
  at the Very Large Telescope of the European Southern Observatory. Programme IDs:
  092.A 0399(A), 093.A-0122(A,B), 094.A-0214(A,B),095.A0680(A,B),096.A-0315(A,B,C).'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: O. J.
  full_name: Turner, O. J.
  last_name: Turner
- first_name: M.
  full_name: Cirasuolo, M.
  last_name: Cirasuolo
- first_name: C. M.
  full_name: Harrison, C. M.
  last_name: Harrison
- first_name: R. J.
  full_name: McLure, R. J.
  last_name: McLure
- first_name: J. S.
  full_name: Dunlop, J. S.
  last_name: Dunlop
- first_name: A. M.
  full_name: Swinbank, A. M.
  last_name: Swinbank
- first_name: H. L.
  full_name: Johnson, H. L.
  last_name: Johnson
- first_name: D.
  full_name: Sobral, D.
  last_name: Sobral
- first_name: Jorryt J
  full_name: Matthee, Jorryt J
  id: 7439a258-f3c0-11ec-9501-9df22fe06720
  last_name: Matthee
  orcid: 0000-0003-2871-127X
- first_name: R. M.
  full_name: Sharples, R. M.
  last_name: Sharples
citation:
  ama: Turner OJ, Cirasuolo M, Harrison CM, et al. The KMOS Deep Survey (KDS) – I.
    Dynamical measurements of typical star-forming galaxies at z ≃ 3.5. <i>Monthly
    Notices of the Royal Astronomical Society</i>. 2017;471(2):1280-1320. doi:<a href="https://doi.org/10.1093/mnras/stx1366">10.1093/mnras/stx1366</a>
  apa: Turner, O. J., Cirasuolo, M., Harrison, C. M., McLure, R. J., Dunlop, J. S.,
    Swinbank, A. M., … Sharples, R. M. (2017). The KMOS Deep Survey (KDS) – I. Dynamical
    measurements of typical star-forming galaxies at z ≃ 3.5. <i>Monthly Notices of
    the Royal Astronomical Society</i>. Oxford University Press. <a href="https://doi.org/10.1093/mnras/stx1366">https://doi.org/10.1093/mnras/stx1366</a>
  chicago: Turner, O. J., M. Cirasuolo, C. M. Harrison, R. J. McLure, J. S. Dunlop,
    A. M. Swinbank, H. L. Johnson, D. Sobral, Jorryt J Matthee, and R. M. Sharples.
    “The KMOS Deep Survey (KDS) – I. Dynamical Measurements of Typical Star-Forming
    Galaxies at z ≃ 3.5.” <i>Monthly Notices of the Royal Astronomical Society</i>.
    Oxford University Press, 2017. <a href="https://doi.org/10.1093/mnras/stx1366">https://doi.org/10.1093/mnras/stx1366</a>.
  ieee: O. J. Turner <i>et al.</i>, “The KMOS Deep Survey (KDS) – I. Dynamical measurements
    of typical star-forming galaxies at z ≃ 3.5,” <i>Monthly Notices of the Royal
    Astronomical Society</i>, vol. 471, no. 2. Oxford University Press, pp. 1280–1320,
    2017.
  ista: Turner OJ, Cirasuolo M, Harrison CM, McLure RJ, Dunlop JS, Swinbank AM, Johnson
    HL, Sobral D, Matthee JJ, Sharples RM. 2017. The KMOS Deep Survey (KDS) – I. Dynamical
    measurements of typical star-forming galaxies at z ≃ 3.5. Monthly Notices of the
    Royal Astronomical Society. 471(2), 1280–1320.
  mla: Turner, O. J., et al. “The KMOS Deep Survey (KDS) – I. Dynamical Measurements
    of Typical Star-Forming Galaxies at z ≃ 3.5.” <i>Monthly Notices of the Royal
    Astronomical Society</i>, vol. 471, no. 2, Oxford University Press, 2017, pp.
    1280–320, doi:<a href="https://doi.org/10.1093/mnras/stx1366">10.1093/mnras/stx1366</a>.
  short: O.J. Turner, M. Cirasuolo, C.M. Harrison, R.J. McLure, J.S. Dunlop, A.M.
