About the linearity of the color-magnitude relation of early-type galaxies in the Virgo Cluster

Autores
Smith Castelli, Analía Viviana; González, Nélida Mabel; Faifer, Favio Raúl; Forte, Juan Carlos
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We revisit the color-magnitude relation of Virgo Cluster early-type galaxies in order to explore its alleged nonlinearity. To this aim, we reanalyze the relation already published from data obtained within the ACS Virgo Cluster Survey of the Hubble Space Telescope and perform our own photometry and analysis of the images of 100 early-type galaxies observed as part of this survey. In addition, we compare our results with those reported in the literature from data of the Sloan Digital Sky Survey. We have found that when the brightest galaxies and untypical systems are excluded from the sample, a linear relation arises in agreement with what is observed in other groups and clusters. The central regions of the brightest galaxies also follow this relation. In addition, we notice that Virgo contains at least four compact elliptical galaxies besides the well-known object VCC 1297 (NGC 4486B). Their locations in the 〈μeff〉-luminosity diagram define a trend different from that followed by normal early-type dwarf galaxies, setting an upper limit in effective surface brightness and a lower limit in the effective radius for their luminosities. Based on the distribution of different galaxy sub-samples in the color-magnitude and 〈μeff〉-luminosity diagrams, we draw some conclusions on their formation and the history of their evolution.
Instituto de Astrofísica de La Plata
Facultad de Ciencias Astronómicas y Geofísicas
Materia
Ciencias Astronómicas
galaxies: clusters: general
galaxies: clusters: individual (Virgo)
galaxies: dwarf
galaxies: elliptical and lenticular, cD
galaxies: photometry
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/85350
Acceder
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oai_identifier_str oai:sedici.unlp.edu.ar:10915/85350
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling About the linearity of the color-magnitude relation of early-type galaxies in the Virgo ClusterSmith Castelli, Analía VivianaGonzález, Nélida MabelFaifer, Favio RaúlForte, Juan CarlosCiencias Astronómicasgalaxies: clusters: generalgalaxies: clusters: individual (Virgo)galaxies: dwarfgalaxies: elliptical and lenticular, cDgalaxies: photometryWe revisit the color-magnitude relation of Virgo Cluster early-type galaxies in order to explore its alleged nonlinearity. To this aim, we reanalyze the relation already published from data obtained within the ACS Virgo Cluster Survey of the Hubble Space Telescope and perform our own photometry and analysis of the images of 100 early-type galaxies observed as part of this survey. In addition, we compare our results with those reported in the literature from data of the Sloan Digital Sky Survey. We have found that when the brightest galaxies and untypical systems are excluded from the sample, a linear relation arises in agreement with what is observed in other groups and clusters. The central regions of the brightest galaxies also follow this relation. In addition, we notice that Virgo contains at least four compact elliptical galaxies besides the well-known object VCC 1297 (NGC 4486B). Their locations in the 〈μeff〉-luminosity diagram define a trend different from that followed by normal early-type dwarf galaxies, setting an upper limit in effective surface brightness and a lower limit in the effective radius for their luminosities. Based on the distribution of different galaxy sub-samples in the color-magnitude and 〈μeff〉-luminosity diagrams, we draw some conclusions on their formation and the history of their evolution.Instituto de Astrofísica de La PlataFacultad de Ciencias Astronómicas y Geofísicas2013info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/85350enginfo:eu-repo/semantics/altIdentifier/issn/0004-637Xinfo:eu-repo/semantics/altIdentifier/doi/10.1088/0004-637X/772/1/68info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:16:30Zoai:sedici.unlp.edu.ar:10915/85350Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:16:30.878SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv About the linearity of the color-magnitude relation of early-type galaxies in the Virgo Cluster
title About the linearity of the color-magnitude relation of early-type galaxies in the Virgo Cluster
spellingShingle About the linearity of the color-magnitude relation of early-type galaxies in the Virgo Cluster
Smith Castelli, Analía Viviana
Ciencias Astronómicas
galaxies: clusters: general
galaxies: clusters: individual (Virgo)
galaxies: dwarf
