Effects of superstructure environment on galaxy groups

Autores
Luparello, Heliana Estefanía; Lares Harbin Latorre, Marcelo; Yaryura, Claudia Yamila; Paz, Dante Javier; Padilla, Nelson David; Garcia Lambas, Diego Rodolfo
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We analyse properties of galaxy groups and their dependence on the large-scale environment as defined by superstructures. We find that group–galaxy cross-correlations depend only on group properties regardless the groups reside in superstructures. This indicates that the total galaxy density profile around groups is independent of the global environment. At a given global luminosity, a proxy to group total mass, groups have a larger stellar mass content by a factor of 1.3, a relative excess independent of the group luminosity. Groups in superstructures have 40 per cent higher velocity dispersions and systematically larger minimal enclosing radii. We also find that the stellar population of galaxies in groups in superstructures is systematically older as inferred from the galaxy spectra Dn4000 parameter. Although the galaxy number density profile of groups is independent of environment, the star formation rate and stellar mass profile of the groups residing in superstructures differ from groups elsewhere. For groups residing in superstructures, the combination of a larger stellar mass content and star formation rate produces a larger time-scale for star formation regardless the distance to the group centre. Our results provide evidence that groups in superstructures formed earlier than elsewhere, as expected in the assembly bias scenario.
Fil: Luparello, Heliana Estefanía. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomia Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomia Teórica y Experimental; Argentina
Fil: Lares Harbin Latorre, Marcelo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomia Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomia Teórica y Experimental; Argentina
Fil: Yaryura, Claudia Yamila. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomia Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomia Teórica y Experimental; Argentina
Fil: Paz, Dante Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomia Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomia Teórica y Experimental; Argentina
Fil: Padilla, Nelson David. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomia Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomia Teórica y Experimental; Argentina
Fil: Garcia Lambas, Diego Rodolfo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomia Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomia Teórica y Experimental; Argentina
Materia
METHODS
ANALYSIS
LARGE-SCALE
STRUCTURE
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:11336/25515
Acceder
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repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Effects of superstructure environment on galaxy groupsLuparello, Heliana EstefaníaLares Harbin Latorre, MarceloYaryura, Claudia YamilaPaz, Dante JavierPadilla, Nelson DavidGarcia Lambas, Diego RodolfoMETHODSANALYSISLARGE-SCALESTRUCTUREhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We analyse properties of galaxy groups and their dependence on the large-scale environment as defined by superstructures. We find that group–galaxy cross-correlations depend only on group properties regardless the groups reside in superstructures. This indicates that the total galaxy density profile around groups is independent of the global environment. At a given global luminosity, a proxy to group total mass, groups have a larger stellar mass content by a factor of 1.3, a relative excess independent of the group luminosity. Groups in superstructures have 40 per cent higher velocity dispersions and systematically larger minimal enclosing radii. We also find that the stellar population of galaxies in groups in superstructures is systematically older as inferred from the galaxy spectra Dn4000 parameter. Although the galaxy number density profile of groups is independent of environment, the star formation rate and stellar mass profile of the groups residing in superstructures differ from groups elsewhere. For groups residing in superstructures, the combination of a larger stellar mass content and star formation rate produces a larger time-scale for star formation regardless the distance to the group centre. Our results provide evidence that groups in superstructures formed earlier than elsewhere, as expected in the assembly bias scenario.Fil: Luparello, Heliana Estefanía. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomia Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomia Teórica y Experimental; ArgentinaFil: Lares Harbin Latorre, Marcelo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomia Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomia Teórica y Experimental; ArgentinaFil: Yaryura, Claudia Yamila. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomia Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomia Teórica y Experimental; ArgentinaFil: Paz, Dante Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomia Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomia Teórica y Experimental; ArgentinaFil: Padilla, Nelson David. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomia Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomia Teórica y Experimental; ArgentinaFil: Garcia Lambas, Diego Rodolfo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomia Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomia Teórica y Experimental; ArgentinaOxford University Press2013-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/25515Luparello, Heliana Estefanía; Lares Harbin Latorre, Marcelo; Yaryura, Claudia Yamila; Paz, Dante Javier; Padilla, Nelson David; et al.; Effects of superstructure environment on galaxy groups; Oxford University Press; Monthly Notices of the Royal Astronomical Society; 432; 2; 4-2013; 1367-13740035-8711CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stt556info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article-lookup/doi/10.1093/mnras/stt556info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1304.0456info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:14:56Zoai:ri.conicet.gov.ar:11336/25515instacron: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 10:14:56.48CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Effects of superstructure environment on galaxy groups
