Observations of the eclipsing binary Zeta Aurigae during its 1979/80 eclipse

Details Observations of the eclipsing binary Zeta Aurigae during its 1979/80 eclipse Observations of the eclipsing binary Zeta Aurigae during its 1979/80 eclipse

Dec 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981acaps...1..203g&link_type=abstract

(Acta Astrophysica Sinica, vol. 1, 1981, p. 203-211.) Chinese Astronomy and Astrophysics, vol. 5, Dec. 1981, p. 406-412. Transl

Astronomy and Astrophysics

Astrophysics

B Stars, Chromosphere, Eclipsing Binary Stars, Stellar Spectrophotometry, Stellar Structure, Ubv Spectra, Data Reduction, Dwarf Stars, Light Curve, Red Giant Stars, Supergiant Stars

Scientific paper

Photometric observations of Zeta Aur during its 1979/1980 eclipse are presented in six narrow wave bands and in the UBV colors. The times of the second and third contacts are derived, and a new formula for the epoch is determined as Min(I) = J(solar-D) 2444219.643 + 972.176 E. The eclipse depth is shown to increase with decreasing wavelength. UBV results agree with previous measurements, and observations in the 3940 A band agree with the variation in the spectral K-line of Ca II, showing high chromosphere activity during this period.

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