A model for gamma-ray sources in the galactic halo

Autores
Vila, Gabriela Soledad; Romero, Gustavo Esteban
Año de publicación
2007
Idioma
inglés
Tipo de recurso
documento de conferencia
Estado
versión publicada
Descripción
Among the galactic gamma-ray sources detected by the EGRET instrument there exists a group located at high galactic latitudes, distributed as a halo around the galactic centre. These sources are X-ray quiet with soft spectra at gamma-rays. Their variability on short timescales indicates the presence of a compact object. In this work we present a model for gamma-ray halo sources based on hadronic processes in the jet of a low-mass microquasar. Several interaction mechanisms between relativistic protons and local fields are taken into account. We also estimate the contribution to the spectrum of primary leptons. Finally, we compare our results with the general properties of the halo gamma-ray sources and make some predictions for the forthcoming satellite-borne gamma-ray telescopes.
Fil: 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
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
50° Reunión de la Asociación Argentina de Astronomía
Malargüe
Argentina
Asociación Argentina de Astronomía
Materia
Gamma-rays
Galactic halo
EGRET instrument
Microquasars
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:11336/230432
Acceder
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network_name_str CONICET Digital (CONICET)
spelling A model for gamma-ray sources in the galactic haloVila, Gabriela SoledadRomero, Gustavo EstebanGamma-raysGalactic haloEGRET instrumentMicroquasarshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Among the galactic gamma-ray sources detected by the EGRET instrument there exists a group located at high galactic latitudes, distributed as a halo around the galactic centre. These sources are X-ray quiet with soft spectra at gamma-rays. Their variability on short timescales indicates the presence of a compact object. In this work we present a model for gamma-ray halo sources based on hadronic processes in the jet of a low-mass microquasar. Several interaction mechanisms between relativistic protons and local fields are taken into account. We also estimate the contribution to the spectrum of primary leptons. Finally, we compare our results with the general properties of the halo gamma-ray sources and make some predictions for the forthcoming satellite-borne gamma-ray telescopes.Fil: 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; ArgentinaFil: 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; Argentina50° Reunión de la Asociación Argentina de AstronomíaMalargüeArgentinaAsociación Argentina de AstronomíaAsociación Argentina de Astronomía2007info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectReuniónJournalhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/230432A model for gamma-ray sources in the galactic halo; 50° Reunión de la Asociación Argentina de Astronomía; Malargüe; Argentina; 2007; 323-3260571-32851669-9521CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.astronomiaargentina.org.ar/uploads/docs/baaa_50.pdfinfo:eu-repo/semantics/altIdentifier/url/http://astronomiaargentina.fcaglp.unlp.edu.ar/b50/2007BAAA...50..323V.pdfinfo:eu-repo/semantics/altIdentifier/url/https://ui.adsabs.harvard.edu/abs/2007BAAA...50..323V/abstractNacionalinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:34:13Zoai:ri.conicet.gov.ar:11336/230432instacron: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 09:34:14.144CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv A model for gamma-ray sources in the galactic halo
title A model for gamma-ray sources in the galactic halo
spellingShingle A model for gamma-ray sources in the galactic halo
Vila, Gabriela Soledad
Gamma-rays
Galactic halo
EGRET instrument
Microquasars
title_short A model for gamma-ray sources in the galactic halo
title_full A model for gamma-ray sources in the galactic halo
title_fullStr A model for gamma-ray sources in the galactic halo
title_full_unstemmed A model for gamma-ray sources in the galactic halo
title_sort A model for gamma-ray sources in the galactic halo
dc.creator.none.fl_str_mv Vila, Gabriela Soledad
Romero, Gustavo Esteban
author Vila, Gabriela Soledad
author_facet Vila, Gabriela Soledad
Romero, Gustavo Esteban
author_role author
author2 Romero, Gustavo Esteban
author2_role author
dc.subject.none.fl_str_mv Gamma-rays
Galactic halo
EGRET instrument
Microquasars
topic Gamma-rays
Galactic halo
EGRET instrument
Microquasars
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Among the galactic gamma-ray sources detected by the EGRET instrument there exists a group located at high galactic latitudes, distributed as a halo around the galactic centre. These sources are X-ray quiet with soft spectra at gamma-rays. Their variability on short timescales indicates the presence of a compact object. In this work we present a model for gamma-ray halo sources based on hadronic processes in the jet of a low-mass microquasar. Several interaction mechanisms between relativistic protons and local fields are taken into account. We also estimate the contribution to the spectrum of primary leptons. Finally, we compare our results with the general properties of the halo gamma-ray sources and make some predictions for the forthcoming satellite-borne gamma-ray telescopes.
Fil: 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
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
50° Reunión de la Asociación Argentina de Astronomía
Malargüe
Argentina
Asociación Argentina de Astronomía
description Among the galactic gamma-ray sources detected by the EGRET instrument there exists a group located at high galactic latitudes, distributed as a halo around the galactic centre. These sources are X-ray quiet with soft spectra at gamma-rays. Their variability on short timescales indicates the presence of a compact object. In this work we present a model for gamma-ray halo sources based on hadronic processes in the jet of a low-mass microquasar. Several interaction mechanisms between relativistic protons and local fields are taken into account. We also estimate the contribution to the spectrum of primary leptons. Finally, we compare our results with the general properties of the halo gamma-ray sources and make some predictions for the forthcoming satellite-borne gamma-ray telescopes.
publishDate 2007
dc.date.none.fl_str_mv 2007
dc.type.none.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/conferenceObject
Reunión
Journal
http://purl.org/coar/resource_type/c_5794
info:ar-repo/semantics/documentoDeConferencia
status_str publishedVersion
format conferenceObject
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/230432
A model for gamma-ray sources in the galactic halo; 50° Reunión de la Asociación Argentina de Astronomía; Malargüe; Argentina; 2007; 323-326
0571-3285
1669-9521
CONICET Digital
CONICET
url http://hdl.handle.net/11336/230432
identifier_str_mv A model for gamma-ray sources in the galactic halo; 50° Reunión de la Asociación Argentina de Astronomía; Malargüe; Argentina; 2007; 323-326
0571-3285
1669-9521
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://www.astronomiaargentina.org.ar/uploads/docs/baaa_50.pdf
info:eu-repo/semantics/altIdentifier/url/http://astronomiaargentina.fcaglp.unlp.edu.ar/b50/2007BAAA...50..323V.pdf
info:eu-repo/semantics/altIdentifier/url/https://ui.adsabs.harvard.edu/abs/2007BAAA...50..323V/abstract
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
dc.coverage.none.fl_str_mv Nacional
dc.publisher.none.fl_str_mv Asociación Argentina de Astronomía
publisher.none.fl_str_mv Asociación Argentina de Astronomía
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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