title Effects of superstructure environment on galaxy groups
spellingShingle Effects of superstructure environment on galaxy groups
Luparello, Heliana Estefanía
METHODS
ANALYSIS
LARGE-SCALE
STRUCTURE
title_short Effects of superstructure environment on galaxy groups
title_full Effects of superstructure environment on galaxy groups
title_fullStr Effects of superstructure environment on galaxy groups
title_full_unstemmed Effects of superstructure environment on galaxy groups
title_sort Effects of superstructure environment on galaxy groups
dc.creator.none.fl_str_mv Luparello, Heliana Estefanía
Lares Harbin Latorre, Marcelo
Yaryura, Claudia Yamila
Paz, Dante Javier
Padilla, Nelson David
Garcia Lambas, Diego Rodolfo
author Luparello, Heliana Estefanía
author_facet Luparello, Heliana Estefanía
Lares Harbin Latorre, Marcelo
Yaryura, Claudia Yamila
Paz, Dante Javier
Padilla, Nelson David
Garcia Lambas, Diego Rodolfo
author_role author
author2 Lares Harbin Latorre, Marcelo
Yaryura, Claudia Yamila
Paz, Dante Javier
Padilla, Nelson David
Garcia Lambas, Diego Rodolfo
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv METHODS
ANALYSIS
LARGE-SCALE
STRUCTURE
topic METHODS
ANALYSIS
LARGE-SCALE
STRUCTURE
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 analyse properties of galaxy groups and their dependence on the large-scale environment as defined by superstructures. We find that group–galaxy cross-correlations depend only on group properties regardless the groups reside in superstructures. This indicates that the total galaxy density profile around groups is independent of the global environment. At a given global luminosity, a proxy to group total mass, groups have a larger stellar mass content by a factor of 1.3, a relative excess independent of the group luminosity. Groups in superstructures have 40 per cent higher velocity dispersions and systematically larger minimal enclosing radii. We also find that the stellar population of galaxies in groups in superstructures is systematically older as inferred from the galaxy spectra Dn4000 parameter. Although the galaxy number density profile of groups is independent of environment, the star formation rate and stellar mass profile of the groups residing in superstructures differ from groups elsewhere. For groups residing in superstructures, the combination of a larger stellar mass content and star formation rate produces a larger time-scale for star formation regardless the distance to the group centre. Our results provide evidence that groups in superstructures formed earlier than elsewhere, as expected in the assembly bias scenario.
Fil: Luparello, Heliana Estefanía. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomia Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomia Teórica y Experimental; Argentina
Fil: Lares Harbin Latorre, Marcelo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomia Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomia Teórica y Experimental; Argentina
Fil: Yaryura, Claudia Yamila. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomia Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomia Teórica y Experimental; Argentina
Fil: Paz, Dante Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomia Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomia Teórica y Experimental; Argentina
Fil: Padilla, Nelson David. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomia Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomia Teórica y Experimental; Argentina
Fil: Garcia Lambas, Diego Rodolfo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomia Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomia Teórica y Experimental; Argentina
description We analyse properties of galaxy groups and their dependence on the large-scale environment as defined by superstructures. We find that group–galaxy cross-correlations depend only on group properties regardless the groups reside in superstructures. This indicates that the total galaxy density profile around groups is independent of the global environment. At a given global luminosity, a proxy to group total mass, groups have a larger stellar mass content by a factor of 1.3, a relative excess independent of the group luminosity. Groups in superstructures have 40 per cent higher velocity dispersions and systematically larger minimal enclosing radii. We also find that the stellar population of galaxies in groups in superstructures is systematically older as inferred from the galaxy spectra Dn4000 parameter. Although the galaxy number density profile of groups is independent of environment, the star formation rate and stellar mass profile of the groups residing in superstructures differ from groups elsewhere. For groups residing in superstructures, the combination of a larger stellar mass content and star formation rate produces a larger time-scale for star formation regardless the distance to the group centre. Our results provide evidence that groups in superstructures formed earlier than elsewhere, as expected in the assembly bias scenario.
publishDate 2013
dc.date.none.fl_str_mv 2013-04
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/11336/25515
Luparello, Heliana Estefanía; Lares Harbin Latorre, Marcelo; Yaryura, Claudia Yamila; Paz, Dante Javier; Padilla, Nelson David; et al.; Effects of superstructure environment on galaxy groups; Oxford University Press; Monthly Notices of the Royal Astronomical Society; 432; 2; 4-2013; 1367-1374
0035-8711
CONICET Digital
CONICET
url http://hdl.handle.net/11336/25515
identifier_str_mv Luparello, Heliana Estefanía; Lares Harbin Latorre, Marcelo; Yaryura, Claudia Yamila; Paz, Dante Javier; Padilla, Nelson David; et al.; Effects of superstructure environment on galaxy groups; Oxford University Press; Monthly Notices of the Royal Astronomical Society; 432; 2; 4-2013; 1367-1374
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/stt556
info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article-lookup/doi/10.1093/mnras/stt556
info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1304.0456
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
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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