Radio detection of colliding wind binaries

Autores
Benaglia, Paula; Koribalski, Bärbel; Albacete Colombo, Juan Facundo
Año de publicación
2006
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Four massive, early-type stars, three of which are confirmed binaries, have been observed with the Australia Telescope Compact Array at 1.4, 2.4, 4.8, and 8.6 GHz. The earliest star cataloged so far, HD 93129A, was also observed at 17.8 and 24.5 GHz. Here we present an analysis of the spectra as well as the structure of the stellar systems. All four spectra show clear evidence of non-thermal emission, indicative of a binary system with a colliding wind region. We discuss the magnetic field of the emitting region of HD 93129A and make predictions on the radiation at high energies. Archive X-ray observations towards the target sources are also investigated and interpreted in the light of the non-thermal emission detected.
Facultad de Ciencias Astronómicas y Geofísicas
Materia
Ciencias Astronómicas
Radio continuum: stars
Stars: early-type
Stars: individual (CD-474551,HD93129A,HD 124314,HD150136)
Stars: mass loss
Stars: winds,outflows
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/83109
Acceder
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oai_identifier_str oai:sedici.unlp.edu.ar:10915/83109
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Radio detection of colliding wind binariesBenaglia, PaulaKoribalski, BärbelAlbacete Colombo, Juan FacundoCiencias AstronómicasRadio continuum: starsStars: early-typeStars: individual (CD-474551,HD93129A,HD 124314,HD150136)Stars: mass lossStars: winds,outflowsFour massive, early-type stars, three of which are confirmed binaries, have been observed with the Australia Telescope Compact Array at 1.4, 2.4, 4.8, and 8.6 GHz. The earliest star cataloged so far, HD 93129A, was also observed at 17.8 and 24.5 GHz. Here we present an analysis of the spectra as well as the structure of the stellar systems. All four spectra show clear evidence of non-thermal emission, indicative of a binary system with a colliding wind region. We discuss the magnetic field of the emitting region of HD 93129A and make predictions on the radiation at high energies. Archive X-ray observations towards the target sources are also investigated and interpreted in the light of the non-thermal emission detected.Facultad de Ciencias Astronómicas y Geofísicas2006info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf50-63http://sedici.unlp.edu.ar/handle/10915/83109enginfo:eu-repo/semantics/altIdentifier/issn/1448-6083info:eu-repo/semantics/altIdentifier/doi/10.1071/AS05039info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:15:45Zoai:sedici.unlp.edu.ar:10915/83109Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:15:46.133SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Radio detection of colliding wind binaries
title Radio detection of colliding wind binaries
spellingShingle Radio detection of colliding wind binaries
Benaglia, Paula
Ciencias Astronómicas
Radio continuum: stars
Stars: early-type
Stars: individual (CD-474551,HD93129A,HD 124314,HD150136)
Stars: mass loss
Stars: winds,outflows
title_short Radio detection of colliding wind binaries
title_full Radio detection of colliding wind binaries
title_fullStr Radio detection of colliding wind binaries
title_full_unstemmed Radio detection of colliding wind binaries
title_sort Radio detection of colliding wind binaries
dc.creator.none.fl_str_mv Benaglia, Paula
Koribalski, Bärbel
Albacete Colombo, Juan Facundo
author Benaglia, Paula
author_facet Benaglia, Paula
Koribalski, Bärbel
Albacete Colombo, Juan Facundo
author_role author
author2 Koribalski, Bärbel
Albacete Colombo, Juan Facundo
author2_role author
author
dc.subject.none.fl_str_mv Ciencias Astronómicas
Radio continuum: stars
Stars: early-type
Stars: individual (CD-474551,HD93129A,HD 124314,HD150136)
Stars: mass loss
Stars: winds,outflows
topic Ciencias Astronómicas
Radio continuum: stars
Stars: early-type
Stars: individual (CD-474551,HD93129A,HD 124314,HD150136)
Stars: mass loss
Stars: winds,outflows
dc.description.none.fl_txt_mv Four massive, early-type stars, three of which are confirmed binaries, have been observed with the Australia Telescope Compact Array at 1.4, 2.4, 4.8, and 8.6 GHz. The earliest star cataloged so far, HD 93129A, was also observed at 17.8 and 24.5 GHz. Here we present an analysis of the spectra as well as the structure of the stellar systems. All four spectra show clear evidence of non-thermal emission, indicative of a binary system with a colliding wind region. We discuss the magnetic field of the emitting region of HD 93129A and make predictions on the radiation at high energies. Archive X-ray observations towards the target sources are also investigated and interpreted in the light of the non-thermal emission detected.
Facultad de Ciencias Astronómicas y Geofísicas
description Four massive, early-type stars, three of which are confirmed binaries, have been observed with the Australia Telescope Compact Array at 1.4, 2.4, 4.8, and 8.6 GHz. The earliest star cataloged so far, HD 93129A, was also observed at 17.8 and 24.5 GHz. Here we present an analysis of the spectra as well as the structure of the stellar systems. All four spectra show clear evidence of non-thermal emission, indicative of a binary system with a colliding wind region. We discuss the magnetic field of the emitting region of HD 93129A and make predictions on the radiation at high energies. Archive X-ray observations towards the target sources are also investigated and interpreted in the light of the non-thermal emission detected.
publishDate 2006
dc.date.none.fl_str_mv 2006
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
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://sedici.unlp.edu.ar/handle/10915/83109
url http://sedici.unlp.edu.ar/handle/10915/83109
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/1448-6083
info:eu-repo/semantics/altIdentifier/doi/10.1071/AS05039
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
50-63
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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score 13.070432

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