    Swinbank, H.L. Johnson, D. Sobral, J.J. Matthee, R.M. Sharples, Monthly Notices
    of the Royal Astronomical Society 471 (2017) 1280–1320.
date_created: 2022-07-13T10:03:01Z
date_published: 2017-10-01T00:00:00Z
date_updated: 2022-08-19T08:07:31Z
day: '01'
doi: 10.1093/mnras/stx1366
extern: '1'
external_id:
  arxiv:
  - '1704.06263'
intvolume: '       471'
issue: '2'
keyword:
- Space and Planetary Science
- Astronomy and Astrophysics
- 'galaxies: evolution'
- 'galaxies: high-redshift'
- 'galaxies: kinematics and dynamics'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://arxiv.org/abs/1704.06263
month: '10'
oa: 1
oa_version: Preprint
page: 1280-1320
publication: Monthly Notices of the Royal Astronomical Society
publication_identifier:
  eissn:
  - 1365-2966
  issn:
  - 0035-8711
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: The KMOS Deep Survey (KDS) – I. Dynamical measurements of typical star-forming
  galaxies at z ≃ 3.5
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 471
year: '2017'
...
---
_id: '1159'
abstract:
- lang: eng
  text: Auxin steers numerous physiological processes in plants, making the tight
    control of its endogenous levels and spatiotemporal distribution a necessity.
    This regulation is achieved by different mechanisms, including auxin biosynthesis,
    metabolic conversions, degradation, and transport. Here, we introduce cis-cinnamic
    acid (c-CA) as a novel and unique addition to a small group of endogenous molecules
    affecting in planta auxin concentrations. c-CA is the photo-isomerization product
    of the phenylpropanoid pathway intermediate trans-CA (t-CA). When grown on c-CA-containing
    medium, an evolutionary diverse set of plant species were shown to exhibit phenotypes
    characteristic for high auxin levels, including inhibition of primary root growth,
    induction of root hairs, and promotion of adventitious and lateral rooting. By
    molecular docking and receptor binding assays, we showed that c-CA itself is neither
    an auxin nor an anti-auxin, and auxin profiling data revealed that c-CA does not
    significantly interfere with auxin biosynthesis. Single cell-based auxin accumulation
    assays showed that c-CA, and not t-CA, is a potent inhibitor of auxin efflux.
    Auxin signaling reporters detected changes in spatiotemporal distribution of the
    auxin response along the root of c-CA-treated plants, and long-distance auxin
    transport assays showed no inhibition of rootward auxin transport. Overall, these
    results suggest that the phenotypes of c-CA-treated plants are the consequence
    of a local change in auxin accumulation, induced by the inhibition of auxin efflux.
    This work reveals a novel mechanism how plants may regulate auxin levels and adds
    a novel, naturally occurring molecule to the chemical toolbox for the studies
    of auxin homeostasis.
article_processing_charge: No
article_type: original
author:
- first_name: Ward
  full_name: Steenackers, Ward
  last_name: Steenackers
- first_name: Petr
  full_name: Klíma, Petr
  last_name: Klíma
- first_name: Mussa
  full_name: Quareshy, Mussa
  last_name: Quareshy
- first_name: Igor
  full_name: Cesarino, Igor
  last_name: Cesarino
- first_name: Robert
  full_name: Kumpf, Robert
  last_name: Kumpf
- first_name: Sander
  full_name: Corneillie, Sander
  last_name: Corneillie
- first_name: Pedro
  full_name: Araújo, Pedro
  last_name: Araújo
- first_name: Tom
  full_name: Viaene, Tom
  last_name: Viaene
- first_name: Geert
  full_name: Goeminne, Geert
  last_name: Goeminne
- first_name: Moritz
  full_name: Nowack, Moritz
  last_name: Nowack
- first_name: Karin
  full_name: Ljung, Karin
  last_name: Ljung
- first_name: Jirí
  full_name: Friml, Jirí
  id: 4159519E-F248-11E8-B48F-1D18A9856A87
  last_name: Friml
  orcid: 0000-0002-8302-7596
- first_name: Joshua
  full_name: Blakeslee, Joshua
  last_name: Blakeslee
- first_name: Ondřej
  full_name: Novák, Ondřej
  last_name: Novák
- first_name: Eva
  full_name: Zažímalová, Eva
  last_name: Zažímalová
- first_name: Richard
  full_name: Napier, Richard
  last_name: Napier
- first_name: Wout
  full_name: Boerjan, Wout
  last_name: Boerjan
- first_name: Bartel
  full_name: Vanholme, Bartel
  last_name: Vanholme
citation:
  ama: Steenackers W, Klíma P, Quareshy M, et al. Cis-cinnamic acid is a novel natural
    auxin efflux inhibitor that promotes lateral root formation. <i>Plant Physiology</i>.
