Numerical estimates of the accretion rate on to intermediate-mass black holes

Autores
Pepe, Carolina; Pellizza González, Leonardo Javier
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The existence of intermediate-mass (∼103 M⊙) black holes (IMBHs) in the centre of glob- ular clusters has been suggested by different observations. The X-ray sources observed in NGC 6388 and in G1 in M31 could be interpreted as being powered by the accretion of matter on to such objects. In this work, we explore a scenario in which the black hole accretes from the cluster interstellar medium, which is generated by the mass-loss of the red giants in the cluster. We estimate the accretion rate on to the black hole and compare it to the values obtained via the traditional Bondi–Hoyle model. Our results show that the accretion rate is no longer solely defined by the black hole mass and the ambient parameters but also by the host cluster itself. Furthermore, we find that the more massive globular clusters with large stellar velocity dispersion are the best candidates in which accretion on to IMBHs could be detected.
Fil: Pepe, Carolina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio(i); Argentina
Fil: Pellizza González, Leonardo Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio(i); Argentina
Materia
ACCRETION
ACCRETION DISCS-BLACK HOLE PHYSICS-GLOBULAR CLUSTERS
GENERAL.
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:11336/669
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Numerical estimates of the accretion rate on to intermediate-mass black holesPepe, CarolinaPellizza González, Leonardo JavierACCRETIONACCRETION DISCS-BLACK HOLE PHYSICS-GLOBULAR CLUSTERSGENERAL.https://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1The existence of intermediate-mass (∼103 M⊙) black holes (IMBHs) in the centre of glob- ular clusters has been suggested by different observations. The X-ray sources observed in NGC 6388 and in G1 in M31 could be interpreted as being powered by the accretion of matter on to such objects. In this work, we explore a scenario in which the black hole accretes from the cluster interstellar medium, which is generated by the mass-loss of the red giants in the cluster. We estimate the accretion rate on to the black hole and compare it to the values obtained via the traditional Bondi–Hoyle model. Our results show that the accretion rate is no longer solely defined by the black hole mass and the ambient parameters but also by the host cluster itself. Furthermore, we find that the more massive globular clusters with large stellar velocity dispersion are the best candidates in which accretion on to IMBHs could be detected.Fil: Pepe, Carolina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio(i); ArgentinaFil: Pellizza González, Leonardo Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio(i); ArgentinaWiley Blackwell Publishing, Inc2013-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/669Pepe, Carolina; Pellizza González, Leonardo Javier; Numerical estimates of the accretion rate on to intermediate-mass black holes; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 430; 4; 4-2013; 2789-27960035-8711enginfo:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stt080info:eu-repo/semantics/altIdentifier/url/http://arxiv.org/abs/1211.5182info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:28:23Zoai:ri.conicet.gov.ar:11336/669instacron: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:34982025-10-22 11:28:23.964CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Numerical estimates of the accretion rate on to intermediate-mass black holes
title Numerical estimates of the accretion rate on to intermediate-mass black holes
spellingShingle Numerical estimates of the accretion rate on to intermediate-mass black holes
Pepe, Carolina
ACCRETION
ACCRETION DISCS-BLACK HOLE PHYSICS-GLOBULAR CLUSTERS
GENERAL.
title_short Numerical estimates of the accretion rate on to intermediate-mass black holes
title_full Numerical estimates of the accretion rate on to intermediate-mass black holes
title_fullStr Numerical estimates of the accretion rate on to intermediate-mass black holes
title_full_unstemmed Numerical estimates of the accretion rate on to intermediate-mass black holes
title_sort Numerical estimates of the accretion rate on to intermediate-mass black holes
dc.creator.none.fl_str_mv Pepe, Carolina
Pellizza González, Leonardo Javier
author Pepe, Carolina
author_facet Pepe, Carolina
Pellizza González, Leonardo Javier
author_role author
author2 Pellizza González, Leonardo Javier
author2_role author
dc.subject.none.fl_str_mv ACCRETION
ACCRETION DISCS-BLACK HOLE PHYSICS-GLOBULAR CLUSTERS
GENERAL.
topic ACCRETION
ACCRETION DISCS-BLACK HOLE PHYSICS-GLOBULAR CLUSTERS
GENERAL.
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The existence of intermediate-mass (∼103 M⊙) black holes (IMBHs) in the centre of glob- ular clusters has been suggested by different observations. The X-ray sources observed in NGC 6388 and in G1 in M31 could be interpreted as being powered by the accretion of matter on to such objects. In this work, we explore a scenario in which the black hole accretes from the cluster interstellar medium, which is generated by the mass-loss of the red giants in the cluster. We estimate the accretion rate on to the black hole and compare it to the values obtained via the traditional Bondi–Hoyle model. Our results show that the accretion rate is no longer solely defined by the black hole mass and the ambient parameters but also by the host cluster itself. Furthermore, we find that the more massive globular clusters with large stellar velocity dispersion are the best candidates in which accretion on to IMBHs could be detected.
Fil: Pepe, Carolina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio(i); Argentina
Fil: Pellizza González, Leonardo Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio(i); Argentina
description The existence of intermediate-mass (∼103 M⊙) black holes (IMBHs) in the centre of glob- ular clusters has been suggested by different observations. The X-ray sources observed in NGC 6388 and in G1 in M31 could be interpreted as being powered by the accretion of matter on to such objects. In this work, we explore a scenario in which the black hole accretes from the cluster interstellar medium, which is generated by the mass-loss of the red giants in the cluster. We estimate the accretion rate on to the black hole and compare it to the values obtained via the traditional Bondi–Hoyle model. Our results show that the accretion rate is no longer solely defined by the black hole mass and the ambient parameters but also by the host cluster itself. Furthermore, we find that the more massive globular clusters with large stellar velocity dispersion are the best candidates in which accretion on to IMBHs could be detected.
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/11336/669
Pepe, Carolina; Pellizza González, Leonardo Javier; Numerical estimates of the accretion rate on to intermediate-mass black holes; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 430; 4; 4-2013; 2789-2796
0035-8711
url http://hdl.handle.net/11336/669
identifier_str_mv Pepe, Carolina; Pellizza González, Leonardo Javier; Numerical estimates of the accretion rate on to intermediate-mass black holes; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 430; 4; 4-2013; 2789-2796
0035-8711
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stt080
info:eu-repo/semantics/altIdentifier/url/http://arxiv.org/abs/1211.5182
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 Wiley Blackwell Publishing, Inc
publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
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 12.982451

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