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1RXP J113123+4322.5 superhump period change Dear Colleagues, We have received new data sets from Nyrola team (Arto Oksanen), Nogami-san (Hida observatory). The new Kyoto and RIKEN data are being analyzed. The new data have confirmed the positive period derivative (period lengthening) of the superhumps! The mean dot(P)/P = +1.2x10^(-5) up to now. The superhump profile sometimes varies, and sometimes show secondary maxima. Further continuous observations are strongly encouraged! Regards, Taichi Kato VSNET Collaboration team
Return to the Powerful Daisaku Nogami
vsnet-adm@kusastro.kyoto-u.ac.jp
