Star formation along the Hubble sequence Radial structure of the star formation of CALIFA galaxies

González Delgado, Rosa M. et. al.

Detalhes bibliográficos
Autores: González Delgado, Rosa M., Pérez Jiménez, Enrique, García-Benito, Rubén, López Fernández, R., Lacerda, E., Cortijo Ferrero, Clara, Márquez, Isabel, Masegosa, Josefa, Vílchez Medina, José Manuel
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2016
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/135207
Acesso em linha:http://hdl.handle.net/10261/135207
Access Level:acceso abierto
Palavra-chave:Galaxies: evolution
Galaxies: stellar content
Galaxies: star formation
Techniques: spectroscopic
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dc.title.none.fl_str_mv Star formation along the Hubble sequence Radial structure of the star formation of CALIFA galaxies
title Star formation along the Hubble sequence Radial structure of the star formation of CALIFA galaxies
spellingShingle Star formation along the Hubble sequence Radial structure of the star formation of CALIFA galaxies
González Delgado, Rosa M.
Galaxies: evolution
Galaxies: stellar content
Galaxies: star formation
Techniques: spectroscopic
title_short Star formation along the Hubble sequence Radial structure of the star formation of CALIFA galaxies
title_full Star formation along the Hubble sequence Radial structure of the star formation of CALIFA galaxies
title_fullStr Star formation along the Hubble sequence Radial structure of the star formation of CALIFA galaxies
title_full_unstemmed Star formation along the Hubble sequence Radial structure of the star formation of CALIFA galaxies
title_sort Star formation along the Hubble sequence Radial structure of the star formation of CALIFA galaxies
dc.creator.none.fl_str_mv González Delgado, Rosa M.
Pérez Jiménez, Enrique
García-Benito, Rubén
López Fernández, R.
Lacerda, E.
Cortijo Ferrero, Clara
Márquez, Isabel
Masegosa, Josefa
Vílchez Medina, José Manuel
author González Delgado, Rosa M.
author_facet González Delgado, Rosa M.
Pérez Jiménez, Enrique
García-Benito, Rubén
López Fernández, R.
Lacerda, E.
Cortijo Ferrero, Clara
Márquez, Isabel
Masegosa, Josefa
Vílchez Medina, José Manuel
author_role author
author2 Pérez Jiménez, Enrique
García-Benito, Rubén
López Fernández, R.
Lacerda, E.
Cortijo Ferrero, Clara
Márquez, Isabel
Masegosa, Josefa
Vílchez Medina, José Manuel
author2_role author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Ministerio de Economía y Competitividad (España)
Junta de Andalucía
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Galaxies: evolution
Galaxies: stellar content
Galaxies: star formation
Techniques: spectroscopic
topic Galaxies: evolution
Galaxies: stellar content
Galaxies: star formation
Techniques: spectroscopic
description González Delgado, Rosa M. et. al.
publishDate 2016
dc.date.none.fl_str_mv 2016
2016
2016
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/10261/135207
url http://hdl.handle.net/10261/135207
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
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info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/AYA2014-57490-P
info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/AYA2013-47742-C4-3-P
info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/AYA2013-42227-P
http://dx.doi.org/10.1051/0004-6361/201628174
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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
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spelling Star formation along the Hubble sequence Radial structure of the star formation of CALIFA galaxiesGonzález Delgado, Rosa M.Pérez Jiménez, EnriqueGarcía-Benito, RubénLópez Fernández, R.Lacerda, E.Cortijo Ferrero, ClaraMárquez, IsabelMasegosa, JosefaVílchez Medina, José ManuelGalaxies: evolutionGalaxies: stellar contentGalaxies: star formationTechniques: spectroscopicGonzález Delgado, Rosa M. et. al.The spatially resolved stellar population content of today's galaxies holds important information for understanding the different processes that contribute to the star formation and mass assembly histories of galaxies. The aim of this paper is to characterize the radial structure of the star formation rate (SFR) in galaxies in the nearby Universe as represented by a uniquely rich and diverse data set drawn from the CALIFA survey. The sample under study contains 416 galaxies observed with integral field spectroscopy, covering a wide range of Hubble types and stellar masses ranging from M* similar to 10(9) to 7 x 10(11) M-circle dot. Spectral synthesis techniques are applied to the datacubes to derive 2D maps and radial profiles of the intensity of the star formation rate in the recent past (Sigma(SFR)), as well as related properties, such as the local specific star formation rate (sSFR), defined as the ratio between Sigma(SFR) and the stellar mass surface density (mu*). To emphasize the behavior of these properties for galaxies that are on and off the main sequence of star formation (MSSF), we stack the individual radial profiles in seven bins of galaxy morphology ( E, S0, Sa, Sb, Sbc, Sc, and Sd), and several stellar masses. Our main results are: ( a) the intensity of the star formation rate shows declining profiles that exhibit very small differences between spirals with values at R = 1 half light radius (HLR) within a factor two of Sigma(SFR) similar to 20 M-circle dot Gyr(-1) pc(-2). The dispersion in the Sigma(SFR)(R) profiles is significantly smaller in late type spirals (Sbc, Sc, Sd). This confirms that the MSSF is a sequence of galaxies with nearly constant Sigma(SFR). (b) sSFR values scale with Hubble type and increase radially outward with a steeper slope in the inner 1 HLR. This behavior suggests that galaxies are quenched inside-out and that this process is faster in the central, bulge-dominated part than in the disks. (c) As a whole and at all radii, E and S0 are off the MSSF with SFR much smaller than spirals of the same mass. (d) Applying the volume corrections for the CALIFA sample, we obtain a density of star formation in the local Universe of rho SFR = (0.0105 +/- 0.0008) M-circle dot yr(-1) Mpc(-3), in agreement with independent estimates. Most of the star formation is occurring in the disks of spirals. (e) The volume-averaged birthrate parameter, which measures the current SFR with respect to its lifetime average, b' = 0.39 +/- 0.03, suggests that the present day Universe is forming stars a about one-third of its past average rate. E, S0, and the bulge of early type spirals (Sa, Sb) contribute little to the recent SFR of the Universe, which is dominated by the disks of Sbc, Sc, and Sd spirals. (f) There is a tight relation between Sigma(SFR) and mu*, defining a local MSSF relation with a logarithmic slope of 0.8, similar to the global MSSF relation between SFR and M*. This suggests that local processes are important in determining the star formation in disks, probably through a density dependence of the SFR law. The scatter in the local MSSF is driven by morphology-related off sets, with Sigma(SFR)/mu* (the local sSFR) increasing from early to late type galaxies, indicating that the shut down of the star formation is more related to global processes, such as the formation of a spheroidal component.Support from the Spanish Ministerio de Economia y Competitividad, through projects AYA2014-57490-P, AYA2010-15081, and Junta de Andalucia FQ1580, AYA2010-22111-C03-03, AYA2010-10904E, AYA2013-42227P, RyC-2011-09461, AYA2013-47742-C4-3-P, EU SELGIFS exchange program FP7-PEOPLE-2013-IRSES-612701, and CONACYT-125180 and DGAPA-IA100815. We also thank the Viabilidad, Diseno, Acceso y Mejora funding program, ICTS-2009-10, for funding the data acquisition of this project.Peer reviewedEDP SciencesMinisterio de Economía y Competitividad (España)Junta de AndalucíaConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]201620162016info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/135207reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/AYA2014-57490-Pinfo:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/AYA2013-47742-C4-3-Pinfo:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/AYA2013-42227-Phttp://dx.doi.org/10.1051/0004-6361/201628174Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1352072026-05-22T06:33:51Z
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