An ignored high fill-out, extreme mass ratio contact binary V1222 Tauri
Abstract
Two color light curves of V1222 Tau were analyzed by using the latest version of the W-D code. The results show that V1222 Tau is an extreme mass ratio (q = 8.884 ± 0.149), high fill-out (f = 53.2% ± 1.9%) contact binary system. The period of V1222 Tau might have a parabolic variation according to a preliminary (O - C) analysis, with a possibly large long-term increase rate, dP/dt = +8.19 × 10-6 d yr-1.
- Publication:
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Publications of the Astronomical Society of Japan
- Pub Date:
- August 2015
- DOI:
- Bibcode:
- 2015PASJ...67...74L
- Keywords:
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- binaries: close;
- binaries: eclipsing;
- stars: evolution;
- stars: individual (V1222 Tauri)