Gravity-darkening in the Algol system

Details Gravity-darkening in the Algol system Gravity-darkening in the Algol system

Feb 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979ap%26ss..60..441k&link_type=abstract

Astrophysics and Space Science, vol. 60, no. 2, Feb. 1979, p. 441-453.

Astronomy and Astrophysics

Astronomy

2

Algol, Companion Stars, Eclipsing Binary Stars, Gravitational Effects, Limb Darkening, Stellar Luminosity, Astronomical Photometry, Infrared Astronomy, Late Stars, Light Curve

Scientific paper

The distribution of brightness over the apparent disk of Algol's secondary component is investigated. A theoretical near-IR light curve of Algol's secondary minimum is analyzed. Attention is called to a photometric anomaly exhibited by W UMa-type systems, viz., an apparent excess of gravity darkening over their distorted surfaces by a factor close to 2. A possible explanation of the discrepancy between theory and observations is considered.

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