Radio detection of colliding wind binaries

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 wel...

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Autores principales: Benaglia, Paula, Koribalski, Bärbel, Albacete Colombo, Juan Facundo
Formato: Articulo
Lenguaje:Inglés
Publicado: 2006
Materias:
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/83109
Aporte de:
id I19-R120-10915-83109
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Astronómicas
Radio continuum: stars
Stars: early-type
Stars: individual (CD-474551,HD93129A,HD 124314,HD150136)
Stars: mass loss
Stars: winds,outflows
spellingShingle Ciencias Astronómicas
Radio continuum: stars
Stars: early-type
Stars: individual (CD-474551,HD93129A,HD 124314,HD150136)
Stars: mass loss
Stars: winds,outflows
Benaglia, Paula
Koribalski, Bärbel
Albacete Colombo, Juan Facundo
Radio detection of colliding wind binaries
topic_facet Ciencias Astronómicas
Radio continuum: stars
Stars: early-type
Stars: individual (CD-474551,HD93129A,HD 124314,HD150136)
Stars: mass loss
Stars: winds,outflows
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.
format Articulo
Articulo
author Benaglia, Paula
Koribalski, Bärbel
Albacete Colombo, Juan Facundo
author_facet Benaglia, Paula
Koribalski, Bärbel
Albacete Colombo, Juan Facundo
author_sort Benaglia, Paula
title Radio detection of colliding wind binaries
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
publishDate 2006
url http://sedici.unlp.edu.ar/handle/10915/83109
work_keys_str_mv AT benagliapaula radiodetectionofcollidingwindbinaries
AT koribalskibarbel radiodetectionofcollidingwindbinaries
AT albacetecolombojuanfacundo radiodetectionofcollidingwindbinaries
bdutipo_str Repositorios
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