A young radio-emitting magnetic B star in the Rho Ophiuchi cloud

Abstract

view Abstract Citations (106) References (68) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS A Young Radio-emitting Magnetic B Star in the Rho Ophiuchi Cloud Andre, Philippe ; Montmerle, Thierry ; Feigelson, Eric D. ; Stine, Peter C. ; Klein, Karl-Ludwig Abstract As part of a VLA study of the continuum radio sources associated with the ρ Oph molecular cloud, the authors report the first detection of circular polarization from a young stellar object, the luminous infrared source S1. This object coincides with an embedded B star having an unusually high X-ray luminosity. The presence of a weak, compact H II region confirms the early type and suggests a very young star. The circularly polarized radio emission may be optically thin gyrosynchrotron radiation from energetic electrons in the outer parts of a magnetosphere similar to that of chemically peculiar magnetic stars. Such a magnetosphere also features a coronal region which would explain the X-ray emission as well. Publication: The Astrophysical Journal Pub Date: December 1988 DOI: 10.1086/166979 Bibcode: 1988ApJ...335..940A Keywords: B Stars; Magnetic Stars; Ophiuchi Clouds; Pre-Main Sequence Stars; Radio Emission; Very Large Array (Vla); Electron Energy; Energetic Particles; Halos; Stellar Envelopes; Stellar Evolution; Stellar Magnetospheres; Astrophysics; STARS: PRE--MAIN-SEQUENCE; STARS: RADIO RADIATION; STARS: MAGNETIC; STARS: X-RAYS full text sources ADS | data products SIMBAD (5)