Halo merger tree comparison: Impact on galaxy formation models

Autores
Gómez, Jonathan S.; Padilla, Nelson David; Helly, J.C.; Lacey, C.G.; Baugh, C.M.; Lagos, C.D.P.
Año de publicación
2022
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We examine the effect of using different halo finders and merger tree building algorithms on galaxy properties predicted using the galform semi-analytical model run on a high resolution, large volume dark matter simulation. The halo finders/tree builders hbt, rockstar, subfind, and VELOCI raptor differ in their definitions of halo mass, on whether only spatial or phase-space information is used, and in how they distinguish satellite and main haloes; all of these features have some impact on the model galaxies, even after the trees are post-processed and homogenized by galform. The stellar mass function is insensitive to the halo and merger tree finder adopted. However, we find that the number of central and satellite galaxies in galform does depend slightly on the halo finder/tree builder. The number of galaxies without resolved subhaloes depends strongly on the tree builder, with VELOCIraptor, a phase-space finder, showing the largest population of such galaxies. The distributions of stellar masses, cold and hot gas masses, and star formation rates agree well between different halo finders/tree builders. However, because VELOCIraptor has more early progenitor haloes, with these trees galform produces slightly higher star formation rate densities at high redshift, smaller galaxy sizes, and larger stellar masses for the spheroid component. Since in all cases these differences are small we conclude that, when all of the trees are processed so that the main progenitor mass increases monotonically, the predicted galform galaxy populations are stable and consistent for these four halo finders/tree builders.
Fil: Gómez, Jonathan S.. Universidad Autónoma de Madrid; España. Pontificia Universidad Católica de Chile; Chile. Universidad Católica de Chile; Chile
Fil: Padilla, Nelson David. Universidad Católica de Chile; Chile. Pontificia Universidad Católica de Chile; Chile. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomía Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomía Teórica y Experimental; Argentina
Fil: Helly, J.C.. University of Durham; Reino Unido
Fil: Lacey, C.G.. University of Durham; Reino Unido
Fil: Baugh, C.M.. University of Durham; Reino Unido
Fil: Lagos, C.D.P.. University of Western Australia; Australia
Materia
DARK MATTER
GALAXIES: EVOLUTION
GALAXIES: FORMATION
GALAXIES: HALOES
METHODS: NUMERICAL
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/202962
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/202962
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Halo merger tree comparison: Impact on galaxy formation modelsGómez, Jonathan S.Padilla, Nelson DavidHelly, J.C.Lacey, C.G.Baugh, C.M.Lagos, C.D.P.DARK MATTERGALAXIES: EVOLUTIONGALAXIES: FORMATIONGALAXIES: HALOESMETHODS: NUMERICALhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We examine the effect of using different halo finders and merger tree building algorithms on galaxy properties predicted using the galform semi-analytical model run on a high resolution, large volume dark matter simulation. The halo finders/tree builders hbt, rockstar, subfind, and VELOCI raptor differ in their definitions of halo mass, on whether only spatial or phase-space information is used, and in how they distinguish satellite and main haloes; all of these features have some impact on the model galaxies, even after the trees are post-processed and homogenized by galform. The stellar mass function is insensitive to the halo and merger tree finder adopted. However, we find that the number of central and satellite galaxies in galform does depend slightly on the halo finder/tree builder. The number of galaxies without resolved subhaloes depends strongly on the tree builder, with VELOCIraptor, a phase-space finder, showing the largest population of such galaxies. The distributions of stellar masses, cold and hot gas masses, and star formation rates agree well between different halo finders/tree builders. However, because VELOCIraptor has more early progenitor haloes, with these trees galform produces slightly higher star formation rate densities at high redshift, smaller galaxy sizes, and larger stellar masses for the spheroid component. Since in all cases these differences are small we conclude that, when all of the trees are processed so that the main progenitor mass increases monotonically, the predicted galform galaxy populations are stable and consistent for these four halo finders/tree builders.Fil: Gómez, Jonathan S.. Universidad Autónoma de Madrid; España. Pontificia Universidad Católica de Chile; Chile. Universidad Católica de Chile; ChileFil: Padilla, Nelson David. Universidad Católica de Chile; Chile. Pontificia Universidad Católica de Chile; Chile. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomía Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomía Teórica y Experimental; ArgentinaFil: Helly, J.C.. University of Durham; Reino UnidoFil: Lacey, C.G.. University of Durham; Reino UnidoFil: Baugh, C.M.. University of Durham; Reino UnidoFil: Lagos, C.D.P.. University of Western Australia; AustraliaOxford University Press2022-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/202962Gómez, Jonathan S.; Padilla, Nelson David; Helly, J.C.; Lacey, C.G.; Baugh, C.M.; et al.; Halo merger tree comparison: Impact on galaxy formation models; Oxford University Press; Monthly Notices of the Royal Astronomical Society; 510; 4; 3-2022; 5500-55190035-8711CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stab3661info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article-abstract/510/4/5500/6464107?redirectedFrom=fulltextinfo:eu-repo/semantics/altIdentifier/arxiv/https://arxiv.org/abs/2106.12664info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-10T13:13:28Zoai:ri.conicet.gov.ar:11336/202962instacron: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:34982025-09-10 13:13:28.622CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Halo merger tree comparison: Impact on galaxy formation models
title Halo merger tree comparison: Impact on galaxy formation models
spellingShingle Halo merger tree comparison: Impact on galaxy formation models
Gómez, Jonathan S.
