Cool core clusters from cosmological simulations

Autores
Rasia, Elena; Borgani, S.; Murante, Giuseppe; Planelles, Susana; Beck, Alexander; Biffi, Veronica; Ragone Figueroa, Cinthia Judith; Granato, Gian Luigi; Steinborn, Lisa; Dolag, Klaus
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We present results obtained from a set of cosmological hydrodynamic simulations of galaxy clusters, aimed at comparing predictions with observational data on the diversity between cool-core (CC) and non-cool-core (NCC) clusters. Our simulations include the effects of stellar and active galactic nucleus (AGN) feedback and are based on an improved version of the smoothed particle hydrodynamics code GADGET-3, which ameliorates gas mixing and better captures gas-dynamical instabilities by including a suitable artificial thermal diffusion. In this Letter, we focus our analysis on the entropy profiles, the primary diagnostic we used to classify the degree of cool-coreness of clusters, and the iron profiles. In keeping with observations, our simulated clusters display a variety of behaviors in entropy profiles: they range from steadily decreasing profiles at small radii, characteristic of CC systems, to nearly flat core isentropic profiles, characteristic of NCC systems. Using observational criteria to distinguish between the two classes of objects, we find that they occur in similar proportions in both simulations and observations. Furthermore, we also find that simulated CC clusters have profiles of iron abundance that are steeper than those of NCC clusters, which is also in agreement with observational results. We show that the capability of our simulations to generate a realistic CC structure in the cluster population is due to AGN feedback and artificial thermal diffusion: their combined action allows us to naturally distribute the energy extracted from super-massive black holes and to compensate for the radiative losses of low-entropy gas with short cooling time residing in the cluster core.
Fil: Rasia, Elena. Istituto Nazionale Di Astrofisica Trieste; Italia
Fil: Borgani, S.. Istituto Nazionale Di Astrofisica Trieste; Italia. Università degli Studi di Trieste; Italia
Fil: Murante, Giuseppe. Istituto Nazionale Di Astrofisica Trieste; Italia
Fil: Planelles, Susana. Istituto Nazionale Di Astrofisica Trieste; Italia. Università degli Studi di Trieste; Italia
Fil: Beck, Alexander. Universitats-sternwarte Munchen; Alemania
Fil: Biffi, Veronica. Istituto Nazionale Di Astrofisica Trieste; Italia. Università degli Studi di Trieste; Italia
Fil: Ragone Figueroa, Cinthia Judith. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; Argentina. 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: Granato, Gian Luigi. Istituto Nazionale Di Astrofisica Trieste; Italia
Fil: Steinborn, Lisa. Universitats-sternwarte Munchen; Alemania
Fil: Dolag, Klaus. Gobierno de la República Federal de Alemania. Max Planck Institut für Astrophysik; Alemania
Materia
GALAXIES: CLUSTERS: GENERAL
GALAXIES: CLUSTERS: INTRACLUSTER MEDIUM
METHODS: NUMERICAL
X-RAYS: GALAXIES: CLUSTERS
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:11336/184012
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/184012
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Cool core clusters from cosmological simulationsRasia, ElenaBorgani, S.Murante, GiuseppePlanelles, SusanaBeck, AlexanderBiffi, VeronicaRagone Figueroa, Cinthia JudithGranato, Gian LuigiSteinborn, LisaDolag, KlausGALAXIES: CLUSTERS: GENERALGALAXIES: CLUSTERS: INTRACLUSTER MEDIUMMETHODS: NUMERICALX-RAYS: GALAXIES: CLUSTERShttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We present results obtained from a set of cosmological hydrodynamic simulations of galaxy clusters, aimed at comparing predictions with observational data on the diversity between cool-core (CC) and non-cool-core (NCC) clusters. Our simulations include the effects of stellar and active galactic nucleus (AGN) feedback and are based on an improved version of the smoothed particle hydrodynamics code GADGET-3, which ameliorates gas mixing and better captures gas-dynamical instabilities by including a suitable artificial thermal diffusion. In this Letter, we focus our analysis on the entropy profiles, the primary diagnostic we used to classify the degree of cool-coreness of clusters, and the iron profiles. In keeping with observations, our simulated clusters display a variety of behaviors in entropy profiles: they range from steadily decreasing profiles at small radii, characteristic of CC systems, to nearly flat core isentropic profiles, characteristic of NCC systems. Using observational criteria to distinguish between the two classes of objects, we find that they occur in similar proportions in both simulations and observations. Furthermore, we also find that simulated CC clusters have profiles of iron abundance that are steeper than those of NCC clusters, which is also in agreement with observational results. We show that the capability of our simulations to generate a realistic CC structure in the cluster population is due to AGN feedback and artificial thermal diffusion: their combined action