Cosmological gas accretion history onto the stellar discs of Milky Way-like galaxies in the Auriga simulations – (I) Temporal dependency

Autores
Iza, Federico; Scannapieco, Cecilia; Nuza, Sebastian Ernesto; Grand, R.; Gómez, Facundo Ariel; Springel, V.; Pakmor, R.; Marinacci, F.
Año de publicación
2022
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We use the 30 simulations of the Auriga Project to estimate the temporal dependency of the inflow, outflow, and net accretion rates onto the discs of Milky Way-like galaxies. The net accretion rates are found to be similar for all galaxies at early times, increasing rapidly up to ∼10 M⊙yr−1" role="presentation">∼10 M⊙yr−1⁠. After ∼6 Gyr of evolution, however, the net accretion rates are diverse: in most galaxies, these exhibit an exponential-like decay, but some systems instead present increasing or approximately constant levels up to the present time. An exponential fit to the net accretion rates averaged over the MW analogues yields typical decay time-scale of 7.2 Gyr. The analysis of the time-evolution of the inflow and outflow rates, and their relation to the star formation rate (SFR) in the discs, confirms the close connection between these quantities. First, the inflow/outflow ratio stays approximately constant, with typical values of M˙out/M˙in∼0.75" role="presentation">M˙out/M˙in∼0.75⁠, indicating that the gas mass involved in outflows is of the order of 25 per cent lower compared to that involved in inflows. A similar behaviour is found for the SFR/inflow rate ratio, with typical values between 0.1 and 0.3, and for the outflow rate/SFR, which varies in the range 3.5–5.5. Our results show that continuous inflow is key to the SFR levels in disc galaxies, and that the star formation activity and the subsequent feedback in the discs is able to produce mass-loaded galaxy winds in the disc–halo interface.
Fil: Iza, Federico. Consejo Nacional de Investigaciones 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: Scannapieco, Cecilia. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Nuza, Sebastian Ernesto. Consejo Nacional de Investigaciones 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: Grand, R.. Instituto de Astrofísica de Canarias; España. Universidad de La Laguna; España
Fil: Gómez, Facundo Ariel. Universidad de La Serena; Chile
Fil: Springel, V.. Gobierno de la República Federal de Alemania. Max Planck Institut für Astrophysik; Alemania
Fil: Pakmor, R.. Gobierno de la República Federal de Alemania. Max Planck Institut für Astrophysik; Alemania
Fil: Marinacci, F.. Università di Bologna; Italia
Materia
HYDRODYNAMICS
METHODS: NUMERICAL
GALAXIES: EVOLUTION
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:11336/197339
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/197339
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Cosmological gas accretion history onto the stellar discs of Milky Way-like galaxies in the Auriga simulations – (I) Temporal dependencyIza, FedericoScannapieco, CeciliaNuza, Sebastian ErnestoGrand, R.Gómez, Facundo ArielSpringel, V.Pakmor, R.Marinacci, F.HYDRODYNAMICSMETHODS: NUMERICALGALAXIES: EVOLUTIONhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We use the 30 simulations of the Auriga Project to estimate the temporal dependency of the inflow, outflow, and net accretion rates onto the discs of Milky Way-like galaxies. The net accretion rates are found to be similar for all galaxies at early times, increasing rapidly up to ∼10 M⊙yr−1" role="presentation">∼10 M⊙yr−1⁠. After ∼6 Gyr of evolution, however, the net accretion rates are diverse: in most galaxies, these exhibit an exponential-like decay, but some systems instead present increasing or approximately constant levels up to the present time. An exponential fit to the net accretion rates averaged over the MW analogues yields typical decay time-scale of 7.2 Gyr. The analysis of the time-evolution of the inflow and outflow rates, and their relation to the