On the nature of the hard X-ray source IGR J2018+4043

Autores
Bykov, A. M.; Krassilchtchikov, A. M.; Uvarov, Yu. A.; Kennea, J. A.; Pavlov, G. G.; Dubner, Gloria Mabel; Giacani, Elsa Beatriz
Año de publicación
2006
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We found a very likely counterpart to the recently discovered hard X-ray source IGR J2018 4043 in the multiwavelength observations of the source field. The source, originally discovered in the 20–40 keV band, is now confidently detected also in the 40–80 keV band, with a flux of . A 5 ks 11 2 1 (1.4 0.4) # 10 ergs cm s Swift observation of the IGR J2018 4043 field revealed a hard pointlike source with an observed 0.5–10 keV flux of ergs cm2 s 1 (90% confidence level) at , (with a 4 .2 0.7 12 hms 3.40.8 # 10 a p 20 18 38.55 d p 4041 00 .4 uncertainty). The combined Swift-INTEGRAL spectrum can be described by an absorbed power-law model with photon index and cm2 . In archival optical and infrared data we found a slightly 3.2 22 G p 1.3 0.2 NH p 6.12.2 # 10 extended and highly absorbed object at the Swift source position. There is also an extended VLA 1.4 GHz source peaked at a beamwidth distance from the optical and X-ray positions. The observed morphology and multiwavelength spectra of IGR J2018 4043 are consistent with those expected for an obscured accreting object, i.e., an AGN or a Galactic X-ray binary. The identification suggests possible connection of IGR J2018 4043 to the bright g-ray source GEV J2020 4023 detected by COS B and CGRO EGRET.
Fil: Bykov, A. M.. Russian Academy of Sciences; Rusia
Fil: Krassilchtchikov, A. M.. Russian Academy of Sciences; Rusia
Fil: Uvarov, Yu. A.. Russian Academy of Sciences; Rusia
Fil: Kennea, J. A.. State University of Pennsylvania; Estados Unidos
Fil: Pavlov, G. G.. University of Pennsylvania; Estados Unidos
Fil: Dubner, Gloria Mabel. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
Fil: Giacani, Elsa Beatriz. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
Materia
x-ray
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:11336/22172
Acceder
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network_name_str CONICET Digital (CONICET)
spelling On the nature of the hard X-ray source IGR J2018+4043Bykov, A. M.Krassilchtchikov, A. M.Uvarov, Yu. A.Kennea, J. A.Pavlov, G. G.Dubner, Gloria MabelGiacani, Elsa Beatrizx-rayhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We found a very likely counterpart to the recently discovered hard X-ray source IGR J2018 4043 in the multiwavelength observations of the source field. The source, originally discovered in the 20–40 keV band, is now confidently detected also in the 40–80 keV band, with a flux of . A 5 ks 11 2 1 (1.4 0.4) # 10 ergs cm s Swift observation of the IGR J2018 4043 field revealed a hard pointlike source with an observed 0.5–10 keV flux of ergs cm2 s 1 (90% confidence level) at , (with a 4 .2 0.7 12 hms 3.40.8 # 10 a p 20 18 38.55 d p 4041 00 .4 uncertainty). The combined Swift-INTEGRAL spectrum can be described by an absorbed power-law model with photon index and cm2 . In archival optical and infrared data we found a slightly 3.2 22 G p 1.3 0.2 NH p 6.12.2 # 10 extended and highly absorbed object at the Swift source position. There is also an extended VLA 1.4 GHz source peaked at a beamwidth distance from the optical and X-ray positions. The observed morphology and multiwavelength spectra of IGR J2018 4043 are consistent with those expected for an obscured accreting object, i.e., an AGN or a Galactic X-ray binary. The identification suggests possible connection of IGR J2018 4043 to the bright g-ray source GEV J2020 4023 detected by COS B and CGRO EGRET.Fil: Bykov, A. M.. Russian Academy of Sciences; RusiaFil: Krassilchtchikov, A. M.. Russian Academy of Sciences; RusiaFil: Uvarov, Yu. A.. Russian Academy of Sciences; RusiaFil: Kennea, J. A.. State University of Pennsylvania; Estados UnidosFil: Pavlov, G. G.. University of Pennsylvania; Estados UnidosFil: Dubner, Gloria Mabel. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; ArgentinaFil: Giacani, Elsa Beatriz. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; ArgentinaIOP Publishing2006-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/22172Bykov, A. M.; Krassilchtchikov, A. M.; Uvarov, Yu. A.; Kennea, J. A.; Pavlov, G. G.; et al.; On the nature of the hard X-ray source IGR J2018+4043; IOP Publishing; Astrophysical Journal; 649; 1; 12-2006; L21-L240004-637XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/article/10.1086/508327info:eu-repo/semantics/altIdentifier/doi/10.1086/508327info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/astro-ph/0609676info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:36:34Zoai:ri.conicet.gov.ar:11336/22172instacron: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 09:36:34.51CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv On the nature of the hard X-ray source IGR J2018+4043
title On the nature of the hard X-ray source IGR J2018+4043
spellingShingle On the nature of the hard X-ray source IGR J2018+4043
Bykov, A. M.
x-ray
title_short On the nature of the hard X-ray source IGR J2018+4043
title_full On the nature of the hard X-ray source IGR J2018+4043
title_fullStr On the nature of the hard X-ray source IGR J2018+4043
title_full_unstemmed On the nature of the hard X-ray source IGR J2018+4043
title_sort On the nature of the hard X-ray source IGR J2018+4043
dc.creator.none.fl_str_mv Bykov, A. M.