allows us to naturally distribute the energy extracted from super-massive black holes and to compensate for the radiative losses of low-entropy gas with short cooling time residing in the cluster core.Fil: Rasia, Elena. Istituto Nazionale Di Astrofisica Trieste; ItaliaFil: Borgani, S.. Istituto Nazionale Di Astrofisica Trieste; Italia. Università degli Studi di Trieste; ItaliaFil: Murante, Giuseppe. Istituto Nazionale Di Astrofisica Trieste; ItaliaFil: Planelles, Susana. Istituto Nazionale Di Astrofisica Trieste; Italia. Università degli Studi di Trieste; ItaliaFil: Beck, Alexander. Universitats-sternwarte Munchen; AlemaniaFil: Biffi, Veronica. Istituto Nazionale Di Astrofisica Trieste; Italia. Università degli Studi di Trieste; ItaliaFil: Ragone Figueroa, Cinthia Judith. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; Argentina. 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: Granato, Gian Luigi. Istituto Nazionale Di Astrofisica Trieste; ItaliaFil: Steinborn, Lisa. Universitats-sternwarte Munchen; AlemaniaFil: Dolag, Klaus. Gobierno de la República Federal de Alemania. Max Planck Institut für Astrophysik; AlemaniaInstitute of Physics Publishing2015-11-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/184012Rasia, Elena; Borgani, S.; Murante, Giuseppe; Planelles, Susana; Beck, Alexander; et al.; Cool core clusters from cosmological simulations; Institute of Physics Publishing; Astrophysical Journal Letters; 813; 1; 1-11-2015; 1-62041-82130004-637XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://adsabs.harvard.edu/abs/2015ApJ...813L..17Rinfo:eu-repo/semantics/altIdentifier/doi/10.1088/2041-8205/813/1/L17info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:26:31Zoai:ri.conicet.gov.ar:11336/184012instacron: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 10:26:31.566CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Cool core clusters from cosmological simulations
title Cool core clusters from cosmological simulations
spellingShingle Cool core clusters from cosmological simulations
Rasia, Elena
GALAXIES: CLUSTERS: GENERAL
GALAXIES: CLUSTERS: INTRACLUSTER MEDIUM
METHODS: NUMERICAL
X-RAYS: GALAXIES: CLUSTERS
title_short Cool core clusters from cosmological simulations
title_full Cool core clusters from cosmological simulations
title_fullStr Cool core clusters from cosmological simulations
title_full_unstemmed Cool core clusters from cosmological simulations
title_sort Cool core clusters from cosmological simulations
dc.creator.none.fl_str_mv Rasia, Elena
Borgani, S.
Murante, Giuseppe
Planelles, Susana
Beck, Alexander
Biffi, Veronica
Ragone Figueroa, Cinthia Judith
Granato, Gian Luigi
Steinborn, Lisa
Dolag, Klaus
author Rasia, Elena
author_facet Rasia, Elena
Borgani, S.
Murante, Giuseppe
Planelles, Susana
Beck, Alexander
Biffi, Veronica
Ragone Figueroa, Cinthia Judith
Granato, Gian Luigi
Steinborn, Lisa
Dolag, Klaus
author_role author
author2 Borgani, S.
Murante, Giuseppe
Planelles, Susana
Beck, Alexander
Biffi, Veronica
Ragone Figueroa, Cinthia Judith
Granato, Gian Luigi
Steinborn, Lisa
Dolag, Klaus
author2_role author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv GALAXIES: CLUSTERS: GENERAL
GALAXIES: CLUSTERS: INTRACLUSTER MEDIUM
METHODS: NUMERICAL
X-RAYS: GALAXIES: CLUSTERS
topic GALAXIES: CLUSTERS: GENERAL
GALAXIES: CLUSTERS: INTRACLUSTER MEDIUM
METHODS: NUMERICAL
X-RAYS: GALAXIES: CLUSTERS
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 present results obtained from a set of cosmological hydrodynamic simulations of galaxy clusters, aimed at comparing predictions with observational data on the diversity between cool-core (CC) and non-cool-core (NCC) clusters. Our simulations include the effects of stellar and active galactic nucleus (AGN) feedback and are based on an improved version of the smoothed particle hydrodynamics code GADGET-3, which ameliorates gas mixing and better captures gas-dynamical instabilities by including a suitable artificial thermal diffusion. In this Letter, we focus our analysis on the entropy profiles, the primary diagnostic we used to classify the degree of cool-coreness of clusters, and the iron profiles. In keeping with observations, our simulated clusters display a variety of behaviors in entropy profiles: they range from steadily decreasing profiles at small radii, characteristic of CC systems, to nearly flat core isentropic profiles, characteristic of NCC systems. Using observational criteria to distinguish between the two classes of objects, we find that they occur in similar proportions in both simulations and observations. Furthermore, we also find that simulated CC clusters have profiles of iron abundance that are steeper than those of NCC clusters, which is also in agreement with observational results. We show that the capability of our simulations to generate a realistic CC structure in the cluster population is due to AGN feedback and artificial thermal diffusion: their combined action allows us to naturally distribute the energy extracted from super-massive black holes and to compensate for the radiative losses of low-entropy gas with short cooling time residing in the cluster core.
