The 1975 eclipse of AZ Cassiopeiae

Details The 1975 eclipse of AZ Cassiopeiae The 1975 eclipse of AZ Cassiopeiae

Jun 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982acaps...2..138l&link_type=abstract

(Acta Astrophysica Sinica, vol. 2, 1982, p. 138-143.) Chinese Astronomy and Astrophysics, vol. 6, June 1982, p. 177-180. Transl

Astronomy and Astrophysics

Astrophysics

Eclipsing Binary Stars, Stellar Spectrophotometry, Supergiant Stars, B Stars, Electrophotometry, Light Curve, Orbital Elements, Stellar Mass, Ubv Spectra

Scientific paper

Results are reported for uby photoelectric observations of the eclipsing binary AZ Cas during the ascending branch of the system's most recent eclipse. The ephemeris is redetermined; an eclipse duration of 110 days and a period of totality of 94 days are obtained. It is found that the fourth contact time was different in different colors, that the time of eclipse maximum was two days later than predicted, and that the egress phase was shorter than the ingress phase. A preliminary photometric solution is presented, along with the following data: component radii of 10 and 830 solar radii, an orbital radius of 14 AU, and a sum of masses of 32 solar masses.

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