The ellipsoidal variables. IV - Light variations

Details The ellipsoidal variables. IV - Light variations The ellipsoidal variables. IV - Light variations

Feb 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989ap%26ss.152..329b&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 152, no. 2, Feb. 1989, p. 329-335.

Astronomy and Astrophysics

Astrophysics

5

Binary Stars, F Stars, Main Sequence Stars, Variable Stars, Astronomical Models, Light Curve, Stellar Mass, Stellar Spectra

Scientific paper

The Delta(V) variations of ellipsoidal variables are investigated as a function of the spectral type of the primary. A model is developed on the assumption that the primary has near main-sequence characteristics. It is argued that the observed minimum in the Delta(V) variations around spectral type F is real and is due to variations in the gravity-darkening exponent beta. The absolute upper limit to Delta(V) variations is found to be about 0.2 mag.

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