On the nature of the AGILE galactic transient sources

Context. The Italian gamma-ray satellite AGILE has recently reported the detection of some variable high-energy sources likely of galactic origin. These sources do not have any obvious counterpart at lower energies. Aims. We propose that these sources are produced in proton-dominated jets of galacti...

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Detalles Bibliográficos
Autores: Romero, Gustavo Esteban, Vila, Gabriela Soledad
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2009
País:Argentina
Institución:Consejo Nacional de Investigaciones Científicas y Técnicas
Repositorio:CONICET Digital (CONICET)
Idioma:inglés
OAI Identifier:oai:ri.conicet.gov.ar:11336/26680
Acceso en línea:http://hdl.handle.net/11336/26680
Access Level:acceso abierto
Palabra clave:X-ray binaries
Gamma rays
Radiation mechanisms
Non thermal mechanisms
https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
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oai_identifier_str oai:ri.conicet.gov.ar:11336/26680
network_acronym_str AR
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repository_id_str
spelling On the nature of the AGILE galactic transient sourcesRomero, Gustavo EstebanVila, Gabriela SoledadX-ray binariesGamma raysRadiation mechanismsNon thermal mechanismshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Context. The Italian gamma-ray satellite AGILE has recently reported the detection of some variable high-energy sources likely of galactic origin. These sources do not have any obvious counterpart at lower energies. Aims. We propose that these sources are produced in proton-dominated jets of galactic microquasars. Methods. We develop a model for microquasar jets that takes into account both primary leptons and protons and all relevant radiative processes, including secondary particle emission and gamma-ray attenuation due to pair creation in the jet. Results. We obtain spectral energy distributions that correspond to what is observed by AGILE, with most of the power concentrated between 100 MeV and 10 GeV and reaching luminosities of 1034-35 erg s-1. We make detailed spectral predictions that can be tested by the Fermi gamma-ray telescope in the immediate future. Conclusions. We conclude that hadronic jets in galactic accreting sources can be responsible for the variable unidentified gamma-ray sources detected by AGILE.Fil: Romero, Gustavo Esteban. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Instituto Argentino de Radioastronomía. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto Argentino de Radioastronomía; Argentina. Universidad Nacional de la Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Vila, Gabriela Soledad. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Instituto Argentino de Radioastronomía. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto Argentino de Radioastronomía; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaEDP Sciences2009-02info: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/11336/26680Romero, Gustavo Esteban; Vila, Gabriela Soledad; On the nature of the AGILE galactic transient sources; EDP Sciences; Astronomy and Astrophysics; 494; 3; 2-2009; 33-360004-6361CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361:200811283info:eu-repo/semantics/altIdentifier/url/https://www.aanda.org/articles/aa/abs/2009/06/aa11283-08/aa11283-08.htmlinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2024-05-08T13:33:36Zoai:ri.conicet.gov.ar:11336/26680instacron: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:34982024-05-08 13:33:36.605CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv On the nature of the AGILE galactic transient sources
title On the nature of the AGILE galactic transient sources
spellingShingle On the nature of the AGILE galactic transient sources
Romero, Gustavo Esteban
X-ray binaries
Gamma rays
Radiation mechanisms
Non thermal mechanisms
https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
title_short On the nature of the AGILE galactic transient sources
title_full On the nature of the AGILE galactic transient sources
title_fullStr On the nature of the AGILE galactic transient sources
title_full_unstemmed On the nature of the AGILE galactic transient sources
title_sort On the nature of the AGILE galactic transient sources
dc.creator.none.fl_str_mv Romero, Gustavo Esteban
Vila, Gabriela Soledad
author Romero, Gustavo Esteban
author_facet Romero, Gustavo Esteban
Vila, Gabriela Soledad
author_role author
author2 Vila, Gabriela Soledad
author2_role author
dc.subject.none.fl_str_mv X-ray binaries
Gamma rays
Radiation mechanisms
Non thermal mechanisms
https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
topic X-ray binaries
Gamma rays
Radiation mechanisms
Non thermal mechanisms
https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
description Context. The Italian gamma-ray satellite AGILE has recently reported the detection of some variable high-energy sources likely of galactic origin. These sources do not have any obvious counterpart at lower energies. Aims. We propose that these sources are produced in proton-dominated jets of galactic microquasars. Methods. We develop a model for microquasar jets that takes into account both primary leptons and protons and all relevant radiative processes, including secondary particle emission and gamma-ray attenuation due to pair creation in the jet. Results. We obtain spectral energy distributions that correspond to what is observed by AGILE, with most of the power concentrated between 100 MeV and 10 GeV and reaching luminosities of 1034-35 erg s-1. We make detailed spectral predictions that can be tested by the Fermi gamma-ray telescope in the immediate future. Conclusions. We conclude that hadronic jets in galactic accreting sources can be responsible for the variable unidentified gamma-ray sources detected by AGILE.
publishDate 2009
dc.date.none.fl_str_mv 2009-02
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/11336/26680
Romero, Gustavo Esteban; Vila, Gabriela Soledad; On the nature of the AGILE galactic transient sources; EDP Sciences; Astronomy and Astrophysics; 494; 3; 2-2009; 33-36
0004-6361
CONICET Digital
CONICET
url http://hdl.handle.net/11336/26680
identifier_str_mv Romero, Gustavo Esteban; Vila, Gabriela Soledad; On the nature of the AGILE galactic transient sources; EDP Sciences; Astronomy and Astrophysics; 494; 3; 2-2009; 33-36
0004-6361
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361:200811283
info:eu-repo/semantics/altIdentifier/url/https://www.aanda.org/articles/aa/abs/2009/06/aa11283-08/aa11283-08.html
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 EDP Sciences
publisher.none.fl_str_mv EDP Sciences
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
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 15.811543

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