Gamma-ray emission from selected Wolf-Rayet binaries

Autores
Benaglia, Paula; Romero, Gustavo Esteban
Año de publicación
2003
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
In the colliding wind region of early-type binaries, electrons can be accelerated up to relativistic energies, as demonstrated by the detection of non-thermal radio emission from several WR+OB systems. The particle acceleration region is exposed to strong photon fields, and inverse-Compton cooling of the electrons could result in a substantial high-energy non-thermal flux. We present here preliminary results of a study of the binaries WR 140, WR 146, and WR 147 in the light of recent radio and ã-ray observations. We show that under reasonable assumptions WR 140 can produce the ã-ray flux from the GRO-EGRET source 3EG J 2022+4317. WR 146 and WR 147 are below the detection threshold.
Fil: Benaglia, Paula. 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
Materia
Wolf rayet stars
Gamma ray sources
Binaries
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:11336/29926
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Gamma-ray emission from selected Wolf-Rayet binariesBenaglia, PaulaRomero, Gustavo EstebanWolf rayet starsGamma ray sourcesBinarieshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1In the colliding wind region of early-type binaries, electrons can be accelerated up to relativistic energies, as demonstrated by the detection of non-thermal radio emission from several WR+OB systems. The particle acceleration region is exposed to strong photon fields, and inverse-Compton cooling of the electrons could result in a substantial high-energy non-thermal flux. We present here preliminary results of a study of the binaries WR 140, WR 146, and WR 147 in the light of recent radio and ã-ray observations. We show that under reasonable assumptions WR 140 can produce the ã-ray flux from the GRO-EGRET source 3EG J 2022+4317. WR 146 and WR 147 are below the detection threshold.Fil: Benaglia, Paula. 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; ArgentinaEDP Sciences2003-12info: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/11336/29926Benaglia, Paula; Romero, Gustavo Esteban; Gamma-ray emission from selected Wolf-Rayet binaries; EDP Sciences; Astronomy and Astrophysics; 399; 12-2003; 1121-11340004-6361CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361:20021854info:eu-repo/semantics/altIdentifier/url/https://www.aanda.org/articles/aa/abs/2003/09/aa2691/aa2691.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 Técnicas2025-09-03T10:11:50Zoai:ri.conicet.gov.ar:11336/29926instacron: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:34982025-09-03 10:11:50.904CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Gamma-ray emission from selected Wolf-Rayet binaries
title Gamma-ray emission from selected Wolf-Rayet binaries
spellingShingle Gamma-ray emission from selected Wolf-Rayet binaries
Benaglia, Paula
Wolf rayet stars
Gamma ray sources
Binaries
title_short Gamma-ray emission from selected Wolf-Rayet binaries
title_full Gamma-ray emission from selected Wolf-Rayet binaries
title_fullStr Gamma-ray emission from selected Wolf-Rayet binaries
title_full_unstemmed Gamma-ray emission from selected Wolf-Rayet binaries
title_sort Gamma-ray emission from selected Wolf-Rayet binaries
dc.creator.none.fl_str_mv Benaglia, Paula
Romero, Gustavo Esteban
author Benaglia, Paula
author_facet Benaglia, Paula
Romero, Gustavo Esteban
author_role author
author2 Romero, Gustavo Esteban
author2_role author
dc.subject.none.fl_str_mv Wolf rayet stars
Gamma ray sources
Binaries
topic Wolf rayet stars
Gamma ray sources
Binaries
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv In the colliding wind region of early-type binaries, electrons can be accelerated up to relativistic energies, as demonstrated by the detection of non-thermal radio emission from several WR+OB systems. The particle acceleration region is exposed to strong photon fields, and inverse-Compton cooling of the electrons could result in a substantial high-energy non-thermal flux. We present here preliminary results of a study of the binaries WR 140, WR 146, and WR 147 in the light of recent radio and ã-ray observations. We show that under reasonable assumptions WR 140 can produce the ã-ray flux from the GRO-EGRET source 3EG J 2022+4317. WR 146 and WR 147 are below the detection threshold.
Fil: Benaglia, Paula. 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
description In the colliding wind region of early-type binaries, electrons can be accelerated up to relativistic energies, as demonstrated by the detection of non-thermal radio emission from several WR+OB systems. The particle acceleration region is exposed to strong photon fields, and inverse-Compton cooling of the electrons could result in a substantial high-energy non-thermal flux. We present here preliminary results of a study of the binaries WR 140, WR 146, and WR 147 in the light of recent radio and ã-ray observations. We show that under reasonable assumptions WR 140 can produce the ã-ray flux from the GRO-EGRET source 3EG J 2022+4317. WR 146 and WR 147 are below the detection threshold.
publishDate 2003
dc.date.none.fl_str_mv 2003-12
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/11336/29926
Benaglia, Paula; Romero, Gustavo Esteban; Gamma-ray emission from selected Wolf-Rayet binaries; EDP Sciences; Astronomy and Astrophysics; 399; 12-2003; 1121-1134
0004-6361
CONICET Digital
CONICET
url http://hdl.handle.net/11336/29926
identifier_str_mv Benaglia, Paula; Romero, Gustavo Esteban; Gamma-ray emission from selected Wolf-Rayet binaries; EDP Sciences; Astronomy and Astrophysics; 399; 12-2003; 1121-1134
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/10.1051/0004-6361:20021854
info:eu-repo/semantics/altIdentifier/url/https://www.aanda.org/articles/aa/abs/2003/09/aa2691/aa2691.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
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 13.13397

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