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Linear Polarization and Magnetic Fields in Cool Stars

Published online by Cambridge University Press:  12 April 2016

J. Huovelin  and
S. H. Saar
J. Huovelin
Affiliation:
Observatory and Astrophysics Laboratory, University of Helsinki, Tähtitorninmäki, SF-00130 Helsinki, Finland
S. H. Saar
Affiliation:
Harvard-Smithsonian Center for Astrophysics, Mail Stop 58, 60 Garden Street, Cambridge, MA 02138, USA

Abstract

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Observations and theoretical models of broadband linear polarization (BLP) in cool stars are discussed. Two effects, 1) differential saturation in magnetically sensitive absorption lines and, 2) Rayleigh and Thomson scattering are considered as the possible causes of the BLP. Results of theoretical models, and comparisons with observations are summarized.

Type
Part IV Stellar activity
Information
International Astronomical Union Colloquium , Volume 130: The Sun and Cool Stars: activity, magnetism, dynamos , 1991 , pp. 420 - 423
Copyright
Copyright © Springer-Verlag 1991

References

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Huovelin, J., Saar, S.: 1991, Astrophys. J., in pressGoogle Scholar
Saar, S., Huovelin, J.: 1991, Astrophys. J., submittedGoogle Scholar