Light curve analysis and parameter study of the EB-type eclipsing binary V 836 Cygni

Details Light curve analysis and parameter study of the EB-type eclipsing binary V 836 Cygni Light curve analysis and parameter study of the EB-type eclipsing binary V 836 Cygni

Dec 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989mnras.241..559b&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 241, Dec. 1, 1989, p. 559-573.

Astronomy and Astrophysics

Astronomy

7

Cygnus Constellation, Eclipsing Binary Stars, Light Curve, Roche Limit, Ubv Spectra, Astronomical Photometry, Main Sequence Stars, Sky Surveys (Astronomy), Stellar Spectra

Scientific paper

Extensive UBV photometry is used to study the EB-type short-period eclipsing binary, V 836 Cygni. The Simplex method of parameter optimization is applied to the Wilson-Devinney (1971) model approach, showing that the corresponding global minimum of delta(fit) is only marginally pronounced, allowing the lightcurve to be fitted over a wide range of parameters. This is overcome by evaluating the four-color Stromgren observations of Hilditch and Hill (1975). The results suggest that the system has evolved through the stage of rapid mass exchange with mass-ratio reversal.

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