Light-curve solution and interpretation for CG Cygni

Details Light-curve solution and interpretation for CG Cygni Light-curve solution and interpretation for CG Cygni

May 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985aj.....90..761n&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 90, May 1985, p. 761-766. Research supported by the National Science and Energy Rese

Astronomy and Astrophysics

Astronomy

19

Eclipsing Binary Stars, Light Curve, Radial Velocity, Starspots, Stellar Structure, Stellar Temperature, Chromosphere, Color-Magnitude Diagram, Limb Darkening, Roche Limit, Stellar Mass Ejection, Stellar Spectrophotometry

Scientific paper

Combining spectroscopic radial-velocity measures and photometric light-curve solutions has allowed the authors to model the short-period RS CVn-like system CG Cygni. The mass ratio is 1.0 and the system is detached. Long-term brightening is best explained by a steady increase in the temperature of the hotter star. The photometric distortion "wave" is rapidly variable and has a complex shape. Standard starspot models fail to reproduce the observed light curves.

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