Magnetodynamical processes in interacting magnetospheres of RS CVn binaries
Abstract
Magnetodynamical processes in RS CVn binaries are discussed in the scheme of the active longitude belt picture (Uchida and Sakurai, 1983) in which the photometric wave is due to a number of spot repairs which emerge, drift across, and are submerged in the active longitudinal belt on the K-star. The formation of the corona and the origin of flares in these close binary systems having starspots are interpreted in terms of the reconnections of the magnetic flux tubes of the companion star with the emerging and submerging pairs of spots on the K star. The injection of the hot plasma into the large-scale pole-to-spot connections is required to explain the extended corona with large emission measure, and this is attributed to the sweeping-pinch mechanism (Uchida and Shibata, 1984) associated with the relaxation of the toroidal component in the twisted magnetic flux tubes which emerge and reconnect with the flux tube connecting pole and spots.
- Publication:
-
Unstable Current Systems and Plasma Instabilities in Astrophysics
- Pub Date:
- 1985
- Bibcode:
- 1985IAUS..107..281U
- Keywords:
-
- Binary Stars;
- Magnetoplasmadynamics;
- Starspots;
- Stellar Activity;
- Stellar Atmospheres;
- Stellar Magnetospheres;
- K Stars;
- Magnetic Field Configurations;
- Stellar Coronas;
- Stellar Flares;
- Stellar Magnetic Fields;
- Astrophysics