Feedback and metal enrichment in cosmological SPH simulations - II. A multiphase model with supernova energy feedback

Autores
Scannapieco, Cecilia; Tissera, Patricia Beatriz; White, Simon D. M.; Springel, Volker
Año de publicación
2006
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We have developed a new scheme to treat a multiphase interstellar medium in smoothed particle hydrodynamics simulations of galaxy formation. This scheme can represent a cospatial mixture of cold and hot ISM components, and is formulated without scale-dependent parameters. It is thus particularly suited to studies of cosmological structure formation where galaxies with a wide range of masses form simultaneously. We also present new algorithms for energy and heavy element injection by supernovae, and show that together these schemes can reproduce several important observed effects in galaxy evolution. Both in collapsing systems and in quiescent galaxies our codes can reproduce the Kennicutt relation between the surface densities of gas and of star formation. Strongly metal-enhanced winds are generated in both cases with ratios of mass-loss to star formation which are similar to those observed. This leads to a self-regulated cycle for star formation activity. The overall impact of feedback depends on galaxy mass. Star formation is suppressed at most by a factor of a few in massive galaxies, but in low-mass systems the effects can be much larger, giving star formation an episodic, bursty character. The larger the energy fraction assumed available in feedback, the more massive the outflows and the lower the final stellar masses. Winds from forming discs are collimated perpendicular to the disc plane, reach velocities up to ∼1000 km s −1, and efficiently transport metals out of the galaxies. The asymptotically unbound baryon fraction drops from >95 per cent to ∼30 per cent from the least to the most massive of our idealized galaxies, but the fraction of all metals ejected with this component exceeds 60 per cent regardless of mass. Such winds could plausibly enrich the intergalactic medium to observed levels.
Fil: Scannapieco, Cecilia. 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: Tissera, Patricia Beatriz. 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: White, Simon D. M.. Gobierno de la Republica Federal de Alemania. Max Planck Institut Fur Astrophysik; Alemania
Fil: Springel, Volker. Gobierno de la Republica Federal de Alemania. Max Planck Institut Fur Astrophysik; Alemania
Materia
METHODS; N-BODY SIMULATIONS
GALAXIES: ABUNDANCES
GALAXIES:EVOLUTION
GALAXIES:FORMATION
COSMOLOGY:THEORY
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:11336/22009
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Feedback and metal enrichment in cosmological SPH simulations - II. A multiphase model with supernova energy feedbackScannapieco, CeciliaTissera, Patricia BeatrizWhite, Simon D. M.Springel, VolkerMETHODS; N-BODY SIMULATIONSGALAXIES: ABUNDANCESGALAXIES:EVOLUTIONGALAXIES:FORMATIONCOSMOLOGY:THEORYhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We have developed a new scheme to treat a multiphase interstellar medium in smoothed particle hydrodynamics simulations of galaxy formation. This scheme can represent a cospatial mixture of cold and hot ISM components, and is formulated without scale-dependent parameters. It is thus particularly suited to studies of cosmological structure formation where galaxies with a wide range of masses form simultaneously. We also present new algorithms for energy and heavy element injection by supernovae, and show that together these schemes can reproduce several important observed effects in galaxy evolution. Both in collapsing systems and in quiescent galaxies our codes can reproduce the Kennicutt relation between the surface densities of gas and of star formation. Strongly metal-enhanced winds are generated in both cases with ratios of mass-loss to star formation which are similar to those observed. This leads to a self-regulated cycle for star formation activity. The overall impact of feedback depends on galaxy mass. Star formation is suppressed at most by a factor of a few in massive galaxies, but in low-mass systems the effects can be much larger, giving star formation an episodic, bursty character. The larger the energy fraction assumed available in feedback, the more massive the outflows and the lower the final stellar masses. Winds from forming discs are collimated perpendicular to the disc plane, reach velocities up to ∼1000 km s −1, and efficiently transport metals out of the galaxies. The asymptotically unbound baryon fraction drops from >95 per cent to ∼30 per cent from the least to the most massive of our idealized galaxies, but the fraction of all metals ejected with this component exceeds 60 per cent regardless of mass. Such winds could plausibly enrich the intergalactic medium to observed levels.Fil: Scannapieco, Cecilia. 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: Tissera, Patricia Beatriz. 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: White, Simon D. M.. Gobierno de la Republica Federal de Alemania. Max Planck Institut Fur Astrophysik; AlemaniaFil: Springel, Volker. Gobierno de la Republica Federal de Alemania. Max Planck Institut Fur Astrophysik; AlemaniaOxford University Press2006-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/22009Scannapieco, Cecilia; Tissera, Patricia Beatriz; White, Simon D. M.; Springel, Volker; Feedback and metal enrichment in cosmological SPH simulations - II. A multiphase model with supernova energy feedback; Oxford University Press; Monthly Notices of the Royal Astronomical Society; 371; 3; 9-2006; 1125-11390035-8711CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://mnras.oxfordjournals.org/content/371/3/1125info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1365-2966.2006.10785.xinfo:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/astro-ph/0604524info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:10:56Zoai:ri.conicet.gov.ar:11336/22009instacron: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 10:10:56.336CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Feedback and metal enrichment in cosmological SPH simulations - II. A multiphase model with supernova energy feedback
title Feedback and metal enrichment in cosmological SPH simulations - II. A multiphase model with supernova energy feedback
spellingShingle Feedback and metal enrichment in cosmological SPH simulations - II. A multiphase model with supernova energy feedback
Scannapieco, Cecilia
METHODS; N-BODY SIMULATIONS
GALAXIES: ABUNDANCES
GALAXIES:EVOLUTION
GALAXIES:FORMATION
COSMOLOGY:THEORY
title_short Feedback and metal enrichment in cosmological SPH simulations - II. A multiphase model with supernova energy feedback
title_full Feedback and metal enrichment in cosmological SPH simulations - II. A multiphase model with supernova energy feedback
title_fullStr Feedback and metal enrichment in cosmological SPH simulations - II. A multiphase model with supernova energy feedback
title_full_unstemmed Feedback and metal enrichment in cosmological SPH simulations - II. A multiphase model with supernova energy feedback
title_sort Feedback and metal enrichment in cosmological SPH simulations - II. A multiphase model with supernova energy feedback
dc.creator.none.fl_str_mv Scannapieco, Cecilia
Tissera, Patricia Beatriz
White, Simon D. M.
