Radio continuum and X-ray properties of the coronae of RS Canum Venaticorum and related active binary systems

Details Radio continuum and X-ray properties of the coronae of RS Canum Venaticorum and related active binary systems Radio continuum and X-ray properties of the coronae of RS Canum Venaticorum and related active binary systems

Sep 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992apjs...82..311d&link_type=abstract

Astrophysical Journal Supplement Series (ISSN 0067-0049), vol. 82, no. 1, Sept. 1992, p. 311-321.

Astronomy and Astrophysics

Astrophysics

58

Binary Stars, Radio Emission, Stellar Coronas, X Ray Stars, Astronomical Polarimetry, Circular Polarization, Very Large Array (Vla)

Scientific paper

Data from circular polarization measurements are reported which yield radio-continuum and X-ray characterizations of the coronae of active binaries including RS CVn. The circular polarization measurements are taken at 6 cm for 28 binary systems detected at flux densities of more than 0.7 mJy, and the data are examined in conjunction with those by Drake et al. (1989). Optical positions are derived for 8 RS CVn objects, three previous detections are confirmed, and seven sources are shown to have circular polarization at levels of 2-13 percent. A total of 49 X-ray sources are confirmed in a total of 190 positions, and the correlation between X-ray and radio emissions is analyzed. No observational evidence exists to support the notion that radio and X-ray emissions are due to nonthermal electrons, and the data provide evidence for and against thermal gyrosynchrotron radio emission.

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