Baryon effects on void statistics in the EAGLE simulation

Autores
Paillas, Enrique; Lagos, Claudia D. P.; Padilla, Nelson; Tissera, Patricia Beatriz; Helly, John; Schaller, Matthieu
Año de publicación
2017
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Cosmic voids are promising tools for cosmological tests due to their sensitivity to dark energy, modified gravity and alternative cosmological scenarios. Most previous studies in the literature of void properties use cosmological N-body simulations of dark matter (DM) particles that ignore the potential effect of baryonic physics. Using a spherical underdensity finder, we analyse voids using the mass field and subhalo tracers in the Evolution and Assembly of Galaxies and their Environment (EAGLE) simulations, which follow the evolution of galaxies in a Λ cold dark matter universe with state-of-the-art subgrid models for baryonic processes in a (100 cMpc)3 volume. We study the effect of baryons on void statistics by comparing results with DM-only simulations that use the same initial conditions as EAGLE. When identifying voids in the mass field, we find that a DM-only simulation produces 24 per cent more voids than a hydrodynamical one due to the action of galaxy feedback polluting void regions with hot gas, specially for small voids with rvoid ≤ 10 Mpc. We find that the way in which galaxy tracers are selected has a strong impact on the inferred void properties. Voids identified using galaxies selected by their stellar mass are larger and have cuspier density profiles than those identified by galaxies selected by their total mass. Overall, baryons have minimal effects on void statistics, as void properties are well captured by DM-only simulations, but it is important to account for how galaxies populate DM haloes to estimate the observational effect of different cosmological models on the statistics of voids.
Fil: Paillas, Enrique. Pontificia Universidad Católica de Chile; Chile
Fil: Lagos, Claudia D. P.. International Centre For Radio Astronomy Research; Australia
Fil: Padilla, Nelson. Pontificia Universidad Católica de Chile; Chile
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: Helly, John. University Of Durham; Reino Unido
Fil: Schaller, Matthieu. University Of Durham; Reino Unido
Materia
cosmology
galaxy formation
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:11336/24182
Acceder
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spelling Baryon effects on void statistics in the EAGLE simulationPaillas, EnriqueLagos, Claudia D. P.Padilla, NelsonTissera, Patricia BeatrizHelly, JohnSchaller, Matthieucosmologygalaxy formationhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Cosmic voids are promising tools for cosmological tests due to their sensitivity to dark energy, modified gravity and alternative cosmological scenarios. Most previous studies in the literature of void properties use cosmological N-body simulations of dark matter (DM) particles that ignore the potential effect of baryonic physics. Using a spherical underdensity finder, we analyse voids using the mass field and subhalo tracers in the Evolution and Assembly of Galaxies and their Environment (EAGLE) simulations, which follow the evolution of galaxies in a Λ cold dark matter universe with state-of-the-art subgrid models for baryonic processes in a (100 cMpc)3 volume. We study the effect of baryons on void statistics by comparing results with DM-only simulations that use the same initial conditions as EAGLE. When identifying voids in the mass field, we find that a DM-only simulation produces 24 per cent more voids than a hydrodynamical one due to the action of galaxy feedback polluting void regions with hot gas, specially for small voids with rvoid ≤ 10 Mpc. We find that the way in which galaxy tracers are selected has a strong impact on the inferred void properties. Voids identified using galaxies selected by their stellar mass are larger and have cuspier density profiles than those identified by galaxies selected by their total mass. Overall, baryons have minimal effects on void statistics, as void properties are well captured by DM-only simulations, but it is important to account for how galaxies populate DM haloes to estimate the observational effect of different cosmological models on the statistics of voids.Fil: Paillas, Enrique. Pontificia Universidad Católica de Chile; ChileFil: Lagos, Claudia D. P.. International Centre For Radio Astronomy Research; AustraliaFil: Padilla, Nelson. Pontificia Universidad Católica de Chile; ChileFil: 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: Helly, John. University Of Durham; Reino UnidoFil: Schaller, Matthieu. University Of Durham; Reino UnidoOxford University Press2017-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/24182Paillas, Enrique; Lagos, Claudia D. P.; Padilla, Nelson; Tissera, Patricia Beatriz; Helly, John; et al.; Baryon effects on void statistics in the EAGLE simulation; Oxford University Press; Monthly Notices of the Royal Astronomical Society; 470; 4; 10-2017; 4434-44520035-8711CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stx1514info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article-abstract/470/4/4434/3869633/Baryon-effects-on-void-statistics-in-the-EAGLE?redirectedFrom=fulltextinfo:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1609.00101info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:08:13Zoai:ri.conicet.gov.ar:11336/24182instacron: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 10:08:13.725CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Baryon effects on void statistics in the EAGLE simulation
title Baryon effects on void statistics in the EAGLE simulation
spellingShingle Baryon effects on void statistics in the EAGLE simulation
Paillas, Enrique
cosmology
galaxy formation
title_short Baryon effects on void statistics in the EAGLE simulation
title_full Baryon effects on void statistics in the EAGLE simulation
title_fullStr Baryon effects on void statistics in the EAGLE simulation
title_full_unstemmed Baryon effects on void statistics in the EAGLE simulation
title_sort Baryon effects on void statistics in the EAGLE simulation
dc.creator.none.fl_str_mv Paillas, Enrique
Lagos, Claudia D. P.
