Light and colour curve observations and analysis of the short period eclipsing binary system UV PSC

Details Light and colour curve observations and analysis of the short period eclipsing binary system UV PSC Light and colour curve observations and analysis of the short period eclipsing binary system UV PSC

Jul 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979ap%26ss..63..319s&link_type=abstract

Astrophysics and Space Science, vol. 63, no. 2, July 1979, p. 319-349. Research supported by the Ministry of Higher Education a

Astronomy and Astrophysics

Astrophysics

24

Eclipsing Binary Stars, Light Curve, Stellar Spectrophotometry, Color, Graphs (Charts), Optimization, Stellar Luminosity, Stellar Temperature, Tables (Data)

Scientific paper

In the present work B and V light curves and the (B-V)-color curve of the short period (RS CVn type) binary system UV Psc are presented and analyzed, and absolute information from the available data are derived. Chi-squared minimization procedures were utilized to a large extent in fitting light and color curves. The solutions show the binary to be at a distance of about 90 pc with two detached components which are close to the main sequence (G2 and K0). The inclination of the orbit is close to 90 deg. Photometric irregularities present in the light curve are briefly considered in relation to current ideas on RS CVn systems, and the color information indicates that a locally hotter (rather than cooler) region is responsible for the irregularities.

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