    2017;173(1):552-565. doi:<a href="https://doi.org/10.1104/pp.16.00943">10.1104/pp.16.00943</a>
  apa: Steenackers, W., Klíma, P., Quareshy, M., Cesarino, I., Kumpf, R., Corneillie,
    S., … Vanholme, B. (2017). Cis-cinnamic acid is a novel natural auxin efflux inhibitor
    that promotes lateral root formation. <i>Plant Physiology</i>. American Society
    of Plant Biologists. <a href="https://doi.org/10.1104/pp.16.00943">https://doi.org/10.1104/pp.16.00943</a>
  chicago: Steenackers, Ward, Petr Klíma, Mussa Quareshy, Igor Cesarino, Robert Kumpf,
    Sander Corneillie, Pedro Araújo, et al. “Cis-Cinnamic Acid Is a Novel Natural
    Auxin Efflux Inhibitor That Promotes Lateral Root Formation.” <i>Plant Physiology</i>.
    American Society of Plant Biologists, 2017. <a href="https://doi.org/10.1104/pp.16.00943">https://doi.org/10.1104/pp.16.00943</a>.
  ieee: W. Steenackers <i>et al.</i>, “Cis-cinnamic acid is a novel natural auxin
    efflux inhibitor that promotes lateral root formation,” <i>Plant Physiology</i>,
    vol. 173, no. 1. American Society of Plant Biologists, pp. 552–565, 2017.
  ista: Steenackers W, Klíma P, Quareshy M, Cesarino I, Kumpf R, Corneillie S, Araújo
    P, Viaene T, Goeminne G, Nowack M, Ljung K, Friml J, Blakeslee J, Novák O, Zažímalová
    E, Napier R, Boerjan W, Vanholme B. 2017. Cis-cinnamic acid is a novel natural
    auxin efflux inhibitor that promotes lateral root formation. Plant Physiology.
    173(1), 552–565.
  mla: Steenackers, Ward, et al. “Cis-Cinnamic Acid Is a Novel Natural Auxin Efflux
    Inhibitor That Promotes Lateral Root Formation.” <i>Plant Physiology</i>, vol.
    173, no. 1, American Society of Plant Biologists, 2017, pp. 552–65, doi:<a href="https://doi.org/10.1104/pp.16.00943">10.1104/pp.16.00943</a>.
  short: W. Steenackers, P. Klíma, M. Quareshy, I. Cesarino, R. Kumpf, S. Corneillie,
    P. Araújo, T. Viaene, G. Goeminne, M. Nowack, K. Ljung, J. Friml, J. Blakeslee,
    O. Novák, E. Zažímalová, R. Napier, W. Boerjan, B. Vanholme, Plant Physiology
    173 (2017) 552–565.
date_created: 2018-12-11T11:50:28Z
date_published: 2017-01-01T00:00:00Z
date_updated: 2025-04-15T07:48:02Z
day: '01'
ddc:
- '580'
department:
- _id: JiFr
doi: 10.1104/pp.16.00943
ec_funded: 1
external_id:
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  - '000394135800041'
  pmid:
  - '27837086'
file:
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  date_created: 2019-11-18T16:12:25Z
  date_updated: 2020-07-14T12:44:36Z
  file_id: '7040'
  file_name: 2016_PlantPhysi_Steenackers.pdf
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intvolume: '       173'
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issue: '1'
language:
- iso: eng
month: '01'
oa: 1
oa_version: Submitted Version
page: 552 - 565
pmid: 1
project:
- _id: 25716A02-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '282300'
  name: Polarity and subcellular dynamics in plants
publication: Plant Physiology
publication_identifier:
  issn:
  - 0032-0889
publication_status: published
publisher: American Society of Plant Biologists
publist_id: '6199'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Cis-cinnamic acid is a novel natural auxin efflux inhibitor that promotes lateral
  root formation
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 173
year: '2017'
...
