Extremely Short-Period Contact Binaries

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Authors

ZHU Li-Ying QIAN Sheng-Bang JIANG L.-Q. ZEJDA Miloslav MIKULÁŠEK Zdeněk ZHAO E.-G.

Year of publication 2015
Type Article in Proceedings
Conference LIVING TOGETHER: PLANETS, HOST STARS, AND BINARIES
MU Faculty or unit

Faculty of Science

Citation
Field Astronomy and astrophysics
Keywords limit
Description Contact binaries below the short-period limit of 0.22 days are very rare. Here we define them as the "extremely short-period contact binaries". Observations and investigations of extremely short-period contact binaries can provide important information on the origin and evolutionary processes of contact binaries. We have monitored some such binaries for several years using several small telescopes as well as 2 m-class telescopes. We detected some new extremely short-period contact binaries and derived photometric solutions and period changes for them. Possible reasons for the low occurrence of the extremely short-period contact binaries are discussed.
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