Evento
Radio behavior of four southern non-thermal O-type stars
Colaboradores:
St.-Louis, Nicole; Moffat, Anthony F. J.
Tipo del evento:
Workshop
Nombre del evento:
Massive Stars in Interacting Binaries
Fecha del evento:
12/2007
Institución Organizadora:
Universite Laval;
Título de la revista:
ASP Conference Series
Editorial:
Astronomical Society of the Pacific
ISBN:
9781583812358
Idioma:
Inglés
Clasificación temática:
Resumen
We have conducted high resolution continuum observations at 1.4 and 2.4 GHz with the Australia Telescope Compact Array, towards the four southern Of stars: CD-47 4551, HD 93129A, HD 124314, and HD 150136. All stars have been detected at the two frequencies. HD 93129A - the only O2 I star catalogued so far, and in a double system -, has also been observed at 17.8 and 24.5 GHz. Its radio spectrum, complemented with previous observations at higher frequencies, is analyzed here. The interpretation yields the estimate of its mass loss rate, and a non-thermal spectral index of radiation coming from a putative colliding wind region. The synchrotron and corresponding inverse Compton luminosities are derived.
Palabras clave:
massive stars
,
non-thermal emission
Archivos asociados
Licencia
Identificadores
Colecciones
Eventos(IAR)
Eventos de INST.ARG.DE RADIOASTRONOMIA (I)
Eventos de INST.ARG.DE RADIOASTRONOMIA (I)
Citación
Radio behavior of four southern non-thermal O-type stars; Massive Stars in Interacting Binaries; Sacacomie; Canadá; 2007; 179-186
Compartir