---
_id: '1160'
abstract:
- lang: eng
  text: 'We investigate fundamental nonlinear dynamics of ferrofluidic Taylor-Couette
    flow - flow confined be-tween two concentric independently rotating cylinders
    - consider small aspect ratio by solving the ferro-hydrodynamical equations, carrying
    out systematic bifurcation analysis. Without magnetic field, we find steady flow
    patterns, previously observed with a simple fluid, such as those containing normal
    one- or two vortex cells, as well as anomalous one-cell and twin-cell flow states.
    However, when a symmetry-breaking transverse magnetic field is present, all flow
    states exhibit stimulated, finite two-fold mode. Various bifurcations between
    steady and unsteady states can occur, corresponding to the transitions between
    the two-cell and one-cell states. While unsteady, axially oscillating flow states
    can arise, we also detect the emergence of new unsteady flow states. In particular,
    we uncover two new states: one contains only the azimuthally oscillating solution
    in the configuration of the twin-cell flow state, and an-other a rotating flow
    state. Topologically, these flow states are a limit cycle and a quasiperiodic
    solution on a two-torus, respectively. Emergence of new flow states in addition
    to observed ones with classical fluid, indicates that richer but potentially more
    controllable dynamics in ferrofluidic flows, as such flow states depend on the
    external magnetic field.'
article_number: '40012'
article_processing_charge: No
author:
- first_name: Sebastian
  full_name: Altmeyer, Sebastian
  id: 2EE67FDC-F248-11E8-B48F-1D18A9856A87
  last_name: Altmeyer
  orcid: 0000-0001-5964-0203
- first_name: Younghae
  full_name: Do, Younghae
  last_name: Do
- first_name: Ying
  full_name: Lai, Ying
  last_name: Lai
citation:
  ama: Altmeyer S, Do Y, Lai Y. Dynamics of ferrofluidic flow in the Taylor-Couette
    system with a small aspect ratio. <i>Scientific Reports</i>. 2017;7. doi:<a href="https://doi.org/10.1038/srep40012">10.1038/srep40012</a>
  apa: Altmeyer, S., Do, Y., &#38; Lai, Y. (2017). Dynamics of ferrofluidic flow in
    the Taylor-Couette system with a small aspect ratio. <i>Scientific Reports</i>.
    Nature Publishing Group. <a href="https://doi.org/10.1038/srep40012">https://doi.org/10.1038/srep40012</a>
  chicago: Altmeyer, Sebastian, Younghae Do, and Ying Lai. “Dynamics of Ferrofluidic
    Flow in the Taylor-Couette System with a Small Aspect Ratio.” <i>Scientific Reports</i>.
    Nature Publishing Group, 2017. <a href="https://doi.org/10.1038/srep40012">https://doi.org/10.1038/srep40012</a>.
  ieee: S. Altmeyer, Y. Do, and Y. Lai, “Dynamics of ferrofluidic flow in the Taylor-Couette
    system with a small aspect ratio,” <i>Scientific Reports</i>, vol. 7. Nature Publishing
    Group, 2017.
  ista: Altmeyer S, Do Y, Lai Y. 2017. Dynamics of ferrofluidic flow in the Taylor-Couette
    system with a small aspect ratio. Scientific Reports. 7, 40012.
  mla: Altmeyer, Sebastian, et al. “Dynamics of Ferrofluidic Flow in the Taylor-Couette
    System with a Small Aspect Ratio.” <i>Scientific Reports</i>, vol. 7, 40012, Nature
    Publishing Group, 2017, doi:<a href="https://doi.org/10.1038/srep40012">10.1038/srep40012</a>.
  short: S. Altmeyer, Y. Do, Y. Lai, Scientific Reports 7 (2017).
