The star formation histories of Hickson compact group galaxies

Aims. We study the star formation fistory (SFH) of 210 galaxy members of 55 Hickson compact groups (HCG) and 309 galaxies from the Catalog of Isolated Galaxies (CIG). The SFH traces the variation of star formation over the lifetime of a galaxy, and consequently yields a snapshot picture of its forma...

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Detalhes bibliográficos
Autores: Plauchu-Frayn, I., Olmo, Ascensión del, Coziol, R., Torres-Papaqui, J. P.
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2012
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/423272
Acesso em linha:http://hdl.handle.net/10261/423272
Access Level:acceso abierto
Palavra-chave:Galaxies: evolution
Galaxies: groups: general
Galaxies: interactions
Galaxies: stellar content
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network_name_str España
repository_id_str
dc.title.none.fl_str_mv The star formation histories of Hickson compact group galaxies
title The star formation histories of Hickson compact group galaxies
spellingShingle The star formation histories of Hickson compact group galaxies
Plauchu-Frayn, I.
Galaxies: evolution
Galaxies: groups: general
Galaxies: interactions
Galaxies: stellar content
title_short The star formation histories of Hickson compact group galaxies
title_full The star formation histories of Hickson compact group galaxies
title_fullStr The star formation histories of Hickson compact group galaxies
title_full_unstemmed The star formation histories of Hickson compact group galaxies
title_sort The star formation histories of Hickson compact group galaxies
dc.creator.none.fl_str_mv Plauchu-Frayn, I.
Olmo, Ascensión del
Coziol, R.
Torres-Papaqui, J. P.
author Plauchu-Frayn, I.
author_facet Plauchu-Frayn, I.
Olmo, Ascensión del
Coziol, R.
Torres-Papaqui, J. P.
author_role author
author2 Olmo, Ascensión del
Coziol, R.
Torres-Papaqui, J. P.
author2_role author
author
author
dc.contributor.none.fl_str_mv Consejo Nacional de Ciencia y Tecnología (México)
Ministerio de Ciencia e Innovación (España)
Junta de Andalucía
Alfred P. Sloan Foundation
National Science Foundation (US)
NASA
Department of Energy (US)
Japanese Government
Max Planck Society
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Galaxies: evolution
Galaxies: groups: general
Galaxies: interactions
Galaxies: stellar content
topic Galaxies: evolution
Galaxies: groups: general
Galaxies: interactions
Galaxies: stellar content
description Aims. We study the star formation fistory (SFH) of 210 galaxy members of 55 Hickson compact groups (HCG) and 309 galaxies from the Catalog of Isolated Galaxies (CIG). The SFH traces the variation of star formation over the lifetime of a galaxy, and consequently yields a snapshot picture of its formation. Comparing the SFHs in these extremes in galaxy density allows us to determine the main effects of compact groups (CG) on the formation of galaxies.
publishDate 2012
dc.date.none.fl_str_mv 2012
2026
2026
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/423272
url http://hdl.handle.net/10261/423272
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/MICINN//AYA2010-15196.
