[vsnet-alert 10181] GZ Cnc superoutburst?

Taichi Kato tkato at kusastro.kyoto-u.ac.jp
Mon May 12 13:25:19 JST 2008

   Eddy Muyllaert reported an outburst of GZ Cnc.  According to
AAVSO MyNewsflashes, the outburst has lasted at least for three days.
If these observations are correct, the present outburst is most likely
a superoutburst (wanted, of course!).

   The object also underwent a most likely superoutburst in late 2007
December.  This outburst was recorded by Martin Nicholson and ASAS,
but was not timely observed for superhumps (cf. [vsnet-alert 9783]
GZ Cnc superoutburst?)

   The present outburst would provide first-ever opportunity to
record superhumps in this supposed SU UMa-type dwarf nova.
Time-resolved photometry is strongly encouraged (though not very
suited for long photometric sessions).

  YYYYMMDD(UT)   mag  observer
  20080506.0724 <14.50V  (ASAS (Pojmanski, G. 2002, Acta Astron. 52,397))
  20080506.0921 <14.50V  (ASAS (Pojmanski, G. 2002, Acta Astron. 52,397))
  20080506.942  13.70C  (Eddy Muyllaert)

  20080506.4549  135  (MTH)
  20080506.4674  133  (MTH)
  20080507.2715  137  (Mike Linnolt)
  20080508.4549  133  (MTH)
  20080509.4597  133  (MTH)

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