galaxies: elliptical and lenticular, cD
galaxies: photometry
title_short About the linearity of the color-magnitude relation of early-type galaxies in the Virgo Cluster
title_full About the linearity of the color-magnitude relation of early-type galaxies in the Virgo Cluster
title_fullStr About the linearity of the color-magnitude relation of early-type galaxies in the Virgo Cluster
title_full_unstemmed About the linearity of the color-magnitude relation of early-type galaxies in the Virgo Cluster
title_sort About the linearity of the color-magnitude relation of early-type galaxies in the Virgo Cluster
dc.creator.none.fl_str_mv Smith Castelli, Analía Viviana
González, Nélida Mabel
Faifer, Favio Raúl
Forte, Juan Carlos
author Smith Castelli, Analía Viviana
author_facet Smith Castelli, Analía Viviana
González, Nélida Mabel
Faifer, Favio Raúl
Forte, Juan Carlos
author_role author
author2 González, Nélida Mabel
Faifer, Favio Raúl
Forte, Juan Carlos
author2_role author
author
author
dc.subject.none.fl_str_mv Ciencias Astronómicas
galaxies: clusters: general
galaxies: clusters: individual (Virgo)
galaxies: dwarf
galaxies: elliptical and lenticular, cD
galaxies: photometry
topic Ciencias Astronómicas
galaxies: clusters: general
galaxies: clusters: individual (Virgo)
galaxies: dwarf
galaxies: elliptical and lenticular, cD
galaxies: photometry
dc.description.none.fl_txt_mv We revisit the color-magnitude relation of Virgo Cluster early-type galaxies in order to explore its alleged nonlinearity. To this aim, we reanalyze the relation already published from data obtained within the ACS Virgo Cluster Survey of the Hubble Space Telescope and perform our own photometry and analysis of the images of 100 early-type galaxies observed as part of this survey. In addition, we compare our results with those reported in the literature from data of the Sloan Digital Sky Survey. We have found that when the brightest galaxies and untypical systems are excluded from the sample, a linear relation arises in agreement with what is observed in other groups and clusters. The central regions of the brightest galaxies also follow this relation. In addition, we notice that Virgo contains at least four compact elliptical galaxies besides the well-known object VCC 1297 (NGC 4486B). Their locations in the 〈μeff〉-luminosity diagram define a trend different from that followed by normal early-type dwarf galaxies, setting an upper limit in effective surface brightness and a lower limit in the effective radius for their luminosities. Based on the distribution of different galaxy sub-samples in the color-magnitude and 〈μeff〉-luminosity diagrams, we draw some conclusions on their formation and the history of their evolution.
Instituto de Astrofísica de La Plata
Facultad de Ciencias Astronómicas y Geofísicas
description We revisit the color-magnitude relation of Virgo Cluster early-type galaxies in order to explore its alleged nonlinearity. To this aim, we reanalyze the relation already published from data obtained within the ACS Virgo Cluster Survey of the Hubble Space Telescope and perform our own photometry and analysis of the images of 100 early-type galaxies observed as part of this survey. In addition, we compare our results with those reported in the literature from data of the Sloan Digital Sky Survey. We have found that when the brightest galaxies and untypical systems are excluded from the sample, a linear relation arises in agreement with what is observed in other groups and clusters. The central regions of the brightest galaxies also follow this relation. In addition, we notice that Virgo contains at least four compact elliptical galaxies besides the well-known object VCC 1297 (NGC 4486B). Their locations in the 〈μeff〉-luminosity diagram define a trend different from that followed by normal early-type dwarf galaxies, setting an upper limit in effective surface brightness and a lower limit in the effective radius for their luminosities. Based on the distribution of different galaxy sub-samples in the color-magnitude and 〈μeff〉-luminosity diagrams, we draw some conclusions on their formation and the history of their evolution.
publishDate 2013
dc.date.none.fl_str_mv 2013
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
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://sedici.unlp.edu.ar/handle/10915/85350
url http://sedici.unlp.edu.ar/handle/10915/85350
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/0004-637X
info:eu-repo/semantics/altIdentifier/doi/10.1088/0004-637X/772/1/68
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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score 13.070432

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