Photometric study of W UMa type binaries in the intermediate open cluster NGC 7789

作     者：Kandulapati Sriram Pasagada Vivekananda Rao 

作者机构：Department of Astronomy Osmania University 

出 版 物：《Research in Astronomy and Astrophysics》 (天文和天体物理学研究（英文版）)

年 卷 期：2010年第10卷第2期

页      面：159-165页

核心收录：

学科分类：0709[理学-地质学] 07[理学] 0708[理学-地球物理学] 070401[理学-天体物理] 0825[工学-航空宇航科学与技术] 0704[理学-天文学] 

基　　金：UGC 

主　　题：binaries: eclipsing  binaries: close 

摘      要：The light curve solutions of two W UMa binary systems in the intermediate open cluster NGC 7789 are presented in this paper. These variables were observed using the 2 m telescope of the IUCAA-Girawali Observatory. The V passband photo- metric solutions of the two W UMa binaries were obtained using the latest version of the W-D program. The result shows that both systems are H-subtype W UMa binaries with high mass ratios.