The gas metallicity gradient and the star formation activity of disc galaxies

Autores
Tissera, Patricia Beatriz; Pedrosa, Susana Elizabeth; Sillero, Emanuel; Vilchez, José M.
Año de publicación
2016
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We study oxygen abundance profiles of the gaseous disc components in simulatedgalaxies in a hierarchical universe. We analyse the disc metallicity gradients in relationto the stellar masses and star formation rates of the simulated galaxies. We find a trendfor galaxies with low stellar masses to have steeper metallicity gradients than galaxieswith high stellar masses at z ∼ 0. We also detect that the gas-phase metallicityslopes and the specific star formation rate (sSFR) of our simulated disc galaxies areconsistent with recently reported observations at z ∼ 0. Simulated galaxies with highstellar masses reproduce the observed relationship at all analysed redshifts and have anincreasing contribution of discs with positive metallicity slopes with increasing redshift.Simulated galaxies with low stellar masses a have larger fraction of negative metallicitygradients with increasing redshift. Simulated galaxies with positive or very negativemetallicity slopes exhibit disturbed morphologies and/or have a close neighbour. Weanalyse the evolution of the slope of the oxygen profile and sSFR for a gas-rich galaxygalaxyencounter, finding that this kind of events could generate either positive andnegative gas-phase oxygen profiles depending on their state of evolution. Our resultssupport claims that the determination of reliable metallicity gradients as a function ofredshift is a key piece of information to understand galaxy formation and set constrainson the subgrid physics.
Fil: Tissera, Patricia Beatriz. Universidad Andres Bello; Chile. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
Fil: Pedrosa, Susana Elizabeth. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
Fil: Sillero, Emanuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomia Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomia Teórica y Experimental; Argentina
Fil: Vilchez, José M.. Instituto de Astrofísica de Andalucía; España
Materia
GALAXIES ABUNDANCES
GALAXIES EVOLUTION
COSMOLOGY DARK MATTER
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/24180
Acceder
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling The gas metallicity gradient and the star formation activity of disc galaxiesTissera, Patricia BeatrizPedrosa, Susana ElizabethSillero, EmanuelVilchez, José M.GALAXIES ABUNDANCESGALAXIES EVOLUTIONCOSMOLOGY DARK MATTERhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We study oxygen abundance profiles of the gaseous disc components in simulatedgalaxies in a hierarchical universe. We analyse the disc metallicity gradients in relationto the stellar masses and star formation rates of the simulated galaxies. We find a trendfor galaxies with low stellar masses to have steeper metallicity gradients than galaxieswith high stellar masses at z ∼ 0. We also detect that the gas-phase metallicityslopes and the specific star formation rate (sSFR) of our simulated disc galaxies areconsistent with recently reported observations at z ∼ 0. Simulated galaxies with highstellar masses reproduce the observed relationship at all analysed redshifts and have anincreasing contribution of discs with positive metallicity slopes with increasing redshift.Simulated galaxies with low stellar masses a have larger fraction of negative metallicitygradients with increasing redshift. Simulated galaxies with positive or very negativemetallicity slopes exhibit disturbed morphologies and/or have a close neighbour. Weanalyse the evolution of the slope of the oxygen profile and sSFR for a gas-rich galaxygalaxyencounter, finding that this kind of events could generate either positive andnegative gas-phase oxygen profiles depending on their state of evolution. Our resultssupport claims that the determination of reliable metallicity gradients as a function ofredshift is a key piece of information to understand galaxy formation and set constrainson the subgrid physics.Fil: Tissera, Patricia Beatriz. Universidad Andres Bello; Chile. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; ArgentinaFil: Pedrosa, Susana Elizabeth. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; ArgentinaFil: Sillero, Emanuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomia Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomia Teórica y Experimental; ArgentinaFil: Vilchez, José M.. Instituto de Astrofísica de Andalucía; EspañaWiley Blackwell Publishing, Inc2016-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/24180Tissera, Patricia Beatriz; Pedrosa, Susana Elizabeth; Sillero, Emanuel; Vilchez, José M.; The gas metallicity gradient and the star formation activity of disc galaxies; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 456; 3; 1-3-2016; 2982-29920035-8711CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stv2736info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article-abstract/456/3/2982/1086666/The-gas-metallicity-gradient-and-the-star?redirectedFrom=fulltextinfo:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1511.08227info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:37:41Zoai:ri.conicet.gov.ar:11336/24180instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:37:41.835CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv The gas metallicity gradient and the star formation activity of disc galaxies
title The gas metallicity gradient and the star formation activity of disc galaxies
spellingShingle The gas metallicity gradient and the star formation activity of disc galaxies
Tissera, Patricia Beatriz
GALAXIES ABUNDANCES
GALAXIES EVOLUTION
COSMOLOGY DARK MATTER
title_short The gas metallicity gradient and the star formation activity of disc galaxies
title_full The gas metallicity gradient and the star formation activity of disc galaxies
title_fullStr The gas metallicity gradient and the star formation activity of disc galaxies
title_full_unstemmed The gas metallicity gradient and the star formation activity of disc galaxies
title_sort The gas metallicity gradient and the star formation activity of disc galaxies
dc.creator.none.fl_str_mv Tissera, Patricia Beatriz
Pedrosa, Susana Elizabeth
Sillero, Emanuel
Vilchez, José M.