date_created: 2018-12-11T11:50:28Z
date_published: 2017-01-06T00:00:00Z
date_updated: 2025-07-10T11:50:13Z
day: '06'
ddc:
- '532'
department:
- _id: BjHo
doi: 10.1038/srep40012
external_id:
  isi:
  - '000391269700001'
file:
- access_level: open_access
  checksum: 694aa70399444570825099c1a7ec91f2
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T10:10:16Z
  date_updated: 2020-07-14T12:44:36Z
  file_id: '4802'
  file_name: IST-2017-743-v1+1_srep40012.pdf
  file_size: 4546835
  relation: main_file
file_date_updated: 2020-07-14T12:44:36Z
has_accepted_license: '1'
intvolume: '         7'
isi: 1
language:
- iso: eng
month: '01'
oa: 1
oa_version: Published Version
publication: Scientific Reports
publication_identifier:
  issn:
  - 2045-2322
publication_status: published
publisher: Nature Publishing Group
publist_id: '6198'
pubrep_id: '743'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Dynamics of ferrofluidic flow in the Taylor-Couette system with a small aspect
  ratio
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: 7
year: '2017'
...
---
OA_place: publisher
OA_type: free access
_id: '1161'
abstract:
- lang: eng
  text: Coordinated changes of cell shape are often the result of the excitable, wave-like
    dynamics of the actin cytoskeleton. New work shows that, in migrating cells, protrusion
    waves arise from mechanochemical crosstalk between adhesion sites, membrane tension
    and the actin protrusive machinery.
article_processing_charge: No
article_type: letter_note
author:
- first_name: Jan
  full_name: Müller, Jan
  id: AD07FDB4-0F61-11EA-8158-C4CC64CEAA8D
  last_name: Müller
- first_name: Michael K
  full_name: Sixt, Michael K
  id: 41E9FBEA-F248-11E8-B48F-1D18A9856A87
  last_name: Sixt
  orcid: 0000-0002-6620-9179
citation:
  ama: 'Müller J, Sixt MK. Cell migration: Making the waves. <i>Current Biology</i>.
    2017;27(1):R24-R25. doi:<a href="https://doi.org/10.1016/j.cub.2016.11.035">10.1016/j.cub.2016.11.035</a>'
  apa: 'Müller, J., &#38; Sixt, M. K. (2017). Cell migration: Making the waves. <i>Current
    Biology</i>. Cell Press. <a href="https://doi.org/10.1016/j.cub.2016.11.035">https://doi.org/10.1016/j.cub.2016.11.035</a>'
  chicago: 'Müller, Jan, and Michael K Sixt. “Cell Migration: Making the Waves.” <i>Current
    Biology</i>. Cell Press, 2017. <a href="https://doi.org/10.1016/j.cub.2016.11.035">https://doi.org/10.1016/j.cub.2016.11.035</a>.'
  ieee: 'J. Müller and M. K. Sixt, “Cell migration: Making the waves,” <i>Current
    Biology</i>, vol. 27, no. 1. Cell Press, pp. R24–R25, 2017.'
  ista: 'Müller J, Sixt MK. 2017. Cell migration: Making the waves. Current Biology.
    27(1), R24–R25.'
  mla: 'Müller, Jan, and Michael K. Sixt. “Cell Migration: Making the Waves.” <i>Current
    Biology</i>, vol. 27, no. 1, Cell Press, 2017, pp. R24–25, doi:<a href="https://doi.org/10.1016/j.cub.2016.11.035">10.1016/j.cub.2016.11.035</a>.'
  short: J. Müller, M.K. Sixt, Current Biology 27 (2017) R24–R25.
date_created: 2018-12-11T11:50:29Z
date_published: 2017-01-09T00:00:00Z
date_updated: 2025-06-26T09:01:10Z
day: '09'
department:
- _id: MiSi
doi: 10.1016/j.cub.2016.11.035
external_id:
  isi:
  - '000391902500010'
intvolume: '        27'
isi: 1
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.1016/j.cub.2016.11.035
month: '01'
oa: 1
oa_version: Published Version
page: R24 - R25
publication: Current Biology
publication_identifier:
  issn:
  - '09609822'
publication_status: published
publisher: Cell Press
publist_id: '6197'
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Cell migration: Making the waves'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 27
year: '2017'
...