Padilla, Nelson
Tissera, Patricia Beatriz
Helly, John
Schaller, Matthieu
author Paillas, Enrique
author_facet Paillas, Enrique
Lagos, Claudia D. P.
Padilla, Nelson
Tissera, Patricia Beatriz
Helly, John
Schaller, Matthieu
author_role author
author2 Lagos, Claudia D. P.
Padilla, Nelson
Tissera, Patricia Beatriz
Helly, John
Schaller, Matthieu
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv cosmology
galaxy formation
topic cosmology
galaxy formation
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Cosmic voids are promising tools for cosmological tests due to their sensitivity to dark energy, modified gravity and alternative cosmological scenarios. Most previous studies in the literature of void properties use cosmological N-body simulations of dark matter (DM) particles that ignore the potential effect of baryonic physics. Using a spherical underdensity finder, we analyse voids using the mass field and subhalo tracers in the Evolution and Assembly of Galaxies and their Environment (EAGLE) simulations, which follow the evolution of galaxies in a Λ cold dark matter universe with state-of-the-art subgrid models for baryonic processes in a (100 cMpc)3 volume. We study the effect of baryons on void statistics by comparing results with DM-only simulations that use the same initial conditions as EAGLE. When identifying voids in the mass field, we find that a DM-only simulation produces 24 per cent more voids than a hydrodynamical one due to the action of galaxy feedback polluting void regions with hot gas, specially for small voids with rvoid ≤ 10 Mpc. We find that the way in which galaxy tracers are selected has a strong impact on the inferred void properties. Voids identified using galaxies selected by their stellar mass are larger and have cuspier density profiles than those identified by galaxies selected by their total mass. Overall, baryons have minimal effects on void statistics, as void properties are well captured by DM-only simulations, but it is important to account for how galaxies populate DM haloes to estimate the observational effect of different cosmological models on the statistics of voids.
Fil: Paillas, Enrique. Pontificia Universidad Católica de Chile; Chile
Fil: Lagos, Claudia D. P.. International Centre For Radio Astronomy Research; Australia
Fil: Padilla, Nelson. Pontificia Universidad Católica de Chile; Chile
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: Helly, John. University Of Durham; Reino Unido
Fil: Schaller, Matthieu. University Of Durham; Reino Unido
description Cosmic voids are promising tools for cosmological tests due to their sensitivity to dark energy, modified gravity and alternative cosmological scenarios. Most previous studies in the literature of void properties use cosmological N-body simulations of dark matter (DM) particles that ignore the potential effect of baryonic physics. Using a spherical underdensity finder, we analyse voids using the mass field and subhalo tracers in the Evolution and Assembly of Galaxies and their Environment (EAGLE) simulations, which follow the evolution of galaxies in a Λ cold dark matter universe with state-of-the-art subgrid models for baryonic processes in a (100 cMpc)3 volume. We study the effect of baryons on void statistics by comparing results with DM-only simulations that use the same initial conditions as EAGLE. When identifying voids in the mass field, we find that a DM-only simulation produces 24 per cent more voids than a hydrodynamical one due to the action of galaxy feedback polluting void regions with hot gas, specially for small voids with rvoid ≤ 10 Mpc. We find that the way in which galaxy tracers are selected has a strong impact on the inferred void properties. Voids identified using galaxies selected by their stellar mass are larger and have cuspier density profiles than those identified by galaxies selected by their total mass. Overall, baryons have minimal effects on void statistics, as void properties are well captured by DM-only simulations, but it is important to account for how galaxies populate DM haloes to estimate the observational effect of different cosmological models on the statistics of voids.
publishDate 2017
dc.date.none.fl_str_mv 2017-10
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/11336/24182
Paillas, Enrique; Lagos, Claudia D. P.; Padilla, Nelson; Tissera, Patricia Beatriz; Helly, John; et al.; Baryon effects on void statistics in the EAGLE simulation; Oxford University Press; Monthly Notices of the Royal Astronomical Society; 470; 4; 10-2017; 4434-4452
0035-8711
CONICET Digital
CONICET
url http://hdl.handle.net/11336/24182
identifier_str_mv Paillas, Enrique; Lagos, Claudia D. P.; Padilla, Nelson; Tissera, Patricia Beatriz; Helly, John; et al.; Baryon effects on void statistics in the EAGLE simulation; Oxford University Press; Monthly Notices of the Royal Astronomical Society; 470; 4; 10-2017; 4434-4452
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/stx1514
info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article-abstract/470/4/4434/3869633/Baryon-effects-on-void-statistics-in-the-EAGLE?redirectedFrom=fulltext
info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1609.00101
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 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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