[vsnet-alert 10747] OT_J004226.5+421537 = M31_2008-11b: WZ Sge-type dwarf nova?

[Taichi Kato]

OT_J004226.5+421537 = M31_2008-11b

   Kiyota-san (with GRAS) reported following multicolor photometry
of this nova suspect in M31.  The color is too blue for a classical
nova, but is consistent with that of a dwarf nova in outburst.

object              YYYYMMDD(UT)   mag  code
OT_J004226.5+421537 20081129.264  14.42B  Kis.VSOLJ
OT_J004226.5+421537 20081129.270  14.56Rc  Kis.VSOLJ
OT_J004226.5+421537 20081129.273  14.59V  Kis.VSOLJ
OT_J004226.5+421537 20081129.274  14.63Ic  Kis.VSOLJ

   Upon this information, Nakajima-san obtained time-resolved
photometry.  There appear to be low-amplitude (~0.05 mag) modulations
with a period of ~0.054 d.  This variation (possible early superhumps),
however, was close to the detection limit and we encourage further
follow-up observations.

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