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http://dx.doi.org/10.5140/JASS.2006.23.3.177

PHOTOMETRIC OBSERVATIONS OF THE CONTACT BINARY SYSTEM V523 CASSIOPEIAE  

Jeong Jang-Hae (Dept. of Astronomy and Space Science, Chungbuk National University)
Kim Chun-Hwey (Dept. of Astronomy and Space Science, Chungbuk National University)
Lee Yong-Sam (Dept. of Astronomy and Space Science, Chungbuk National University)
Publication Information
Journal of Astronomy and Space Sciences / v.23, no.3, 2006 , pp. 177-188 More about this Journal
Abstract
A total of 920 observations (230 in ${\Delta}B$, 230 in ${\Delta}V$, 230 in ${\Delta}R$, 230 in ${\Delta}I$) for V523 Cas were made on 5 nights from January 6 to 24 in 2003 using the 61cm telescope with 2K CCD camera of the Sobaeksan Optical Astronomy Observatory of KASI. From our observations 9 times of minimum light were newly determined. Combined analysis of our new BVRI light curves with the double-lined radial velocity curves of the Rucinski et al.'s (2003) were made with the 2004 Wilson-Devinney (WD) binary model to yield new physical parameters of the V523 system. Small asymmetries in light curves were explained with the adoption of a cool spot on the hot primary and a hot spot on the cool secondary.
Keywords
V523 Cas; BVRI CCD observations; Times of minimum light; WD solution;
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