Stellar populations in local star-forming galaxies - II. Recent star formation properties and stellar masses

We present the integrated properties of the stellar populations in the Universidad Complutense de Madrid (UCM) Survey galaxies. Applying the techniques described in the first paper of this series, we derive ages, burst masses and metallicities of the newly formed stars in our sample galaxies. The po...

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Autores: Pérez González, Pablo Guillermo, Gil De Paz, Armando, Zamorano Calvo, Jaime, Gallego Maestro, Jesús, Alonso Herrero, A., Aragón Salamanca, A.
Tipo de recurso: artículo
Fecha de publicación:2003
País:España
Institución:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/51645
Acceso en línea:https://hdl.handle.net/20.500.14352/51645
Access Level:acceso abierto
Palabra clave:52
Emission-line galaxies
Band surface photometry
Disk dominated galaxies
Blue compact galaxies
Hubble deep field
UCM list-I
Formation history
Starburst galaxies
Optical photometry
Spiral galaxies
Astrofísica
Astronomía (Física)
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oai_identifier_str oai:docta.ucm.es:20.500.14352/51645
network_acronym_str ES
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repository_id_str
spelling Stellar populations in local star-forming galaxies - II. Recent star formation properties and stellar massesPérez González, Pablo GuillermoGil De Paz, ArmandoZamorano Calvo, JaimeGallego Maestro, JesúsAlonso Herrero, A.Aragón Salamanca, A.52Emission-line galaxiesBand surface photometryDisk dominated galaxiesBlue compact galaxiesHubble deep fieldUCM list-IFormation historyStarburst galaxiesOptical photometrySpiral galaxiesAstrofísicaAstronomía (Física)We present the integrated properties of the stellar populations in the Universidad Complutense de Madrid (UCM) Survey galaxies. Applying the techniques described in the first paper of this series, we derive ages, burst masses and metallicities of the newly formed stars in our sample galaxies. The population of young stars is responsible for the Halpha emission used to detect the objects in the UCM Survey. We also infer total stellar masses and star formation rates in a consistent way taking into account the evolutionary history of each galaxy. We find that an average UCM galaxy has a total stellar mass of ∼10^10 M_⨀, of which about 5 per cent was formed in an instantaneous burst that occurred about 5 Myr ago, and subsolar metallicity. Less than 10 per cent of the sample shows massive starbursts involving more than half of the total mass of the galaxy. Several correlations are found among the derived properties. The burst strength is correlated with the extinction and with the integrated optical colours for galaxies with low obscuration. The current star formation rate is correlated with the gas content. A stellar mass-metallicity relation is also found. Our analysis indicates that the UCM Survey galaxies span a broad range in properties between those of galaxies completely dominated by current/recent star formation and those of normal quiescent spirals. We also find evidence indicating that star formation in the local Universe is dominated by galaxies considerably less massive than L^*.WileyUniversidad Complutense de Madrid20032003-01-1120032003-01-11journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14352/51645reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/516452026-06-02T12:44:21Z
dc.title.none.fl_str_mv Stellar populations in local star-forming galaxies - II. Recent star formation properties and stellar masses
title Stellar populations in local star-forming galaxies - II. Recent star formation properties and stellar masses
spellingShingle Stellar populations in local star-forming galaxies - II. Recent star formation properties and stellar masses
Pérez González, Pablo Guillermo
52
Emission-line galaxies
Band surface photometry
Disk dominated galaxies
Blue compact galaxies
Hubble deep field
UCM list-I
Formation history
Starburst galaxies
Optical photometry
Spiral galaxies
Astrofísica
Astronomía (Física)
title_short Stellar populations in local star-forming galaxies - II. Recent star formation properties and stellar masses
title_full Stellar populations in local star-forming galaxies - II. Recent star formation properties and stellar masses
title_fullStr Stellar populations in local star-forming galaxies - II. Recent star formation properties and stellar masses
title_full_unstemmed Stellar populations in local star-forming galaxies - II. Recent star formation properties and stellar masses
title_sort Stellar populations in local star-forming galaxies - II. Recent star formation properties and stellar masses
dc.creator.none.fl_str_mv Pérez González, Pablo Guillermo
Gil De Paz, Armando
Zamorano Calvo, Jaime
Gallego Maestro, Jesús
Alonso Herrero, A.
Aragón Salamanca, A.
author Pérez González, Pablo Guillermo
author_facet Pérez González, Pablo Guillermo
Gil De Paz, Armando
Zamorano Calvo, Jaime
Gallego Maestro, Jesús
Alonso Herrero, A.
Aragón Salamanca, A.
author_role author
author2 Gil De Paz, Armando
Zamorano Calvo, Jaime
Gallego Maestro, Jesús
Alonso Herrero, A.
Aragón Salamanca, A.
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Universidad Complutense de Madrid
dc.subject.none.fl_str_mv 52
Emission-line galaxies
Band surface photometry
Disk dominated galaxies
Blue compact galaxies
Hubble deep field
UCM list-I
Formation history
Starburst galaxies
Optical photometry
Spiral galaxies
Astrofísica
Astronomía (Física)
topic 52
Emission-line galaxies
Band surface photometry
Disk dominated galaxies
Blue compact galaxies
Hubble deep field
UCM list-I
Formation history
Starburst galaxies
Optical photometry
Spiral galaxies
Astrofísica
Astronomía (Física)
description We present the integrated properties of the stellar populations in the Universidad Complutense de Madrid (UCM) Survey galaxies. Applying the techniques described in the first paper of this series, we derive ages, burst masses and metallicities of the newly formed stars in our sample galaxies. The population of young stars is responsible for the Halpha emission used to detect the objects in the UCM Survey. We also infer total stellar masses and star formation rates in a consistent way taking into account the evolutionary history of each galaxy. We find that an average UCM galaxy has a total stellar mass of ∼10^10 M_⨀, of which about 5 per cent was formed in an instantaneous burst that occurred about 5 Myr ago, and subsolar metallicity. Less than 10 per cent of the sample shows massive starbursts involving more than half of the total mass of the galaxy. Several correlations are found among the derived properties. The burst strength is correlated with the extinction and with the integrated optical colours for galaxies with low obscuration. The current star formation rate is correlated with the gas content. A stellar mass-metallicity relation is also found. Our analysis indicates that the UCM Survey galaxies span a broad range in properties between those of galaxies completely dominated by current/recent star formation and those of normal quiescent spirals. We also find evidence indicating that star formation in the local Universe is dominated by galaxies considerably less massive than L^*.
publishDate 2003
dc.date.none.fl_str_mv 2003
2003-01-11
2003
2003-01-11
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/20.500.14352/51645
url https://hdl.handle.net/20.500.14352/51645
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Wiley
publisher.none.fl_str_mv Wiley
dc.source.none.fl_str_mv reponame:Docta Complutense
instname:Universidad Complutense de Madrid (UCM)
instname_str Universidad Complutense de Madrid (UCM)
reponame_str Docta Complutense
collection Docta Complutense
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869425793878196224
score 15,300719

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