Radius Variations in the Classical Algol Binary U-Sagittae

Details Radius Variations in the Classical Algol Binary U-Sagittae Radius Variations in the Classical Algol Binary U-Sagittae

Feb 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982pasp...94...70o&link_type=abstract

Publications of the Astronomical Society of the Pacific, Vol. 94, P. 70, 1982

Astronomy and Astrophysics

Astronomy

14

Scientific paper

Five-color standardized photometry of the totally-eclipsing Algol binary U Sge in primary eclipse has been obtained from 1978 to 1981. Light curves show evidence of small brightness variations in the subgiant, and of some transient mass transfer. Among 16 Algol-like binaries monitored for about two years, U Sge is unique in showing radius changes of ±2% to 3%, probably in the cool subgiant.

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