U, B, V photometry of the 'polar' an Ursae Majoris

Details U, B, V photometry of the 'polar' an Ursae Majoris U, B, V photometry of the 'polar' an Ursae Majoris

Jun 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981sval....7..166a&link_type=abstract

(Pis'ma v Astronomicheskii Zhurnal, vol. 7, May 1981, p. 300-303.) Soviet Astronomy Letters, vol. 7, May-June 1981, p. 166-168.

Astronomy and Astrophysics

Astronomy

2

Binary Stars, Light Curve, Stellar Mass Accretion, Stellar Spectrophotometry, Ubv Spectra, White Dwarf Stars, Brightness Distribution, Circular Polarization, Elliptical Galaxies, Linear Polarization

Scientific paper

Photoelectric U, B, and V observations of the polarized star AN UMa were made when the system was in two different states of mean optical brightness, and results are interpreted on the premise that the rate of accretion into the highly magnetized white dwarf is variable. The white and red dwarfs in the system have masses of about 1.0 and 0.25 solar mass, respectively, and the components are separated by about 6 x 10 to the 10th cm. Most optical emission comes from a hot spot located on the surface itself or in the accretion structure surrounding the white dwarf.

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