Photometric and period analysis of contact binary V608 Cassiopeiae
Abstract
The first complete VRcIc light curves of V608 Cas are presented and analyzed by using the 2010 version of the W-D code. The photometric results show that V608 Cas is a moderate mass-ratio (q = 0.373 ± 0.005), shallow contact (f = 19.7 ± 4.9 %) binary. A cool spot is present on the massive component. The orbital period of V608 Cas may increase continuously according to the (O - C) diagram, with a rate of dP / dt = + 6.49 ×10-7 days/year. The fundamental parameters of V608 Cas are estimated as: M1 = 0.95 ± 0.15M⊙ , M2 = 0.35 ± 0.08M⊙ , R1 = 0.78 ± 0.12R⊙ , R2 = 0.50 ± 0.10R⊙ , L1 = 0.563 ± 0.112L⊙ , L2 = 0.233 ± 0.086L⊙ , where the uncertainties mainly come from the uncertainty of the primary's effective temperature.
- Publication:
-
New Astronomy
- Pub Date:
- February 2016
- DOI:
- 10.1016/j.newast.2015.07.005
- Bibcode:
- 2016NewA...43....1L
- Keywords:
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- Stars: binaries: close;
- Stars: binaries: eclipsing;
- Stars: binaries: evolution;
- Stars: individual: V608 Cassiopeiae