Springel, Volker
author Scannapieco, Cecilia
author_facet Scannapieco, Cecilia
Tissera, Patricia Beatriz
White, Simon D. M.
Springel, Volker
author_role author
author2 Tissera, Patricia Beatriz
White, Simon D. M.
Springel, Volker
author2_role author
author
author
dc.subject.none.fl_str_mv METHODS; N-BODY SIMULATIONS
GALAXIES: ABUNDANCES
GALAXIES:EVOLUTION
GALAXIES:FORMATION
COSMOLOGY:THEORY
topic METHODS; N-BODY SIMULATIONS
GALAXIES: ABUNDANCES
GALAXIES:EVOLUTION
GALAXIES:FORMATION
COSMOLOGY:THEORY
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 have developed a new scheme to treat a multiphase interstellar medium in smoothed particle hydrodynamics simulations of galaxy formation. This scheme can represent a cospatial mixture of cold and hot ISM components, and is formulated without scale-dependent parameters. It is thus particularly suited to studies of cosmological structure formation where galaxies with a wide range of masses form simultaneously. We also present new algorithms for energy and heavy element injection by supernovae, and show that together these schemes can reproduce several important observed effects in galaxy evolution. Both in collapsing systems and in quiescent galaxies our codes can reproduce the Kennicutt relation between the surface densities of gas and of star formation. Strongly metal-enhanced winds are generated in both cases with ratios of mass-loss to star formation which are similar to those observed. This leads to a self-regulated cycle for star formation activity. The overall impact of feedback depends on galaxy mass. Star formation is suppressed at most by a factor of a few in massive galaxies, but in low-mass systems the effects can be much larger, giving star formation an episodic, bursty character. The larger the energy fraction assumed available in feedback, the more massive the outflows and the lower the final stellar masses. Winds from forming discs are collimated perpendicular to the disc plane, reach velocities up to ∼1000 km s −1, and efficiently transport metals out of the galaxies. The asymptotically unbound baryon fraction drops from >95 per cent to ∼30 per cent from the least to the most massive of our idealized galaxies, but the fraction of all metals ejected with this component exceeds 60 per cent regardless of mass. Such winds could plausibly enrich the intergalactic medium to observed levels.
Fil: Scannapieco, Cecilia. 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: Tissera, Patricia Beatriz. 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: White, Simon D. M.. Gobierno de la Republica Federal de Alemania. Max Planck Institut Fur Astrophysik; Alemania
Fil: Springel, Volker. Gobierno de la Republica Federal de Alemania. Max Planck Institut Fur Astrophysik; Alemania
description We have developed a new scheme to treat a multiphase interstellar medium in smoothed particle hydrodynamics simulations of galaxy formation. This scheme can represent a cospatial mixture of cold and hot ISM components, and is formulated without scale-dependent parameters. It is thus particularly suited to studies of cosmological structure formation where galaxies with a wide range of masses form simultaneously. We also present new algorithms for energy and heavy element injection by supernovae, and show that together these schemes can reproduce several important observed effects in galaxy evolution. Both in collapsing systems and in quiescent galaxies our codes can reproduce the Kennicutt relation between the surface densities of gas and of star formation. Strongly metal-enhanced winds are generated in both cases with ratios of mass-loss to star formation which are similar to those observed. This leads to a self-regulated cycle for star formation activity. The overall impact of feedback depends on galaxy mass. Star formation is suppressed at most by a factor of a few in massive galaxies, but in low-mass systems the effects can be much larger, giving star formation an episodic, bursty character. The larger the energy fraction assumed available in feedback, the more massive the outflows and the lower the final stellar masses. Winds from forming discs are collimated perpendicular to the disc plane, reach velocities up to ∼1000 km s −1, and efficiently transport metals out of the galaxies. The asymptotically unbound baryon fraction drops from >95 per cent to ∼30 per cent from the least to the most massive of our idealized galaxies, but the fraction of all metals ejected with this component exceeds 60 per cent regardless of mass. Such winds could plausibly enrich the intergalactic medium to observed levels.
publishDate 2006
dc.date.none.fl_str_mv 2006-09
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/11336/22009
Scannapieco, Cecilia; Tissera, Patricia Beatriz; White, Simon D. M.; Springel, Volker; Feedback and metal enrichment in cosmological SPH simulations - II. A multiphase model with supernova energy feedback; Oxford University Press; Monthly Notices of the Royal Astronomical Society; 371; 3; 9-2006; 1125-1139
0035-8711
CONICET Digital
CONICET
url http://hdl.handle.net/11336/22009
identifier_str_mv Scannapieco, Cecilia; Tissera, Patricia Beatriz; White, Simon D. M.; Springel, Volker; Feedback and metal enrichment in cosmological SPH simulations - II. A multiphase model with supernova energy feedback; Oxford University Press; Monthly Notices of the Royal Astronomical Society; 371; 3; 9-2006; 1125-1139
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/http://mnras.oxfordjournals.org/content/371/3/1125
info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1365-2966.2006.10785.x
info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/astro-ph/0604524
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
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Oxford University Press
publisher.none.fl_str_mv Oxford University Press
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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