Semi-analytic galaxies : I. Synthesis of environmental and star-forming regulation mechanisms

Autores
Cora, Sofía Alejandra; Vega Martínez, Cristian Antonio; Hough, Tomás; Ruiz, Andrés Nicolás; Orsi Moyano, Alvaro Antonino; Muñoz Arancibia, Alejandra M.; Gargiulo, Ignacio Daniel; Collacchioni, Florencia; Padilla, Nelson David; Gottlöber, Stefan; Yepes, Gustavo
Año de publicación
2018
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We present results from the semi-analytic model of galaxy formation SAG applied on the MULTIDARK simulation MDPL2. SAG features an updated supernova (SN) feedback scheme and a robust modelling of the environmental effects on satellite galaxies. This incorporates a gradual starvation of the hot gas halo driven by the action of ram pressure stripping (RPS), that can affect the cold gas disc, and tidal stripping (TS), which can act on all baryonic components. Galaxy orbits of orphan satellites are integrated providing adequate positions and velocities for the estimation of RPS and TS. The star formation history and stellar mass assembly of galaxies are sensitive to the redshift dependence implemented in the SN feedback model. We discuss a variant of our model that allows to reconcile the predicted star formation rate density at z ≳ 3 with the observed one, at the expense of an excess in the faint end of the stellar mass function at z= 2. The fractions of passive galaxies as a function of stellar mass, halo mass, and the halo-centric distances are consistent with observational measurements. The model also reproduces the evolution of the main sequence of star-forming central and satellite galaxies. The similarity between them is a result of the gradual starvation of the hot gas halo suffered by satellites, in which RPS plays a dominant role. RPS of the cold gas does not affect the fraction of quenched satellites but it contributes to reach the right atomic hydrogen gas content for more massive satellites (M* ≳1010M⊙).
Instituto de Astrofísica de La Plata
Facultad de Ciencias Astronómicas y Geofísicas
Materia
Astronomía
Física
Ciencias Naturales
Ciencias Exactas
Methods: numerical
Catalogues
Galaxies: clusters: general
Galaxies: evolution
Galaxies: formation
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/93609
Acceder
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oai_identifier_str oai:sedici.unlp.edu.ar:10915/93609
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Semi-analytic galaxies : I. Synthesis of environmental and star-forming regulation mechanismsCora, Sofía AlejandraVega Martínez, Cristian AntonioHough, TomásRuiz, Andrés NicolásOrsi Moyano, Alvaro AntoninoMuñoz Arancibia, Alejandra M.Gargiulo, Ignacio DanielCollacchioni, FlorenciaPadilla, Nelson DavidGottlöber, StefanYepes, GustavoAstronomíaFísicaCiencias NaturalesCiencias ExactasMethods: numericalCataloguesGalaxies: clusters: generalGalaxies: evolutionGalaxies: formationWe present results from the semi-analytic model of galaxy formation SAG applied on the MULTIDARK simulation MDPL2. SAG features an updated supernova (SN) feedback scheme and a robust modelling of the environmental effects on satellite galaxies. This incorporates a gradual starvation of the hot gas halo driven by the action of ram pressure stripping (RPS), that can affect the cold gas disc, and tidal stripping (TS), which can act on all baryonic components. Galaxy orbits of orphan satellites are integrated providing adequate positions and velocities for the estimation of RPS and TS. The star formation history and stellar mass assembly of galaxies are sensitive to the redshift dependence implemented in the SN feedback model. We discuss a variant of our model that allows to reconcile the predicted star formation rate density at z ≳ 3 with the observed one, at the expense of an excess in the faint end of the stellar mass function at z= 2. The fractions of passive galaxies as a function of stellar mass, halo mass, and the halo-centric distances are consistent with observational measurements. The model also reproduces the evolution of the main sequence of star-forming central and satellite galaxies. The similarity between them is a result of the gradual starvation of the hot gas halo suffered by satellites, in which RPS plays a dominant role. RPS of the cold gas does not affect the fraction of quenched satellites but it contributes to reach the right atomic hydrogen gas content for more massive satellites (M* ≳10<sup>10</sup>M⊙).Instituto de Astrofísica de La PlataFacultad de Ciencias Astronómicas y Geofísicas2018-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf2-24http://sedici.unlp.edu.ar/handle/10915/93609enginfo:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article/479/1/2/4992332info:eu-repo/semantics/altIdentifier/issn/0035-8711info:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/sty1131info:eu-repo/semantics/altIdentifier/hdl/11336/82468info:eu-repo/semantics/reference/hdl/10915/93930info:eu-repo/semantics/reference/hdl/10915/125383info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/2.5/ar/Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Argentina (CC BY-NC-SA 2.5)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:19:26Zoai:sedici.unlp.edu.ar:10915/93609Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:19:26.888SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Semi-analytic galaxies : I. Synthesis of environmental and star-forming regulation mechanisms
title Semi-analytic galaxies : I. Synthesis of environmental and star-forming regulation mechanisms
spellingShingle Semi-analytic galaxies : I. Synthesis of environmental and star-forming regulation mechanisms
Cora, Sofía Alejandra
Astronomía
Física
Ciencias Naturales
Ciencias Exactas
Methods: numerical
Catalogues
Galaxies: clusters: general
Galaxies: evolution
Galaxies: formation
title_short Semi-analytic galaxies : I. Synthesis of environmental and star-forming regulation mechanisms
title_full Semi-analytic galaxies : I. Synthesis of environmental and star-forming regulation mechanisms
title_fullStr Semi-analytic galaxies : I. Synthesis of environmental and star-forming regulation mechanisms
title_full_unstemmed Semi-analytic galaxies : I. Synthesis of environmental and star-forming regulation mechanisms
title_sort Semi-analytic galaxies : I. Synthesis of environmental and star-forming regulation mechanisms
dc.creator.none.fl_str_mv Cora, Sofía Alejandra
Vega Martínez, Cristian Antonio
Hough, Tomás
Ruiz, Andrés Nicolás
Orsi Moyano, Alvaro Antonino
Muñoz Arancibia, Alejandra M.