author Tissera, Patricia Beatriz
author_facet Tissera, Patricia Beatriz
Pedrosa, Susana Elizabeth
Sillero, Emanuel
Vilchez, José M.
author_role author
author2 Pedrosa, Susana Elizabeth
Sillero, Emanuel
Vilchez, José M.
author2_role author
author
author
dc.subject.none.fl_str_mv GALAXIES ABUNDANCES
GALAXIES EVOLUTION
COSMOLOGY DARK MATTER
topic GALAXIES ABUNDANCES
GALAXIES EVOLUTION
COSMOLOGY DARK MATTER
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We study oxygen abundance profiles of the gaseous disc components in simulatedgalaxies in a hierarchical universe. We analyse the disc metallicity gradients in relationto the stellar masses and star formation rates of the simulated galaxies. We find a trendfor galaxies with low stellar masses to have steeper metallicity gradients than galaxieswith high stellar masses at z ∼ 0. We also detect that the gas-phase metallicityslopes and the specific star formation rate (sSFR) of our simulated disc galaxies areconsistent with recently reported observations at z ∼ 0. Simulated galaxies with highstellar masses reproduce the observed relationship at all analysed redshifts and have anincreasing contribution of discs with positive metallicity slopes with increasing redshift.Simulated galaxies with low stellar masses a have larger fraction of negative metallicitygradients with increasing redshift. Simulated galaxies with positive or very negativemetallicity slopes exhibit disturbed morphologies and/or have a close neighbour. Weanalyse the evolution of the slope of the oxygen profile and sSFR for a gas-rich galaxygalaxyencounter, finding that this kind of events could generate either positive andnegative gas-phase oxygen profiles depending on their state of evolution. Our resultssupport claims that the determination of reliable metallicity gradients as a function ofredshift is a key piece of information to understand galaxy formation and set constrainson the subgrid physics.
Fil: Tissera, Patricia Beatriz. Universidad Andres Bello; Chile. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
Fil: Pedrosa, Susana Elizabeth. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
Fil: Sillero, Emanuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomia Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomia Teórica y Experimental; Argentina
Fil: Vilchez, José M.. Instituto de Astrofísica de Andalucía; España
description We study oxygen abundance profiles of the gaseous disc components in simulatedgalaxies in a hierarchical universe. We analyse the disc metallicity gradients in relationto the stellar masses and star formation rates of the simulated galaxies. We find a trendfor galaxies with low stellar masses to have steeper metallicity gradients than galaxieswith high stellar masses at z ∼ 0. We also detect that the gas-phase metallicityslopes and the specific star formation rate (sSFR) of our simulated disc galaxies areconsistent with recently reported observations at z ∼ 0. Simulated galaxies with highstellar masses reproduce the observed relationship at all analysed redshifts and have anincreasing contribution of discs with positive metallicity slopes with increasing redshift.Simulated galaxies with low stellar masses a have larger fraction of negative metallicitygradients with increasing redshift. Simulated galaxies with positive or very negativemetallicity slopes exhibit disturbed morphologies and/or have a close neighbour. Weanalyse the evolution of the slope of the oxygen profile and sSFR for a gas-rich galaxygalaxyencounter, finding that this kind of events could generate either positive andnegative gas-phase oxygen profiles depending on their state of evolution. Our resultssupport claims that the determination of reliable metallicity gradients as a function ofredshift is a key piece of information to understand galaxy formation and set constrainson the subgrid physics.
publishDate 2016
dc.date.none.fl_str_mv 2016-03-01
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/24180
Tissera, Patricia Beatriz; Pedrosa, Susana Elizabeth; Sillero, Emanuel; Vilchez, José M.; The gas metallicity gradient and the star formation activity of disc galaxies; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 456; 3; 1-3-2016; 2982-2992
0035-8711
CONICET Digital
CONICET
url http://hdl.handle.net/11336/24180
identifier_str_mv Tissera, Patricia Beatriz; Pedrosa, Susana Elizabeth; Sillero, Emanuel; Vilchez, José M.; The gas metallicity gradient and the star formation activity of disc galaxies; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 456; 3; 1-3-2016; 2982-2992
0035-8711
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stv2736
info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article-abstract/456/3/2982/1086666/The-gas-metallicity-gradient-and-the-star?redirectedFrom=fulltext
info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1511.08227
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.070432

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