Variable polarization observations of the early-type supergiants Kappa CAS and Alpha Cam

Details Variable polarization observations of the early-type supergiants Kappa CAS and Alpha Cam Variable polarization observations of the early-type supergiants Kappa CAS and Alpha Cam

Aug 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984aj.....89.1219h&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 89, Aug. 1984, p. 1219-1228.

Astronomy and Astrophysics

Astronomy

26

Early Stars, Polarimetry, Stellar Radiation, Supergiant Stars, Variable Stars, Linear Polarization, Stellar Mass Ejection

Scientific paper

The optical continuum (B-band) linear polarization of the early-type supergiants κ Cas and α Cam was intensively monitored over the last two quarters of 1978 and, to a lesser extent, in 1976. Ordered but nonperiodic polarization changes were detected in both stars. These changes are manifestation of variable asymmetric mass loss in the stars' extended atmospheres. They may originate in aperiodic nonradial stellar pulsations.

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