The linear polarization of VV Cephei into the 1977 eclipse totality

Details The linear polarization of VV Cephei into the 1977 eclipse totality The linear polarization of VV Cephei into the 1977 eclipse totality

Feb 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978aj.....83..183k&link_type=abstract

Astronomical Journal, vol. 83, Feb. 1978, p. 183-187.

Astronomy and Astrophysics

Astronomy

4

Eclipsing Binary Stars, Linear Polarization, Polarimetry, Polarized Light, Supergiant Stars, B Stars, Color, M Stars

Scientific paper

Numerous filtered measures of the linear polarization of the supergiant eclipsing system VV Cep are presented. The observed polarization is shown to be variable on a long time scale. Limiting interstellar polarizations are evaluated. A modulation in the intrinsic red polarization is shown to be 180 deg out of phase with an independently observed light modulation in a cycle of about 150 days. Very small polarization decreases begin during the ingress phase of the body eclipse, but observations are few during this interval. It is shown that the red, green, and blue polarizations decrease after totality. Possible causes of this decrease are discussed.

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