Contact binaries in star clusters

L. LIU; S.B. QIAN; E. FERNÁNDEZ-LAJÚS; G.L. BAUME

Lijiang

Congreso; 9th Pacific Rim Conference on Stellar Astrophysics; 2011

Many contact binaries are discovered in star clusters, especially in globular clusters. They should contain information about the environment and history of binary stars in the cluster. Hence, the studies of the contact binaries in clusters with different ages will be potential way to understand the clusters. Here, we want to show some examples, including three contact binaries which are located in the globular cluster M4 and 47 Tuc.