Revision of the photometric parameters of BS Cassiopeiae

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Authors	HE Jia-Jia QIAN Sheng-Bang ZEJDA Miloslav MIKULÁŠEK Zdeněk
Year of publication	2010
Type	Article in Periodical
Magazine / Source	Research in Astronomy and Astrophysics
MU Faculty or unit	Faculty of Science
Citation
Field	Astronomy and astrophysics
Keywords	stars: binaries: close; stars: binaries: eclipsing; stars: individual: BS Cas
Description	7 CCD times of light minimum of the overcontact binary BS Cas which were obtained from 2007 Aug. to Nov. and one R CCD light curve are presented. BS Cas is a typical EW variable. LC is symmetric and shows total eclipses, which allows us precise determination of photometric parameters. BS Cas is a W overcontact binary f=27.5% with a mass ratio of q = 2.7188. The temperature difference between the two components is 190 K. OC diagram suggests that the period of BS Cas is decreasing, what can be explained by mass transfer from the primary to the secondary.
Related projects:	Spectral energy distribution in chemically peculiar stars and its variability Photometric Investigation of Selected Eclipsing Binaries