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CU Vel: superhump period Dear Colleagues, We have received further data from Tom Richards. A preliminary analysis of the data has yielded a superhump period of 0.0809-0.0811 d, depending on the selection of the calculated bins. These periods are significantly longer than the previous value, and the generally adopted value. It may be possible that CU Vel is currently experiencing a phase of rapid period ecolution, or that the previously reported value had a large error. We need further intensive observations to clarify this situation. At a period of Psh = 0.0811 d, a fractional superhump excess can be one of the largest among SU UMa stars. Regards, Taichi Kato VSNET Collaboration team
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vsnet-adm@kusastro.kyoto-u.ac.jp
