High-energy gamma-ray production in microquasars

Fil: Christiansen, Hugo. Universidade Estadual Do Ceara; Brasil

Detalles Bibliográficos
Autores: Christiansen, Hugo, Romero, Gustavo E., Orellana, Mariana Dominga
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2007
País:Argentina
Institución:Universidad Nacional de Río Negro
Repositorio:RID-UNRN (UNRN)
Idioma:español
OAI Identifier:oai:rid.unrn.edu.ar:20.500.12049/2826
Acceso en línea:http://ref.scielo.org/gsfhzh
http://hdl.handle.net/11336/22323
https://rid.unrn.edu.ar/jspui/handle/20.500.12049/2826
http://dx.doi.org/10.1590/S0103-97332007000400012
Access Level:acceso abierto
Palabra clave:Ciencias Físicas
Microquasars
Gamma rays
Hadronic Models
Binary Systems
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spelling High-energy gamma-ray production in microquasarsChristiansen, HugoRomero, Gustavo E.Orellana, Mariana DomingaCiencias FísicasMicroquasarsGamma raysHadronic ModelsBinary SystemsCiencias FísicasFil: Christiansen, Hugo. Universidade Estadual Do Ceara; BrasilFil: Romero, Gustavo E. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; ArgentinaFil: Romero, Gustavo E. Comisión de Investigaciones Científicas; ArgentinaFil: Romero, Gustavo E. Instituto Argentino de Radioastronomia; ArgentinaFil: Orellana, Mariana D. Universidad Nacional de Río Negro; ArgentinaFil: Orellana, Mariana D. Comisión de Investigaciones Científicas; ArgentinaFil: Orellana, Mariana D. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; ArgentinaFil: Orellana, Mariana D. Instituto Argentino de Radioastronomía; ArgentinaA hadronic model for gamma-ray production in microquasars is presented. Microquasars are galactic binary systems with jets, which have, presumably, hadronic components. We consider a microquasar formed by a neutron star that accretes matter from the equatorial wind of a Be primary star. The collision between the jet, emitted by the compact object, and the dense equatorial disk of the companion massive star is responsible for the gamma-ray production. Gamma-rays result from the decay of neutral pions produced in relativistic pp interactions arising from this collision all along the orbit. Assuming a simple, positional independent set of parameters, our calculations are consistent with a peak of gamma-ray flux at the periastron passage with a secondary maximum near apastron. Under this assumption, gamma-ray signals would be in contrast with the radio/X-ray outbursts which peak clearly after periastron. We finally calculate the opacity of the ambient photon field to the propagation of the gamma-rays. The spectral energy distribution appears strongly attenuated in a wide band (50 GeV - 50 TeV) due to local absorption. These spectral features should be detectable by an instrument like MAGIC through exposures integrated along several periastron passages.2007-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfChristiansen, Hugo., Romero, Gustavo E. & Orellana, Mariana D. (2007). High-energy gamma-ray production in microquasars. Sociedad Brasileira Fisica. Brazilian Journal Of Physics; 37; 2B; 545-5481678-4448http://ref.scielo.org/gsfhzhhttp://hdl.handle.net/11336/22323https://rid.unrn.edu.ar/jspui/handle/20.500.12049/2826http://dx.doi.org/10.1590/S0103-97332007000400012spa37Brazilian Journal Of Physicsinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/4.0/reponame:RID-UNRN (UNRN)instname:Universidad Nacional de Río Negro2024-05-10T11:50:49Zoai:rid.unrn.edu.ar:20.500.12049/2826instacron:UNRNInstitucionalhttps://rid.unrn.edu.ar/jspui/Universidad públicaNo correspondehttps://rid.unrn.edu.ar/oai/snrdrid@unrn.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:43692024-05-10 11:50:50.025RID-UNRN (UNRN) - Universidad Nacional de Río Negrofalse
dc.title.none.fl_str_mv High-energy gamma-ray production in microquasars
title High-energy gamma-ray production in microquasars
spellingShingle High-energy gamma-ray production in microquasars
Christiansen, Hugo
Ciencias Físicas
Microquasars
Gamma rays
Hadronic Models
Binary Systems
Ciencias Físicas
title_short High-energy gamma-ray production in microquasars
title_full High-energy gamma-ray production in microquasars
title_fullStr High-energy gamma-ray production in microquasars
title_full_unstemmed High-energy gamma-ray production in microquasars
title_sort High-energy gamma-ray production in microquasars
dc.creator.none.fl_str_mv Christiansen, Hugo
Romero, Gustavo E.
Orellana, Mariana Dominga
author Christiansen, Hugo
author_facet Christiansen, Hugo
Romero, Gustavo E.
Orellana, Mariana Dominga
author_role author
author2 Romero, Gustavo E.
Orellana, Mariana Dominga
author2_role author
author
dc.subject.none.fl_str_mv Ciencias Físicas
Microquasars
Gamma rays
Hadronic Models
Binary Systems
Ciencias Físicas
topic Ciencias Físicas
Microquasars
Gamma rays
Hadronic Models
Binary Systems
Ciencias Físicas
description Fil: Christiansen, Hugo. Universidade Estadual Do Ceara; Brasil
publishDate 2007
dc.date.none.fl_str_mv 2007-06
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv Christiansen, Hugo., Romero, Gustavo E. & Orellana, Mariana D. (2007). High-energy gamma-ray production in microquasars. Sociedad Brasileira Fisica. Brazilian Journal Of Physics; 37; 2B; 545-548
1678-4448
http://ref.scielo.org/gsfhzh
http://hdl.handle.net/11336/22323
https://rid.unrn.edu.ar/jspui/handle/20.500.12049/2826
http://dx.doi.org/10.1590/S0103-97332007000400012
identifier_str_mv Christiansen, Hugo., Romero, Gustavo E. & Orellana, Mariana D. (2007). High-energy gamma-ray production in microquasars. Sociedad Brasileira Fisica. Brazilian Journal Of Physics; 37; 2B; 545-548
1678-4448
url http://ref.scielo.org/gsfhzh
http://hdl.handle.net/11336/22323
https://rid.unrn.edu.ar/jspui/handle/20.500.12049/2826
http://dx.doi.org/10.1590/S0103-97332007000400012
dc.language.none.fl_str_mv spa
language spa
dc.relation.none.fl_str_mv 37
Brazilian Journal Of Physics
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/4.0/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/4.0/
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:RID-UNRN (UNRN)
instname:Universidad Nacional de Río Negro
instname_str Universidad Nacional de Río Negro
reponame_str RID-UNRN (UNRN)
collection RID-UNRN (UNRN)
repository.name.fl_str_mv RID-UNRN (UNRN) - Universidad Nacional de Río Negro
repository.mail.fl_str_mv rid@unrn.edu.ar
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score 15,812429

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