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Stellar X-ray and Radio Activities and Coronal Magnetic Field

Published online by Cambridge University Press:  30 March 2016

Yutaka Uchida
Yutaka Uchida*
Affiliation:
Tokyo Astronomical Observatory, University of Tokyo

Abstract

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Activities due to the magnetic effects in the stellar atmospheres are discussed with a special emphasis on the enhanced X-rays and radio activities in RS CVn binaries. Enhanced activities in these close binary systems are proposed to be due to an enhanced production of the twist of the subphotospheric magnetic flux tubes by the large differential rotation in radius, created between the inertially rotating core and more or less synchronously rotating envelope. The magnetic twist of the emerged flux tubes in the “active-longitude-belt” will be dynamically released into inter-star flux tubes together with the driven-out mass heated in the events of magnetic reconnections which are mediated by the magnetic fields of the companion star.

Type
Joint Discussions
Information
Highlights of Astronomy , Volume 7: Highlights of Astronomy. As presented at the XIXth General Assembly of the IAU, 1985 , 1986 , pp. 461 - 465
Copyright
Copyright © Reidel 1986

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