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Long-Term Polarization Changes of 88 Her

Published online by Cambridge University Press:  23 September 2016

J. Arsenijević ,
S. Jankov  and
G. Djurašević
J. Arsenijević
Affiliation:
Astronomical Observatory, Volgina 7, 11050 Beograd, Yugoslavia
S. Jankov
Affiliation:
Astronomical Observatory, Volgina 7, 11050 Beograd, Yugoslavia
G. Djurašević
Affiliation:
Astronomical Observatory, Volgina 7, 11050 Beograd, Yugoslavia

Abstract

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Linear optical polarization of 88 Her has been measured in V spectral region during the period 1974–1985. The mean annual values of the intrinsic polarization parameters are presented. The polarization percentage changes from 0.15%(1976) to 0.56%(1979). Small values of the polarization percentage correspond to the period when the envelope effect is negligible. The maximum of polarization percentage has been found during the early period of strong shell phase. The polarization position angle varies between 53 and 83 degrees.

Type
III. The Circumstellar Gas
Information
International Astronomical Union Colloquium , Volume 92: Physics of Be Stars , August 1987 , pp. 200 - 201
Copyright
Copyright © Cambridge University Press 1987

References

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