The unique object KR Aurigae

Details The unique object KR Aurigae The unique object KR Aurigae

Jun 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977sval....3..143p&link_type=abstract

(Pis'ma v Astronomicheskii Zhurnal, vol. 3, June 1977, p. 271, 272.) Soviet Astronomy Letters, vol. 3, May-June 1977, p. 143, 14

Astronomy and Astrophysics

Astronomy

3

Stellar Spectrophotometry, Variable Stars, Visual Photometry, Black Holes (Astronomy), H Beta Line, H Gamma Line, Polarization Characteristics, Stellar Mass Accretion

Scientific paper

Six spectrograms of the peculiar variable star KR Aurigae are evaluated which were obtained over the wavelength range from 3700 to 5000 A with a dispersion of 92 A/mm. The H-beta line profile is found to provide evidence that material is being accreted by the star at a mean velocity of 3200 km/s. Polarization measurements and UBV estimates are reported which indicate that KR Aur might be a black hole. The distance of KR Aur is estimated to be 300 + or - 150 pc in terms of the black-hole model of Bisnovatyi-Kogan and Ruzmaikin (1974).

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