Fil: Rasia, Elena. Istituto Nazionale Di Astrofisica Trieste; Italia
Fil: Borgani, S.. Istituto Nazionale Di Astrofisica Trieste; Italia. Università degli Studi di Trieste; Italia
Fil: Murante, Giuseppe. Istituto Nazionale Di Astrofisica Trieste; Italia
Fil: Planelles, Susana. Istituto Nazionale Di Astrofisica Trieste; Italia. Università degli Studi di Trieste; Italia
Fil: Beck, Alexander. Universitats-sternwarte Munchen; Alemania
Fil: Biffi, Veronica. Istituto Nazionale Di Astrofisica Trieste; Italia. Università degli Studi di Trieste; Italia
Fil: Ragone Figueroa, Cinthia Judith. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba; Argentina. 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: Granato, Gian Luigi. Istituto Nazionale Di Astrofisica Trieste; Italia
Fil: Steinborn, Lisa. Universitats-sternwarte Munchen; Alemania
Fil: Dolag, Klaus. Gobierno de la República Federal de Alemania. Max Planck Institut für Astrophysik; Alemania
description We present results obtained from a set of cosmological hydrodynamic simulations of galaxy clusters, aimed at comparing predictions with observational data on the diversity between cool-core (CC) and non-cool-core (NCC) clusters. Our simulations include the effects of stellar and active galactic nucleus (AGN) feedback and are based on an improved version of the smoothed particle hydrodynamics code GADGET-3, which ameliorates gas mixing and better captures gas-dynamical instabilities by including a suitable artificial thermal diffusion. In this Letter, we focus our analysis on the entropy profiles, the primary diagnostic we used to classify the degree of cool-coreness of clusters, and the iron profiles. In keeping with observations, our simulated clusters display a variety of behaviors in entropy profiles: they range from steadily decreasing profiles at small radii, characteristic of CC systems, to nearly flat core isentropic profiles, characteristic of NCC systems. Using observational criteria to distinguish between the two classes of objects, we find that they occur in similar proportions in both simulations and observations. Furthermore, we also find that simulated CC clusters have profiles of iron abundance that are steeper than those of NCC clusters, which is also in agreement with observational results. We show that the capability of our simulations to generate a realistic CC structure in the cluster population is due to AGN feedback and artificial thermal diffusion: their combined action allows us to naturally distribute the energy extracted from super-massive black holes and to compensate for the radiative losses of low-entropy gas with short cooling time residing in the cluster core.
publishDate 2015
dc.date.none.fl_str_mv 2015-11-01
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/11336/184012
Rasia, Elena; Borgani, S.; Murante, Giuseppe; Planelles, Susana; Beck, Alexander; et al.; Cool core clusters from cosmological simulations; Institute of Physics Publishing; Astrophysical Journal Letters; 813; 1; 1-11-2015; 1-6
2041-8213
0004-637X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/184012
identifier_str_mv Rasia, Elena; Borgani, S.; Murante, Giuseppe; Planelles, Susana; Beck, Alexander; et al.; Cool core clusters from cosmological simulations; Institute of Physics Publishing; Astrophysical Journal Letters; 813; 1; 1-11-2015; 1-6
2041-8213
0004-637X
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://adsabs.harvard.edu/abs/2015ApJ...813L..17R
info:eu-repo/semantics/altIdentifier/doi/10.1088/2041-8205/813/1/L17
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 Institute of Physics Publishing
publisher.none.fl_str_mv Institute of Physics Publishing
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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