A candidate tidal disruption event in the Galaxy cluster Abell 3571

Tidal disruption events are possible sources of temporary nuclear activity in galactic nuclei and can be considered as good indicators of the existence of super massive black holes in the centers of galaxies. A new X-ray source has been serendipitously detected with ROSAT in a PSPC pointed observati...

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Autores: Cappelluti, N., Quintana, H.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2009
País:Chile
Idioma:inglés
OAI Identifier:oai:repositorio.anid.cl:10533/236976
Acceso en línea:https://hdl.handle.net/10533/236976
Access Level:acceso abierto
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spelling Quintana, H.Cappelluti, N.200910.1051/0004-6361/200811479https://hdl.handle.net/10533/236976http://purl.org/coar/access_right/c_abf2A candidate tidal disruption event in the Galaxy cluster Abell 3571Cappelluti, N.Quintana, H.2019-12-18T18:14:27Z2022-07-07T21:59:50Z2019-12-18T18:14:27Z2022-07-07T21:59:50Z2009Tidal disruption events are possible sources of temporary nuclear activity in galactic nuclei and can be considered as good indicators of the existence of super massive black holes in the centers of galaxies. A new X-ray source has been serendipitously detected with ROSAT in a PSPC pointed observation of the galaxy cluster A3571. Given the strong flux decay of the object in subsequent detections, the tidal disruption scenario is investigated as possible explanationof the event. We followed up the evolution of the X-ray transient with ROSAT, XMM-Newton and Chandra for a total period of ~13 years. We also obtained 7-band optical/NIR photometry with GROND at the ESO/MPI 2.2m telescope. We report a very large decay of the X-ray flux of ROSAT source identified with the galaxy LEDA 095953 a member of the cluster Abell 3571. We measured a maximum 0.3-2.4 keV luminosity Log(L_X)=42.8 erg s^-1. The high state of the source lasted at least 150 ks, afterwards L_X declined as ~t^-2. The spectrum of the brightest epoch is consistent with a black body with temperature kT ~0.12 keV. The total energy released by this event in 10 yr was estimated to be Delta_E>2x10^50 erg. We interpret this event as a tidal disruption of a solar type star by the central supermassive black hole (i.e. ~10^7 M_sun) of the galaxy.FONDAPFONDAP1501000315010003virtual::33317-1WOS:000263775700002https://hdl.handle.net/10533/236976enginstname: Conicytreponame: Repositorio Digital RI2.010.1051/0004-6361/200811479info:eu-repo/grantAgreement/Fondap/15010003https://arxiv.org/abs/0901.3357Atribución-NoComercial-SinDerivadas 3.0 Chilehttp://creativecommons.org/licenses/by-nc-nd/3.0/cl/info:eu-repo/semantics/openAccessA candidate tidal disruption event in the Galaxy cluster Abell 3571Astronomy & AstrophysicsArticuloinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttps://hdl.handle.net/10533/236976http://purl.org/coar/resource_type/c_2df8fbb1045fc0e1-ef55-4532-8afe-69fe789d964dvirtual::33317-1045fc0e1-ef55-4532-8afe-69fe789d964dvirtual::33317-110533/236976oai:repositorio.anid.cl:10533/2369762023-07-24 15:41:20.327https://repositorio.anid.clRepositorio ANIDaletelier@anid.cl
dc.title.none.fl_str_mv A candidate tidal disruption event in the Galaxy cluster Abell 3571
dc.title.journal.none.fl_str_mv Astronomy & Astrophysics
title A candidate tidal disruption event in the Galaxy cluster Abell 3571
spellingShingle A candidate tidal disruption event in the Galaxy cluster Abell 3571
Cappelluti, N.
title_short A candidate tidal disruption event in the Galaxy cluster Abell 3571
title_full A candidate tidal disruption event in the Galaxy cluster Abell 3571
title_fullStr A candidate tidal disruption event in the Galaxy cluster Abell 3571
title_full_unstemmed A candidate tidal disruption event in the Galaxy cluster Abell 3571
title_sort A candidate tidal disruption event in the Galaxy cluster Abell 3571
dc.creator.none.fl_str_mv Cappelluti, N.
Quintana, H.
author Cappelluti, N.
author_facet Cappelluti, N.
Quintana, H.
author_role author
author2 Quintana, H.
author2_role author
description Tidal disruption events are possible sources of temporary nuclear activity in galactic nuclei and can be considered as good indicators of the existence of super massive black holes in the centers of galaxies. A new X-ray source has been serendipitously detected with ROSAT in a PSPC pointed observation of the galaxy cluster A3571. Given the strong flux decay of the object in subsequent detections, the tidal disruption scenario is investigated as possible explanationof the event. We followed up the evolution of the X-ray transient with ROSAT, XMM-Newton and Chandra for a total period of ~13 years. We also obtained 7-band optical/NIR photometry with GROND at the ESO/MPI 2.2m telescope. We report a very large decay of the X-ray flux of ROSAT source identified with the galaxy LEDA 095953 a member of the cluster Abell 3571. We measured a maximum 0.3-2.4 keV luminosity Log(L_X)=42.8 erg s^-1. The high state of the source lasted at least 150 ks, afterwards L_X declined as ~t^-2. The spectrum of the brightest epoch is consistent with a black body with temperature kT ~0.12 keV. The total energy released by this event in 10 yr was estimated to be Delta_E>2x10^50 erg. We interpret this event as a tidal disruption of a solar type star by the central supermassive black hole (i.e. ~10^7 M_sun) of the galaxy.
publishDate 2009
dc.date.issued.none.fl_str_mv 2009
dc.date.accessioned.none.fl_str_mv 2019-12-18T18:14:27Z
2022-07-07T21:59:50Z
dc.date.available.none.fl_str_mv 2019-12-18T18:14:27Z
2022-07-07T21:59:50Z
dc.type.none.fl_str_mv Articulo
dc.type.driver.none.fl_str_mv info:eu-repo/semantics/article
dc.type.openaire.none.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.folio.none.fl_str_mv 15010003
15010003
dc.identifier.idwos.none.fl_str_mv WOS:000263775700002
dc.identifier.uri.none.fl_str_mv https://hdl.handle.net/10533/236976
identifier_str_mv 15010003
WOS:000263775700002
url https://hdl.handle.net/10533/236976
dc.language.iso.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv instname: Conicyt
reponame: Repositorio Digital RI2.0
dc.relation.doi.none.fl_str_mv 10.1051/0004-6361/200811479
dc.relation.projectid.none.fl_str_mv info:eu-repo/grantAgreement/Fondap/15010003
dc.relation.uri.none.fl_str_mv https://arxiv.org/abs/0901.3357
dc.rights.none.fl_str_mv Atribución-NoComercial-SinDerivadas 3.0 Chile
http://creativecommons.org/licenses/by-nc-nd/3.0/cl/
dc.rights.driver.none.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv Atribución-NoComercial-SinDerivadas 3.0 Chile
http://creativecommons.org/licenses/by-nc-nd/3.0/cl/
eu_rights_str_mv openAccess
repository.name.fl_str_mv Repositorio ANID
repository.mail.fl_str_mv aletelier@anid.cl
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