Formation and evolution of dwarf early-type galaxies in the Virgo cluster I. Internal kinematics

We present new medium resolution kinematic data for a sample of 21 dwarf early-type galaxies (dEs) mainly in the Virgo cluster, obtained with the WHT and INT telescopes at the Roque de los Muchachos Observatory (La Palma, Spain). These data are used to study the origin of the dwarf elliptical galaxy...

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Detalles Bibliográficos
Autores: Toloba, E., Boselli, A., Cenarro, A. J., Peletier, R. F., Gorgas García, Francisco Javier, Gil De Paz, Armando, Muñoz Mateos, Juan Carlos
Tipo de recurso: artículo
Fecha de publicación:2011
País:España
Institución:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/44881
Acceso en línea:https://hdl.handle.net/20.500.14352/44881
Access Level:acceso abierto
Palabra clave:52
Digital sky survey
Tully-fisher relation
Elliptic galaxies
Stellar populations
Fundamental plane
Rotation curves
Star-formation
Systems
Origin
Photometry
Astrofísica
Astronomía (Física)
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oai_identifier_str oai:docta.ucm.es:20.500.14352/44881
network_acronym_str ES
network_name_str España
repository_id_str
spelling Formation and evolution of dwarf early-type galaxies in the Virgo cluster I. Internal kinematicsToloba, E.Boselli, A.Cenarro, A. J.Peletier, R. F.Gorgas García, Francisco JavierGil De Paz, ArmandoMuñoz Mateos, Juan Carlos52Digital sky surveyTully-fisher relationElliptic galaxiesStellar populationsFundamental planeRotation curvesStar-formationSystemsOriginPhotometryAstrofísicaAstronomía (Física)We present new medium resolution kinematic data for a sample of 21 dwarf early-type galaxies (dEs) mainly in the Virgo cluster, obtained with the WHT and INT telescopes at the Roque de los Muchachos Observatory (La Palma, Spain). These data are used to study the origin of the dwarf elliptical galaxy population inhabiting clusters. We confirm that dEs are not dark matter dominated galaxies, at least not up to the half-light radius. We also find that the observed galaxies in the outer parts of the cluster are mostly rotationally supported systems with disky morphological shapes. Rotationally supported dEs have rotation curves similar to those of star-forming galaxies of similar luminosity and follow the Tully-Fisher relation. This is expected if dE galaxies are the descendants of low-luminosity star-forming systems that have recently entered the cluster environment and lost their gas due to a ram-pressure stripping event, quenching their star formation activity and transforming into quiescent systems, but conserving their angular momentum.EDP ScienciesUniversidad Complutense de Madrid20112011-02-0120112011-02-01journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14352/44881reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/448812026-06-02T12:44:21Z
dc.title.none.fl_str_mv Formation and evolution of dwarf early-type galaxies in the Virgo cluster I. Internal kinematics
title Formation and evolution of dwarf early-type galaxies in the Virgo cluster I. Internal kinematics
spellingShingle Formation and evolution of dwarf early-type galaxies in the Virgo cluster I. Internal kinematics
Toloba, E.
52
Digital sky survey
Tully-fisher relation
Elliptic galaxies
Stellar populations
Fundamental plane
Rotation curves
Star-formation
Systems
Origin
Photometry
Astrofísica
Astronomía (Física)
title_short Formation and evolution of dwarf early-type galaxies in the Virgo cluster I. Internal kinematics
title_full Formation and evolution of dwarf early-type galaxies in the Virgo cluster I. Internal kinematics
title_fullStr Formation and evolution of dwarf early-type galaxies in the Virgo cluster I. Internal kinematics
title_full_unstemmed Formation and evolution of dwarf early-type galaxies in the Virgo cluster I. Internal kinematics
title_sort Formation and evolution of dwarf early-type galaxies in the Virgo cluster I. Internal kinematics
dc.creator.none.fl_str_mv Toloba, E.
Boselli, A.
Cenarro, A. J.
Peletier, R. F.
Gorgas García, Francisco Javier
Gil De Paz, Armando
Muñoz Mateos, Juan Carlos
author Toloba, E.
author_facet Toloba, E.
Boselli, A.
Cenarro, A. J.
Peletier, R. F.
Gorgas García, Francisco Javier
Gil De Paz, Armando
Muñoz Mateos, Juan Carlos
author_role author
author2 Boselli, A.
Cenarro, A. J.
Peletier, R. F.
Gorgas García, Francisco Javier
Gil De Paz, Armando
Muñoz Mateos, Juan Carlos
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Universidad Complutense de Madrid
dc.subject.none.fl_str_mv 52
Digital sky survey
Tully-fisher relation
Elliptic galaxies
Stellar populations
Fundamental plane
Rotation curves
Star-formation
Systems
Origin
Photometry
Astrofísica
Astronomía (Física)
topic 52
Digital sky survey
Tully-fisher relation
Elliptic galaxies
Stellar populations
Fundamental plane
Rotation curves
Star-formation
Systems
Origin
Photometry
Astrofísica
Astronomía (Física)
description We present new medium resolution kinematic data for a sample of 21 dwarf early-type galaxies (dEs) mainly in the Virgo cluster, obtained with the WHT and INT telescopes at the Roque de los Muchachos Observatory (La Palma, Spain). These data are used to study the origin of the dwarf elliptical galaxy population inhabiting clusters. We confirm that dEs are not dark matter dominated galaxies, at least not up to the half-light radius. We also find that the observed galaxies in the outer parts of the cluster are mostly rotationally supported systems with disky morphological shapes. Rotationally supported dEs have rotation curves similar to those of star-forming galaxies of similar luminosity and follow the Tully-Fisher relation. This is expected if dE galaxies are the descendants of low-luminosity star-forming systems that have recently entered the cluster environment and lost their gas due to a ram-pressure stripping event, quenching their star formation activity and transforming into quiescent systems, but conserving their angular momentum.
publishDate 2011
dc.date.none.fl_str_mv 2011
2011-02-01
2011
2011-02-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/20.500.14352/44881
url https://hdl.handle.net/20.500.14352/44881
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv EDP Sciencies
publisher.none.fl_str_mv EDP Sciencies
dc.source.none.fl_str_mv reponame:Docta Complutense
instname:Universidad Complutense de Madrid (UCM)
instname_str Universidad Complutense de Madrid (UCM)
reponame_str Docta Complutense
collection Docta Complutense
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300719

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