Gargiulo, Ignacio Daniel
Collacchioni, Florencia
Padilla, Nelson David
Gottlöber, Stefan
Yepes, Gustavo
author Cora, Sofía Alejandra
author_facet Cora, Sofía Alejandra
Vega Martínez, Cristian Antonio
Hough, Tomás
Ruiz, Andrés Nicolás
Orsi Moyano, Alvaro Antonino
Muñoz Arancibia, Alejandra M.
Gargiulo, Ignacio Daniel
Collacchioni, Florencia
Padilla, Nelson David
Gottlöber, Stefan
Yepes, Gustavo
author_role author
author2 Vega Martínez, Cristian Antonio
Hough, Tomás
Ruiz, Andrés Nicolás
Orsi Moyano, Alvaro Antonino
Muñoz Arancibia, Alejandra M.
Gargiulo, Ignacio Daniel
Collacchioni, Florencia
Padilla, Nelson David
Gottlöber, Stefan
Yepes, Gustavo
author2_role author
author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Astronomía
Física
Ciencias Naturales
Ciencias Exactas
Methods: numerical
Catalogues
Galaxies: clusters: general
Galaxies: evolution
Galaxies: formation
topic Astronomía
Física
Ciencias Naturales
Ciencias Exactas
Methods: numerical
Catalogues
Galaxies: clusters: general
Galaxies: evolution
Galaxies: formation
dc.description.none.fl_txt_mv We present results from the semi-analytic model of galaxy formation SAG applied on the MULTIDARK simulation MDPL2. SAG features an updated supernova (SN) feedback scheme and a robust modelling of the environmental effects on satellite galaxies. This incorporates a gradual starvation of the hot gas halo driven by the action of ram pressure stripping (RPS), that can affect the cold gas disc, and tidal stripping (TS), which can act on all baryonic components. Galaxy orbits of orphan satellites are integrated providing adequate positions and velocities for the estimation of RPS and TS. The star formation history and stellar mass assembly of galaxies are sensitive to the redshift dependence implemented in the SN feedback model. We discuss a variant of our model that allows to reconcile the predicted star formation rate density at z ≳ 3 with the observed one, at the expense of an excess in the faint end of the stellar mass function at z= 2. The fractions of passive galaxies as a function of stellar mass, halo mass, and the halo-centric distances are consistent with observational measurements. The model also reproduces the evolution of the main sequence of star-forming central and satellite galaxies. The similarity between them is a result of the gradual starvation of the hot gas halo suffered by satellites, in which RPS plays a dominant role. RPS of the cold gas does not affect the fraction of quenched satellites but it contributes to reach the right atomic hydrogen gas content for more massive satellites (M* ≳10<sup>10</sup>M⊙).
Instituto de Astrofísica de La Plata
Facultad de Ciencias Astronómicas y Geofísicas
description We present results from the semi-analytic model of galaxy formation SAG applied on the MULTIDARK simulation MDPL2. SAG features an updated supernova (SN) feedback scheme and a robust modelling of the environmental effects on satellite galaxies. This incorporates a gradual starvation of the hot gas halo driven by the action of ram pressure stripping (RPS), that can affect the cold gas disc, and tidal stripping (TS), which can act on all baryonic components. Galaxy orbits of orphan satellites are integrated providing adequate positions and velocities for the estimation of RPS and TS. The star formation history and stellar mass assembly of galaxies are sensitive to the redshift dependence implemented in the SN feedback model. We discuss a variant of our model that allows to reconcile the predicted star formation rate density at z ≳ 3 with the observed one, at the expense of an excess in the faint end of the stellar mass function at z= 2. The fractions of passive galaxies as a function of stellar mass, halo mass, and the halo-centric distances are consistent with observational measurements. The model also reproduces the evolution of the main sequence of star-forming central and satellite galaxies. The similarity between them is a result of the gradual starvation of the hot gas halo suffered by satellites, in which RPS plays a dominant role. RPS of the cold gas does not affect the fraction of quenched satellites but it contributes to reach the right atomic hydrogen gas content for more massive satellites (M* ≳10<sup>10</sup>M⊙).
publishDate 2018
dc.date.none.fl_str_mv 2018-09
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
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://sedici.unlp.edu.ar/handle/10915/93609
url http://sedici.unlp.edu.ar/handle/10915/93609
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article/479/1/2/4992332
info:eu-repo/semantics/altIdentifier/issn/0035-8711
info:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/sty1131
info:eu-repo/semantics/altIdentifier/hdl/11336/82468
info:eu-repo/semantics/reference/hdl/10915/93930
info:eu-repo/semantics/reference/hdl/10915/125383
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Argentina (CC BY-NC-SA 2.5)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Argentina (CC BY-NC-SA 2.5)
dc.format.none.fl_str_mv application/pdf
2-24
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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score 13.070432

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