Vol 10, No 2 (2010) / Sriram

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

Kandulapati Sriram, Pasagada Vivekananda Rao

Abstract

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 2m telescope of the IUCAA-Girawali Observatory. The V passband photometric 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.


Keywords


binaries: eclipsing— binaries: close

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