info:eu-repo/grantAgreement/MICINN//AYA2010-22111
http://dx.doi.org/10.1051/0004-6361/201219916
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv EDP Sciences
publisher.none.fl_str_mv EDP Sciences
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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spelling The star formation histories of Hickson compact group galaxiesPlauchu-Frayn, I.Olmo, Ascensión delCoziol, R.Torres-Papaqui, J. P.Galaxies: evolutionGalaxies: groups: generalGalaxies: interactionsGalaxies: stellar contentAims. We study the star formation fistory (SFH) of 210 galaxy members of 55 Hickson compact groups (HCG) and 309 galaxies from the Catalog of Isolated Galaxies (CIG). The SFH traces the variation of star formation over the lifetime of a galaxy, and consequently yields a snapshot picture of its formation. Comparing the SFHs in these extremes in galaxy density allows us to determine the main effects of compact groups (CG) on the formation of galaxies.Methods. We fit our spectra using the spectral synthesis code STARLIGHT and obtained the stellar population contents and mean stellar ages of HCG and CIG galaxies in three different morphological classes: early-type galaxies (EtG), early-type spirals (EtS), and late-type spirals (LtS).Results. We find that EtG and EtS galaxies in HCG show higher contents of old and intermediate stellar populations as well as an important deficit of the young stellar population, which clearly implies an older average stellar age in early galaxies in HCG. For LtS galaxies we find similar mean values for the stellar content and age in the two samples. However, we note that LtS can be split into two subclasses, namely old and young LtS. In HCG we find a higher fraction of young LtS than in the CIG sample, in addition, most of these galaxies belong to groups in which most of the galaxies are also young and actively forming stars. The specific star formation rate (SSFR) of spiral galaxies in the two samples differ. The EtS in HCG show lower SSFR values, while LtS peak at higher values compared with their counterparts in isolation. We also measured the shorter star formation time scale (SFTS) in HCG galaxies, which indicates that they have a shorter star formation activity than CIG galaxies. We take these observations as evidence that galaxies in CG have evolved more rapidly than galaxies in isolation, regardless of their morphology. Our observations are consistent with the hierarchical galaxy formation model, which states that CGs are structures that formed recently from primordial small-mass density fluctuations. From the systematic difference in SFTS we deduce that the HCG have most probably formed ~ 3 Gyr in the past. The galaxies in the HCG are not in equilibrium state, but merging without gas (i.e., under dissipationless conditions), which may explain their relatively long lifetime. ©2012 ESO.We are grateful to M. A. Martínez for making available her sample of HCG spectra and to J. Perea, C. Husillos, and J. Islas-Islas for use- ful comments on this work. I. P.-F. acknowledges the postdoctoral fellowship grants 145727 and 170304 from CONACyT Mexico and partial support from the Spanish research project AYA2010-15196. A.d.O. is partially supported by the Spanish research project AYA2010-22111, Junta de Andalucía TIC114 and the Excellence project P08-TIC-3531. T.-P. acknowledges PROMEP for support grant 103.5-10-4684 and DAIPGto (0065/11). We thank the anonymous referee for the valuable and detailed comments that improved this manuscript. Finally, we acknowledge the use of the following databases and software. Funding for the Sloan Digital Sky Survey (SDSS) has been provided by the Alfred P. Sloan Foundation, the Participating Institutions, the National Aeronautics and Space Administration, the National Science Foundation, the US Department of Energy, the Japanese Monbukagakusho and the Max-Planck Society. The SDSS is managed by the Astrophysical Research Consortium for the partici- pating Institutions. The Participating Institutions are the University of Chicago, Fermilab, the Institute for Advanced Study, the Japan Participation Group, Los Alamos National Laboratory, the Max-Planck Institute for Astronomy (MPIA), New Mexico State University, University of Pittsburgh, University of Portsmouth, Princeton University, the United States Naval Observatory and the University of Washington (http://www.sdss.org). (http://www. sdss.org/). 2MASS (Two Micron All Sky Survey) is a joint project of the University of Massachusetts and the Infrared Processing and Analysis Center/California Institute of Technology, funded by the National Aeronautics and Space Administration and the National Science Foundation. Hyperleda is an information system for astronomy based on the richest catalogue of homoge- neous parameters of galaxies for the largest available sample (http://leda. univ-lyon1.fr). NED (NASA/IPAC Extragalactic Database) is operated by the Jet Propulsion Laboratory, California Institute of Technology, under con- tract with the National Aeronautics and Space Administration. GALEX (Galaxy Evolution Explorer) is a NASA Small Explorer, launched in April 2003 and de- veloped in cooperation with the Centre National d’Études Spatiales of France and the Korean Ministry of Science and Technology. R is a free software en- vironment for statistical computing and graphics (http://www.r-project. org/). TOPCAT is an interactive graphical tool for analysis and manipulation of tabular data (Taylor 2005) (http://www.star.bris.ac.uk/~mbt/topcat/).Peer reviewedEDP SciencesConsejo Nacional de Ciencia y Tecnología (México)Ministerio de Ciencia e Innovación (España)Junta de AndalucíaAlfred P. Sloan FoundationNational Science Foundation (US)NASADepartment of Energy (US)Japanese GovernmentMax Planck SocietyConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202620262012info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/423272reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/MICINN//AYA2010-15196.info:eu-repo/grantAgreement/MICINN//AYA2010-22111http://dx.doi.org/10.1051/0004-6361/201219916Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/4232722026-05-22T06:33:51Z
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