DARK MATTER
GALAXIES: EVOLUTION
GALAXIES: FORMATION
GALAXIES: HALOES
METHODS: NUMERICAL
title_short Halo merger tree comparison: Impact on galaxy formation models
title_full Halo merger tree comparison: Impact on galaxy formation models
title_fullStr Halo merger tree comparison: Impact on galaxy formation models
title_full_unstemmed Halo merger tree comparison: Impact on galaxy formation models
title_sort Halo merger tree comparison: Impact on galaxy formation models
dc.creator.none.fl_str_mv Gómez, Jonathan S.
Padilla, Nelson David
Helly, J.C.
Lacey, C.G.
Baugh, C.M.
Lagos, C.D.P.
author Gómez, Jonathan S.
author_facet Gómez, Jonathan S.
Padilla, Nelson David
Helly, J.C.
Lacey, C.G.
Baugh, C.M.
Lagos, C.D.P.
author_role author
author2 Padilla, Nelson David
Helly, J.C.
Lacey, C.G.
Baugh, C.M.
Lagos, C.D.P.
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv DARK MATTER
GALAXIES: EVOLUTION
GALAXIES: FORMATION
GALAXIES: HALOES
METHODS: NUMERICAL
topic DARK MATTER
GALAXIES: EVOLUTION
GALAXIES: FORMATION
GALAXIES: HALOES
METHODS: NUMERICAL
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 examine the effect of using different halo finders and merger tree building algorithms on galaxy properties predicted using the galform semi-analytical model run on a high resolution, large volume dark matter simulation. The halo finders/tree builders hbt, rockstar, subfind, and VELOCI raptor differ in their definitions of halo mass, on whether only spatial or phase-space information is used, and in how they distinguish satellite and main haloes; all of these features have some impact on the model galaxies, even after the trees are post-processed and homogenized by galform. The stellar mass function is insensitive to the halo and merger tree finder adopted. However, we find that the number of central and satellite galaxies in galform does depend slightly on the halo finder/tree builder. The number of galaxies without resolved subhaloes depends strongly on the tree builder, with VELOCIraptor, a phase-space finder, showing the largest population of such galaxies. The distributions of stellar masses, cold and hot gas masses, and star formation rates agree well between different halo finders/tree builders. However, because VELOCIraptor has more early progenitor haloes, with these trees galform produces slightly higher star formation rate densities at high redshift, smaller galaxy sizes, and larger stellar masses for the spheroid component. Since in all cases these differences are small we conclude that, when all of the trees are processed so that the main progenitor mass increases monotonically, the predicted galform galaxy populations are stable and consistent for these four halo finders/tree builders.
Fil: Gómez, Jonathan S.. Universidad Autónoma de Madrid; España. Pontificia Universidad Católica de Chile; Chile. Universidad Católica de Chile; Chile
Fil: Padilla, Nelson David. Universidad Católica de Chile; Chile. Pontificia Universidad Católica de Chile; Chile. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomía Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomía Teórica y Experimental; Argentina
Fil: Helly, J.C.. University of Durham; Reino Unido
Fil: Lacey, C.G.. University of Durham; Reino Unido
Fil: Baugh, C.M.. University of Durham; Reino Unido
Fil: Lagos, C.D.P.. University of Western Australia; Australia
description We examine the effect of using different halo finders and merger tree building algorithms on galaxy properties predicted using the galform semi-analytical model run on a high resolution, large volume dark matter simulation. The halo finders/tree builders hbt, rockstar, subfind, and VELOCI raptor differ in their definitions of halo mass, on whether only spatial or phase-space information is used, and in how they distinguish satellite and main haloes; all of these features have some impact on the model galaxies, even after the trees are post-processed and homogenized by galform. The stellar mass function is insensitive to the halo and merger tree finder adopted. However, we find that the number of central and satellite galaxies in galform does depend slightly on the halo finder/tree builder. The number of galaxies without resolved subhaloes depends strongly on the tree builder, with VELOCIraptor, a phase-space finder, showing the largest population of such galaxies. The distributions of stellar masses, cold and hot gas masses, and star formation rates agree well between different halo finders/tree builders. However, because VELOCIraptor has more early progenitor haloes, with these trees galform produces slightly higher star formation rate densities at high redshift, smaller galaxy sizes, and larger stellar masses for the spheroid component. Since in all cases these differences are small we conclude that, when all of the trees are processed so that the main progenitor mass increases monotonically, the predicted galform galaxy populations are stable and consistent for these four halo finders/tree builders.
publishDate 2022
dc.date.none.fl_str_mv 2022-03
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/11336/202962
Gómez, Jonathan S.; Padilla, Nelson David; Helly, J.C.; Lacey, C.G.; Baugh, C.M.; et al.; Halo merger tree comparison: Impact on galaxy formation models; Oxford University Press; Monthly Notices of the Royal Astronomical Society; 510; 4; 3-2022; 5500-5519
0035-8711
CONICET Digital
CONICET
url http://hdl.handle.net/11336/202962
identifier_str_mv Gómez, Jonathan S.; Padilla, Nelson David; Helly, J.C.; Lacey, C.G.; Baugh, C.M.; et al.; Halo merger tree comparison: Impact on galaxy formation models; Oxford University Press; Monthly Notices of the Royal Astronomical Society; 510; 4; 3-2022; 5500-5519
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/stab3661
info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article-abstract/510/4/5500/6464107?redirectedFrom=fulltext
info:eu-repo/semantics/altIdentifier/arxiv/https://arxiv.org/abs/2106.12664
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/2.5/ar/
dc.format.none.fl_str_mv 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 12.993085

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