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Magnetodynamic Phenomena in the Solar and Stellar Outer Atmospheres

  • Yutaka Uchida

Abstract

Magnetic effects causing anomalous heating and drastic flarings in the atmospheres of various types of stars are discussed. The best studied examples of these magnetic effects with spatially resolved observations are those in the case of the Sun, but no simple application of the solar knowledge to the stellar cases is allowed, since there are generally very large differences in the physical conditions between the Sun and other types of stars. We examine possible effects of the magnetic field in the respective situations of several types of stars which show X-ray and radio emissions indicating the presence of such activities, and it is concluded that the magnetic field may be playing important roles in producing anomalous heating and drastic flarings also in those stars having very different physical conditions, in ways seemingly very different from, but intrinsically closely related to, those in the case of the Sun.

Keywords

Solar Phys Magnetic Reconnection Stellar Surface Alfven Wave Magnetic Field Configuration 
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© D. Reidel Publishing Company 1986

Authors and Affiliations

  • Yutaka Uchida
    • 1
  1. 1.Tokyo Astronomical ObservatoryUniversity of TokyoMitaka, TokyoJapan

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