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Long-term Polarimetric Activity of the Cool Supergiant μ Cephei

Published online by Cambridge University Press:  12 April 2016

J. Arsenijević  and
S. Jankov
J. Arsenijević
Affiliation:
Astronomical Observatory, Beograd, Yugoslavia
S. Jankov
Affiliation:
Astronomical Observatory, Beograd, Yugoslavia

Abstract

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The intrinsic polarisation parameters P, θ, Q and U of the star μ Cep, in the V spectral region during the period 1979-1989, are presented. The data were obtained from the Belgrade polarimetric observational program. The polarization percentage of the star exhibits change is of about 2.5% during this interval and the position angles change by about 90 degrees. These very large long-term changes of polarization parameters are discussed briefly.

Type
Part IV Stellar activity
Information
International Astronomical Union Colloquium , Volume 130: The Sun and Cool Stars: activity, magnetism, dynamos , 1991 , pp. 424 - 426
Copyright
Copyright © Springer-Verlag 1991

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