[vsnet-alert 11894] GZ Cnc superhump variation (late superhumps?)

[Taichi Kato]

   Osaka Kyoiku U. team (Eriko Iino, Ryo Noguchi, Shinichi Nakagawa,
communicated by K. Matsumoto) and Maehara-san have reported further
observations.  Despite clear persistence of superhumps, the single
period could not naturally express observations on Mar. 17 and 19.
There appears to have been a phase jump since Mar. 17 (similar to
traditional late superhumps).  The object has now started fading.

  YYYYMMDD(UT)   mag  observer
  20100307.644  <139  (Yutaka Maeda)
  20100309.142   130  (Mike Simonsen)
  20100310.474   130  (Rod Stubbings)
  20100311.474   130  (Rod Stubbings)
  20100312.467   126  (Rod Stubbings)
  20100312.524   126  (Rod Stubbings)
  20100313.474   126  (Rod Stubbings)
  20100313.999  128C  (Etienne Morelle)
  20100314.491   128  (Rod Stubbings)
  20100314.604  132C  (Hiroyuki Maehara)
  20100315.844  12.92R  (Massimiliano Martignoni)
  20100316.850  13.02R  (Massimiliano Martignoni)
  20100320.487   138  (Rod Stubbings)
  20100322.487   151  (Rod Stubbings)