Krassilchtchikov, A. M.
Uvarov, Yu. A.
Kennea, J. A.
Pavlov, G. G.
Dubner, Gloria Mabel
Giacani, Elsa Beatriz
author Bykov, A. M.
author_facet Bykov, A. M.
Krassilchtchikov, A. M.
Uvarov, Yu. A.
Kennea, J. A.
Pavlov, G. G.
Dubner, Gloria Mabel
Giacani, Elsa Beatriz
author_role author
author2 Krassilchtchikov, A. M.
Uvarov, Yu. A.
Kennea, J. A.
Pavlov, G. G.
Dubner, Gloria Mabel
Giacani, Elsa Beatriz
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv x-ray
topic x-ray
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We found a very likely counterpart to the recently discovered hard X-ray source IGR J2018 4043 in the multiwavelength observations of the source field. The source, originally discovered in the 20–40 keV band, is now confidently detected also in the 40–80 keV band, with a flux of . A 5 ks 11 2 1 (1.4 0.4) # 10 ergs cm s Swift observation of the IGR J2018 4043 field revealed a hard pointlike source with an observed 0.5–10 keV flux of ergs cm2 s 1 (90% confidence level) at , (with a 4 .2 0.7 12 hms 3.40.8 # 10 a p 20 18 38.55 d p 4041 00 .4 uncertainty). The combined Swift-INTEGRAL spectrum can be described by an absorbed power-law model with photon index and cm2 . In archival optical and infrared data we found a slightly 3.2 22 G p 1.3 0.2 NH p 6.12.2 # 10 extended and highly absorbed object at the Swift source position. There is also an extended VLA 1.4 GHz source peaked at a beamwidth distance from the optical and X-ray positions. The observed morphology and multiwavelength spectra of IGR J2018 4043 are consistent with those expected for an obscured accreting object, i.e., an AGN or a Galactic X-ray binary. The identification suggests possible connection of IGR J2018 4043 to the bright g-ray source GEV J2020 4023 detected by COS B and CGRO EGRET.
Fil: Bykov, A. M.. Russian Academy of Sciences; Rusia
Fil: Krassilchtchikov, A. M.. Russian Academy of Sciences; Rusia
Fil: Uvarov, Yu. A.. Russian Academy of Sciences; Rusia
Fil: Kennea, J. A.. State University of Pennsylvania; Estados Unidos
Fil: Pavlov, G. G.. University of Pennsylvania; Estados Unidos
Fil: Dubner, Gloria Mabel. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
Fil: Giacani, Elsa Beatriz. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
description We found a very likely counterpart to the recently discovered hard X-ray source IGR J2018 4043 in the multiwavelength observations of the source field. The source, originally discovered in the 20–40 keV band, is now confidently detected also in the 40–80 keV band, with a flux of . A 5 ks 11 2 1 (1.4 0.4) # 10 ergs cm s Swift observation of the IGR J2018 4043 field revealed a hard pointlike source with an observed 0.5–10 keV flux of ergs cm2 s 1 (90% confidence level) at , (with a 4 .2 0.7 12 hms 3.40.8 # 10 a p 20 18 38.55 d p 4041 00 .4 uncertainty). The combined Swift-INTEGRAL spectrum can be described by an absorbed power-law model with photon index and cm2 . In archival optical and infrared data we found a slightly 3.2 22 G p 1.3 0.2 NH p 6.12.2 # 10 extended and highly absorbed object at the Swift source position. There is also an extended VLA 1.4 GHz source peaked at a beamwidth distance from the optical and X-ray positions. The observed morphology and multiwavelength spectra of IGR J2018 4043 are consistent with those expected for an obscured accreting object, i.e., an AGN or a Galactic X-ray binary. The identification suggests possible connection of IGR J2018 4043 to the bright g-ray source GEV J2020 4023 detected by COS B and CGRO EGRET.
publishDate 2006
dc.date.none.fl_str_mv 2006-12
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/11336/22172
Bykov, A. M.; Krassilchtchikov, A. M.; Uvarov, Yu. A.; Kennea, J. A.; Pavlov, G. G.; et al.; On the nature of the hard X-ray source IGR J2018+4043; IOP Publishing; Astrophysical Journal; 649; 1; 12-2006; L21-L24
0004-637X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/22172
identifier_str_mv Bykov, A. M.; Krassilchtchikov, A. M.; Uvarov, Yu. A.; Kennea, J. A.; Pavlov, G. G.; et al.; On the nature of the hard X-ray source IGR J2018+4043; IOP Publishing; Astrophysical Journal; 649; 1; 12-2006; L21-L24
0004-637X
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/article/10.1086/508327
info:eu-repo/semantics/altIdentifier/doi/10.1086/508327
info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/astro-ph/0609676
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
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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