star formation rate (SFR) in the discs, confirms the close connection between these quantities. First, the inflow/outflow ratio stays approximately constant, with typical values of M˙out/M˙in∼0.75" role="presentation">M˙out/M˙in∼0.75⁠, indicating that the gas mass involved in outflows is of the order of 25 per cent lower compared to that involved in inflows. A similar behaviour is found for the SFR/inflow rate ratio, with typical values between 0.1 and 0.3, and for the outflow rate/SFR, which varies in the range 3.5–5.5. Our results show that continuous inflow is key to the SFR levels in disc galaxies, and that the star formation activity and the subsequent feedback in the discs is able to produce mass-loaded galaxy winds in the disc–halo interface.Fil: Iza, Federico. Consejo Nacional de Investigaciones 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: Scannapieco, Cecilia. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Nuza, Sebastian Ernesto. Consejo Nacional de Investigaciones 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: Grand, R.. Instituto de Astrofísica de Canarias; España. Universidad de La Laguna; EspañaFil: Gómez, Facundo Ariel. Universidad de La Serena; ChileFil: Springel, V.. Gobierno de la República Federal de Alemania. Max Planck Institut für Astrophysik; AlemaniaFil: Pakmor, R.. Gobierno de la República Federal de Alemania. Max Planck Institut für Astrophysik; AlemaniaFil: Marinacci, F.. Università di Bologna; ItaliaWiley Blackwell Publishing, Inc2022-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/197339Iza, Federico; Scannapieco, Cecilia; Nuza, Sebastian Ernesto; Grand, R.; Gómez, Facundo Ariel; et al.; Cosmological gas accretion history onto the stellar discs of Milky Way-like galaxies in the Auriga simulations – (I) Temporal dependency; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 517; 1; 11-2022; 832-8520035-8711CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article-abstract/517/1/832/6717661info:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stac2709info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:40:20Zoai:ri.conicet.gov.ar:11336/197339instacron: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 10:40:20.422CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Cosmological gas accretion history onto the stellar discs of Milky Way-like galaxies in the Auriga simulations – (I) Temporal dependency
title Cosmological gas accretion history onto the stellar discs of Milky Way-like galaxies in the Auriga simulations – (I) Temporal dependency
spellingShingle Cosmological gas accretion history onto the stellar discs of Milky Way-like galaxies in the Auriga simulations – (I) Temporal dependency
Iza, Federico
HYDRODYNAMICS
METHODS: NUMERICAL
GALAXIES: EVOLUTION
title_short Cosmological gas accretion history onto the stellar discs of Milky Way-like galaxies in the Auriga simulations – (I) Temporal dependency
title_full Cosmological gas accretion history onto the stellar discs of Milky Way-like galaxies in the Auriga simulations – (I) Temporal dependency
title_fullStr Cosmological gas accretion history onto the stellar discs of Milky Way-like galaxies in the Auriga simulations – (I) Temporal dependency
title_full_unstemmed Cosmological gas accretion history onto the stellar discs of Milky Way-like galaxies in the Auriga simulations – (I) Temporal dependency
title_sort Cosmological gas accretion history onto the stellar discs of Milky Way-like galaxies in the Auriga simulations – (I) Temporal dependency
dc.creator.none.fl_str_mv Iza, Federico
Scannapieco, Cecilia
Nuza, Sebastian Ernesto
Grand, R.
Gómez, Facundo Ariel
Springel, V.
Pakmor, R.
Marinacci, F.
author Iza, Federico
author_facet Iza, Federico
Scannapieco, Cecilia
Nuza, Sebastian Ernesto
Grand, R.
Gómez, Facundo Ariel
Springel, V.
Pakmor, R.
Marinacci, F.
author_role author
author2 Scannapieco, Cecilia
Nuza, Sebastian Ernesto
Grand, R.
Gómez, Facundo Ariel
Springel, V.
Pakmor, R.
Marinacci, F.
