Artículos de revistas
Radio Detection of Colliding Wind Binaries
Fecha
2006-01Registro en:
Benaglia, Paula; Koribalski, Bärbel Silvia; Albacete Colombo, Juan Facundo; Radio Detection of Colliding Wind Binaries
; Cambridge University Press; Publications Of The Astronomical Society Of Australia; 23; 1; 1-2006; 50-63
1323-3580
CONICET Digital
CONICET
Autor
Benaglia, Paula
Koribalski, Bärbel Silvia
Albacete Colombo, Juan Facundo
Resumen
Four massive, early-type stars, three of which are confirmed binaries, have been observed with theAustralia 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 showclear 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.