Accurate classification of 17 AGNs detected with swift/BAT*

Through an optical campaign performed at 5 telescopes located in the northern and the southern hemispheres, plus archival data from two on line sky surveys, we have obtained optical spectroscopy for 17 counterparts of suspected or poorly studied hard X-ray emitting active galactic nuclei (AGNs) dete...

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Detalles Bibliográficos
Autor: VAHRAM CHAVUSHYAN
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2009
País:México
Institución:Instituto Nacional de Astrofísica, Óptica y Electrónica
Repositorio:Repositorio Institucional del INAOE
Idioma:inglés
OAI Identifier:oai:inaoe.repositorioinstitucional.mx:1009/1316
Acceso en línea:http://inaoe.repositorioinstitucional.mx/jspui/handle/1009/1316
Access Level:acceso abierto
Palabra clave:info:eu-repo/classification/Inspec/Galaxies: Seyfert
info:eu-repo/classification/Inspec/Techniques: spectroscopic
info:eu-repo/classification/cti/1
info:eu-repo/classification/cti/21
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repository_id_str
spelling Accurate classification of 17 AGNs detected with swift/BAT*VAHRAM CHAVUSHYANinfo:eu-repo/classification/Inspec/Galaxies: Seyfertinfo:eu-repo/classification/Inspec/Techniques: spectroscopicinfo:eu-repo/classification/cti/1info:eu-repo/classification/cti/21info:eu-repo/classification/cti/21Through an optical campaign performed at 5 telescopes located in the northern and the southern hemispheres, plus archival data from two on line sky surveys, we have obtained optical spectroscopy for 17 counterparts of suspected or poorly studied hard X-ray emitting active galactic nuclei (AGNs) detected with Swift/BAT in order to determine or better classify their nature. We find that 7 sources of our sample are type 1 AGNs, 9 are type 2 AGNs, and 1 object is an X-ray bright optically normal galaxy; the redshifts of these objects lie in a range between 0.012 and 0.286. For all these sources, X-ray data analysis was also performed to estimate their absorption column and to search for possible Compton thick candidates. Among our type 2 objects, we did not find any clear Compton thick AGN, but at least 6 out of 9 of them are highly absorbed (Nⲏ > 10²³ cm⁻²), while one does not require intrinsic absorption; i.e., it appears to be a naked Seyfert 2 galaxy.Astronomy and Astrophysics2009info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionapplication/pdfhttp://inaoe.repositorioinstitucional.mx/jspui/handle/1009/1316reponame:Repositorio Institucional del INAOEinstname:Instituto Nacional de Astrofísica, Óptica y Electrónicainstacron:INAOEengcitation:Parisi, P., et al., (2009). Accurate classification of 17 AGNs detected with swift/BAT*, Astronomy and Astrophysics. Vol. 507(3):1345–1358info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-nd/4.0oai:inaoe.repositorioinstitucional.mx:1009/13162024-08-28T03:22:54Z
dc.title.none.fl_str_mv Accurate classification of 17 AGNs detected with swift/BAT*
title Accurate classification of 17 AGNs detected with swift/BAT*
spellingShingle Accurate classification of 17 AGNs detected with swift/BAT*
VAHRAM CHAVUSHYAN
info:eu-repo/classification/Inspec/Galaxies: Seyfert
info:eu-repo/classification/Inspec/Techniques: spectroscopic
info:eu-repo/classification/cti/1
info:eu-repo/classification/cti/21
info:eu-repo/classification/cti/21
title_short Accurate classification of 17 AGNs detected with swift/BAT*
title_full Accurate classification of 17 AGNs detected with swift/BAT*
title_fullStr Accurate classification of 17 AGNs detected with swift/BAT*
title_full_unstemmed Accurate classification of 17 AGNs detected with swift/BAT*
title_sort Accurate classification of 17 AGNs detected with swift/BAT*
dc.creator.none.fl_str_mv VAHRAM CHAVUSHYAN
author VAHRAM CHAVUSHYAN
author_facet VAHRAM CHAVUSHYAN
author_role author
dc.subject.none.fl_str_mv info:eu-repo/classification/Inspec/Galaxies: Seyfert
info:eu-repo/classification/Inspec/Techniques: spectroscopic
info:eu-repo/classification/cti/1
info:eu-repo/classification/cti/21
info:eu-repo/classification/cti/21
topic info:eu-repo/classification/Inspec/Galaxies: Seyfert
info:eu-repo/classification/Inspec/Techniques: spectroscopic
info:eu-repo/classification/cti/1
info:eu-repo/classification/cti/21
info:eu-repo/classification/cti/21
description Through an optical campaign performed at 5 telescopes located in the northern and the southern hemispheres, plus archival data from two on line sky surveys, we have obtained optical spectroscopy for 17 counterparts of suspected or poorly studied hard X-ray emitting active galactic nuclei (AGNs) detected with Swift/BAT in order to determine or better classify their nature. We find that 7 sources of our sample are type 1 AGNs, 9 are type 2 AGNs, and 1 object is an X-ray bright optically normal galaxy; the redshifts of these objects lie in a range between 0.012 and 0.286. For all these sources, X-ray data analysis was also performed to estimate their absorption column and to search for possible Compton thick candidates. Among our type 2 objects, we did not find any clear Compton thick AGN, but at least 6 out of 9 of them are highly absorbed (Nⲏ > 10²³ cm⁻²), while one does not require intrinsic absorption; i.e., it appears to be a naked Seyfert 2 galaxy.
publishDate 2009
dc.date.none.fl_str_mv 2009
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://inaoe.repositorioinstitucional.mx/jspui/handle/1009/1316
url http://inaoe.repositorioinstitucional.mx/jspui/handle/1009/1316
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv citation:Parisi, P., et al., (2009). Accurate classification of 17 AGNs detected with swift/BAT*, Astronomy and Astrophysics. Vol. 507(3):1345–1358
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-nd/4.0
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-nd/4.0
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Astronomy and Astrophysics
publisher.none.fl_str_mv Astronomy and Astrophysics
dc.source.none.fl_str_mv reponame:Repositorio Institucional del INAOE
instname:Instituto Nacional de Astrofísica, Óptica y Electrónica
instacron:INAOE
instname_str Instituto Nacional de Astrofísica, Óptica y Electrónica
instacron_str INAOE
institution INAOE
reponame_str Repositorio Institucional del INAOE
collection Repositorio Institucional del INAOE
repository.name.fl_str_mv
repository.mail.fl_str_mv
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