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv HYDRODYNAMICS
METHODS: NUMERICAL
GALAXIES: EVOLUTION
topic HYDRODYNAMICS
METHODS: NUMERICAL
GALAXIES: EVOLUTION
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 use the 30 simulations of the Auriga Project to estimate the temporal dependency of the inflow, outflow, and net accretion rates onto the discs of Milky Way-like galaxies. The net accretion rates are found to be similar for all galaxies at early times, increasing rapidly up to ∼10 M⊙yr−1" role="presentation">∼10 M⊙yr−1⁠. After ∼6 Gyr of evolution, however, the net accretion rates are diverse: in most galaxies, these exhibit an exponential-like decay, but some systems instead present increasing or approximately constant levels up to the present time. An exponential fit to the net accretion rates averaged over the MW analogues yields typical decay time-scale of 7.2 Gyr. The analysis of the time-evolution of the inflow and outflow rates, and their relation to the star formation rate (SFR) in the discs, confirms the close connection between these quantities. First, the inflow/outflow ratio stays approximately constant, with typical values of M˙out/M˙in∼0.75" role="presentation">M˙out/M˙in∼0.75⁠, indicating that the gas mass involved in outflows is of the order of 25 per cent lower compared to that involved in inflows. A similar behaviour is found for the SFR/inflow rate ratio, with typical values between 0.1 and 0.3, and for the outflow rate/SFR, which varies in the range 3.5–5.5. Our results show that continuous inflow is key to the SFR levels in disc galaxies, and that the star formation activity and the subsequent feedback in the discs is able to produce mass-loaded galaxy winds in the disc–halo interface.
Fil: Iza, Federico. Consejo Nacional de Investigaciones 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: Scannapieco, Cecilia. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Nuza, Sebastian Ernesto. Consejo Nacional de Investigaciones 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: Grand, R.. Instituto de Astrofísica de Canarias; España. Universidad de La Laguna; España
Fil: Gómez, Facundo Ariel. Universidad de La Serena; Chile
Fil: Springel, V.. Gobierno de la República Federal de Alemania. Max Planck Institut für Astrophysik; Alemania
Fil: Pakmor, R.. Gobierno de la República Federal de Alemania. Max Planck Institut für Astrophysik; Alemania
Fil: Marinacci, F.. Università di Bologna; Italia
description We use the 30 simulations of the Auriga Project to estimate the temporal dependency of the inflow, outflow, and net accretion rates onto the discs of Milky Way-like galaxies. The net accretion rates are found to be similar for all galaxies at early times, increasing rapidly up to ∼10 M⊙yr−1" role="presentation">∼10 M⊙yr−1⁠. After ∼6 Gyr of evolution, however, the net accretion rates are diverse: in most galaxies, these exhibit an exponential-like decay, but some systems instead present increasing or approximately constant levels up to the present time. An exponential fit to the net accretion rates averaged over the MW analogues yields typical decay time-scale of 7.2 Gyr. The analysis of the time-evolution of the inflow and outflow rates, and their relation to the star formation rate (SFR) in the discs, confirms the close connection between these quantities. First, the inflow/outflow ratio stays approximately constant, with typical values of M˙out/M˙in∼0.75" role="presentation">M˙out/M˙in∼0.75⁠, indicating that the gas mass involved in outflows is of the order of 25 per cent lower compared to that involved in inflows. A similar behaviour is found for the SFR/inflow rate ratio, with typical values between 0.1 and 0.3, and for the outflow rate/SFR, which varies in the range 3.5–5.5. Our results show that continuous inflow is key to the SFR levels in disc galaxies, and that the star formation activity and the subsequent feedback in the discs is able to produce mass-loaded galaxy winds in the disc–halo interface.
publishDate 2022
dc.date.none.fl_str_mv 2022-11
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/11336/197339
Iza, Federico; Scannapieco, Cecilia; Nuza, Sebastian Ernesto; Grand, R.; Gómez, Facundo Ariel; et al.; Cosmological gas accretion history onto the stellar discs of Milky Way-like galaxies in the Auriga simulations – (I) Temporal dependency; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 517; 1; 11-2022; 832-852
0035-8711
CONICET Digital
CONICET
url http://hdl.handle.net/11336/197339
identifier_str_mv Iza, Federico; Scannapieco, Cecilia; Nuza, Sebastian Ernesto; Grand, R.; Gómez, Facundo Ariel; et al.; Cosmological gas accretion history onto the stellar discs of Milky Way-like galaxies in the Auriga simulations – (I) Temporal dependency; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 517; 1; 11-2022; 832-852
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/url/https://academic.oup.com/mnras/article-abstract/517/1/832/6717661
info:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stac2709
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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