Encounters between spherical galaxies – II. Systems without a dark halo

[EN]We perform N-body simulations of encounters between spherical systems surrounded by a spherical halo. Following a preceding paper with a similar aim, the initial systems include a spherical Jaffe model for the luminous matter and a Hernquist model for the halo. The merger remnants from this samp...

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Detalles Bibliográficos
Autores: González-García, A. César, van Albada, T. S.
Tipo de recurso: artículo
Fecha de publicación:2005
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/75080
Acceso en línea:http://hdl.handle.net/10261/75080
Access Level:acceso abierto
Palabra clave:Methods: N-body simulations
Galaxies: interactions
Galaxies: kinematics and dynamics
galaxies: structure-elliptical
Incipit
Instituto de Ciencias del Patrimonio
Institute of Heritage Sciences
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repository_id_str
spelling Encounters between spherical galaxies – II. Systems without a dark haloGonzález-García, A. Césarvan Albada, T. S.Methods: N-body simulationsGalaxies: interactionsGalaxies: kinematics and dynamicsgalaxies: structure-ellipticalIncipitInstituto de Ciencias del PatrimonioInstitute of Heritage Sciences[EN]We perform N-body simulations of encounters between spherical systems surrounded by a spherical halo. Following a preceding paper with a similar aim, the initial systems include a spherical Jaffe model for the luminous matter and a Hernquist model for the halo. The merger remnants from this sample are mainly slowly rotating, prolate spheroids with a radially anisotropic velocity distribution. The results are compared with real-life ellipticals and with the models without halo in Paper I. We argue that elliptical galaxies with evidence of dark matter could be formed in the field via a merger of spheroids surrounded by a dark matter halo, while ellipticals with no evidence of dark matter might be formed via a merger of two spheroids in a cluster.Peer reviewedRoyal Astronomical Society201320132005info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/75080reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://mnras.oxfordjournals.org/content/361/3/1043.full.pdfinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/750802026-05-22T06:33:51Z
dc.title.none.fl_str_mv Encounters between spherical galaxies – II. Systems without a dark halo
title Encounters between spherical galaxies – II. Systems without a dark halo
spellingShingle Encounters between spherical galaxies – II. Systems without a dark halo
González-García, A. César
Methods: N-body simulations
Galaxies: interactions
Galaxies: kinematics and dynamics
galaxies: structure-elliptical
Incipit
Instituto de Ciencias del Patrimonio
Institute of Heritage Sciences
title_short Encounters between spherical galaxies – II. Systems without a dark halo
title_full Encounters between spherical galaxies – II. Systems without a dark halo
title_fullStr Encounters between spherical galaxies – II. Systems without a dark halo
title_full_unstemmed Encounters between spherical galaxies – II. Systems without a dark halo
title_sort Encounters between spherical galaxies – II. Systems without a dark halo
dc.creator.none.fl_str_mv González-García, A. César
van Albada, T. S.
author González-García, A. César
author_facet González-García, A. César
van Albada, T. S.
author_role author
author2 van Albada, T. S.
author2_role author
dc.subject.none.fl_str_mv Methods: N-body simulations
Galaxies: interactions
Galaxies: kinematics and dynamics
galaxies: structure-elliptical
Incipit
Instituto de Ciencias del Patrimonio
Institute of Heritage Sciences
topic Methods: N-body simulations
Galaxies: interactions
Galaxies: kinematics and dynamics
galaxies: structure-elliptical
Incipit
Instituto de Ciencias del Patrimonio
Institute of Heritage Sciences
description [EN]We perform N-body simulations of encounters between spherical systems surrounded by a spherical halo. Following a preceding paper with a similar aim, the initial systems include a spherical Jaffe model for the luminous matter and a Hernquist model for the halo. The merger remnants from this sample are mainly slowly rotating, prolate spheroids with a radially anisotropic velocity distribution. The results are compared with real-life ellipticals and with the models without halo in Paper I. We argue that elliptical galaxies with evidence of dark matter could be formed in the field via a merger of spheroids surrounded by a dark matter halo, while ellipticals with no evidence of dark matter might be formed via a merger of two spheroids in a cluster.
publishDate 2005
dc.date.none.fl_str_mv 2005
2013
2013
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/75080
url http://hdl.handle.net/10261/75080
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://mnras.oxfordjournals.org/content/361/3/1043.full.pdf
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Royal Astronomical Society
publisher.none.fl_str_mv Royal Astronomical Society
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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