Radio emission from FK Comae

Journal Article · Sun Feb 01 04:00:00 EST 1987 · Astrophys. J.; (United States)

DOI:https://doi.org/10.1086/164966· OSTI ID:6465559

Hughes, V A; Mclean, B J

Radio detection of the rapidly rotating, variable star FK Comae is reported. Observations were made at 20 cm and 6 cm, and 7 days later at 6 cm and 2 cm. The flux density at 6 cm on both days was essentially the same, and it is believed that the flux densities at the three wavelengths determine the spectrum. It is argued, on the basis of the radio spectrum and the observed X-ray flux, that the radiation cannot be thermal, and probably arises from the acceleration of electrons in coronal streamers. A model is derived for this nonthermal component. 27 references.

• Research Organization: Queen's Univ., Canada; Space Telescope Science Institute, Baltimore, MD
• OSTI ID: 6465559
• Journal Information: Astrophys. J.; (United States), Journal Name: Astrophys. J.; (United States) Vol. 313; ISSN ASJOA
• Country of Publication: United States
• Language: English

Related Subjects

640102* -- Astrophysics & Cosmology-- Stars & Quasi-Stellar
Radio & X-Ray Sources
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ACCELERATION
ELECTROMAGNETIC RADIATION
ELECTRONS
ELEMENTARY PARTICLES
EMISSION SPECTRA
FERMIONS
FLUX DENSITY
LEPTONS
MATHEMATICAL MODELS
RADIANT FLUX DENSITY
RADIATIONS
RADIOWAVE RADIATION
SPECTRA
STAR MODELS
STARS
VARIABLE STARS
X-RAY SPECTRA