The Abell 85 BCG: A Nucleated, Coreless Galaxy

Autores
Madrid, Juan P.; Donzelli, Carlos Jose
Año de publicación
2016
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
New high-resolution r-band imaging of the brightest cluster galaxy (BCG) in Abell 85 (Holm 15A) was obtained using the Gemini Multi Object Spectrograph. These data were taken with the aim of deriving an accurate surface brightness profile of the BCG of Abell 85, in particular, its central region. The new Gemini data show clear evidence of a previously unreported nuclear emission that is evident as a distinct light excess in the central kiloparsec of the surface brightness profile. We find that the light profile is never flat nor does it present a downward trend toward the center of the galaxy. That is, the new Gemini data show a different physical reality from the featureless, "evacuated core" recently claimed for the Abell 85 BCG. After trying different models, we find that the surface brightness profile of the BCG of Abell 85 is best fit by a double Sérsic model.
Fil: Madrid, Juan P.. Gemini Observatorysouthern Operations Center; Chile. Commonwealth Scientific And Industrial Research Organization; Australia
Fil: Donzelli, Carlos Jose. Observatorio Astronomico de la Universidad Nacional de Cordoba; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; 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
Materia
GALAXIES: CLUSTERS: GENERAL
GALAXIES: INDIVIDUAL (ABELL 85, HOLM 15A)
GALAXIES: NUCLEI
GALAXIES: 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:11336/183615
Acceder
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network_name_str CONICET Digital (CONICET)
spelling The Abell 85 BCG: A Nucleated, Coreless GalaxyMadrid, Juan P.Donzelli, Carlos JoseGALAXIES: CLUSTERS: GENERALGALAXIES: INDIVIDUAL (ABELL 85, HOLM 15A)GALAXIES: NUCLEIGALAXIES: STRUCTUREhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1New high-resolution r-band imaging of the brightest cluster galaxy (BCG) in Abell 85 (Holm 15A) was obtained using the Gemini Multi Object Spectrograph. These data were taken with the aim of deriving an accurate surface brightness profile of the BCG of Abell 85, in particular, its central region. The new Gemini data show clear evidence of a previously unreported nuclear emission that is evident as a distinct light excess in the central kiloparsec of the surface brightness profile. We find that the light profile is never flat nor does it present a downward trend toward the center of the galaxy. That is, the new Gemini data show a different physical reality from the featureless, "evacuated core" recently claimed for the Abell 85 BCG. After trying different models, we find that the surface brightness profile of the BCG of Abell 85 is best fit by a double Sérsic model.Fil: Madrid, Juan P.. Gemini Observatorysouthern Operations Center; Chile. Commonwealth Scientific And Industrial Research Organization; AustraliaFil: Donzelli, Carlos Jose. Observatorio Astronomico de la Universidad Nacional de Cordoba; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; 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; ArgentinaIOP Publishing2016-02-26info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/183615Madrid, Juan P.; Donzelli, Carlos Jose; The Abell 85 BCG: A Nucleated, Coreless Galaxy; IOP Publishing; Astrophysical Journal; 819; 1; 26-2-2016; 50-570004-637X1538-4357CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.3847/0004-637X/819/1/50info:eu-repo/semantics/altIdentifier/url/https://iopscience.iop.org/article/10.3847/0004-637X/819/1/50info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:33:41Zoai:ri.conicet.gov.ar:11336/183615instacron: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 09:33:42.061CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv The Abell 85 BCG: A Nucleated, Coreless Galaxy
title The Abell 85 BCG: A Nucleated, Coreless Galaxy
spellingShingle The Abell 85 BCG: A Nucleated, Coreless Galaxy
Madrid, Juan P.
GALAXIES: CLUSTERS: GENERAL
GALAXIES: INDIVIDUAL (ABELL 85, HOLM 15A)
GALAXIES: NUCLEI
GALAXIES: STRUCTURE
title_short The Abell 85 BCG: A Nucleated, Coreless Galaxy
title_full The Abell 85 BCG: A Nucleated, Coreless Galaxy
title_fullStr The Abell 85 BCG: A Nucleated, Coreless Galaxy
title_full_unstemmed The Abell 85 BCG: A Nucleated, Coreless Galaxy
title_sort The Abell 85 BCG: A Nucleated, Coreless Galaxy
dc.creator.none.fl_str_mv Madrid, Juan P.
Donzelli, Carlos Jose
author Madrid, Juan P.
author_facet Madrid, Juan P.
Donzelli, Carlos Jose
author_role author
author2 Donzelli, Carlos Jose
author2_role author
dc.subject.none.fl_str_mv GALAXIES: CLUSTERS: GENERAL
GALAXIES: INDIVIDUAL (ABELL 85, HOLM 15A)
GALAXIES: NUCLEI
GALAXIES: STRUCTURE
topic GALAXIES: CLUSTERS: GENERAL
GALAXIES: INDIVIDUAL (ABELL 85, HOLM 15A)
GALAXIES: NUCLEI
GALAXIES: 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 New high-resolution r-band imaging of the brightest cluster galaxy (BCG) in Abell 85 (Holm 15A) was obtained using the Gemini Multi Object Spectrograph. These data were taken with the aim of deriving an accurate surface brightness profile of the BCG of Abell 85, in particular, its central region. The new Gemini data show clear evidence of a previously unreported nuclear emission that is evident as a distinct light excess in the central kiloparsec of the surface brightness profile. We find that the light profile is never flat nor does it present a downward trend toward the center of the galaxy. That is, the new Gemini data show a different physical reality from the featureless, "evacuated core" recently claimed for the Abell 85 BCG. After trying different models, we find that the surface brightness profile of the BCG of Abell 85 is best fit by a double Sérsic model.
Fil: Madrid, Juan P.. Gemini Observatorysouthern Operations Center; Chile. Commonwealth Scientific And Industrial Research Organization; Australia
Fil: Donzelli, Carlos Jose. Observatorio Astronomico de la Universidad Nacional de Cordoba; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; 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
description New high-resolution r-band imaging of the brightest cluster galaxy (BCG) in Abell 85 (Holm 15A) was obtained using the Gemini Multi Object Spectrograph. These data were taken with the aim of deriving an accurate surface brightness profile of the BCG of Abell 85, in particular, its central region. The new Gemini data show clear evidence of a previously unreported nuclear emission that is evident as a distinct light excess in the central kiloparsec of the surface brightness profile. We find that the light profile is never flat nor does it present a downward trend toward the center of the galaxy. That is, the new Gemini data show a different physical reality from the featureless, "evacuated core" recently claimed for the Abell 85 BCG. After trying different models, we find that the surface brightness profile of the BCG of Abell 85 is best fit by a double Sérsic model.
publishDate 2016
dc.date.none.fl_str_mv 2016-02-26
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/11336/183615
Madrid, Juan P.; Donzelli, Carlos Jose; The Abell 85 BCG: A Nucleated, Coreless Galaxy; IOP Publishing; Astrophysical Journal; 819; 1; 26-2-2016; 50-57
0004-637X
1538-4357
CONICET Digital
CONICET
url http://hdl.handle.net/11336/183615
identifier_str_mv Madrid, Juan P.; Donzelli, Carlos Jose; The Abell 85 BCG: A Nucleated, Coreless Galaxy; IOP Publishing; Astrophysical Journal; 819; 1; 26-2-2016; 50-57
0004-637X
1538-4357
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.3847/0004-637X/819/1/50
info:eu-repo/semantics/altIdentifier/url/https://iopscience.iop.org/article/10.3847/0004-637X/819/1/50
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 IOP Publishing
publisher.none.fl_str_mv IOP 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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