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Eruptive Phenomena as a Source of the Observed Variations of Intrinsic Polarization in Long Period and T Tau Variables

Published online by Cambridge University Press:  12 April 2016

M. Sole  and
G. Strazzulla
M. Sole
Affiliation:
Department of Astronomy and Astrophysics, Charles University, Prague, Czechoslovakia
G. Strazzulla
Affiliation:
Department of Astronomy and Astrophysics, Charles University, Prague, Czechoslovakia

Abstract

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The correlation between the rapid rise of intrinsic polarization, increasing U-B and enhanced equivalent width of Balmer, H and K emission lines is interpreted as a consequence of the activation of colour centres in circumstellar silicate dust by X/UV photons from flares. The temperature dependence of bleaching is discussed and the number of centres producing polarization changes is estimated.

Type
Session III: Observed Activity in Related Objects
Information
International Astronomical Union Colloquium , Volume 71: Activity in Red-Dwarf Stars , 1983 , pp. 515 - 518
Copyright
Copyright © Reidel 1983

References

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