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PU CMa: further period evolution Dear Colleagues, We have received new sets of data from Berto Monard and Peter Nelson. The data show that the object is now fading at an almost constant rate (plateau stage). The new superhump observations seem to more strongly support that the trend of period decrease. If this is confirmed, PU CMa apparently makes the first example of short-period SU UMa stars with a meaningfully measured negative period derivative. Please keep up the current observing sessions! Regards, Taichi Kato VSNET Collaboration team
Return to the Daisaku Nogami
vsnet-adm@kusastro.kyoto-u.ac.jp
