[vsnet-alert 9071] V2051 Oph very bright peaks

[Taichi Kato]

   Rod Stubbings reported recurrent "very bright peaks"
in V2051 Oph during the current superoutburst.
The observed interval (2.04 d) is neither multiples of
the orbital or superhump period, suggesting that the
peaks don't directly reflect superhump maxima nor some
kind of orbital signature.  However, the beat period
(2.2 d) is considerably close to the observed interval,
which might imply high-amplitude humps (superhumps) are
strongly modulated by the beat period.  Such effects have
been recorded in other deeply eclipsing SU UMa-type dwarf
novae, but the case of V2051 Oph looks extreme.
Further observations are strongly encouraged.
Time-resolved photometry during the early stage of
future superoutbursts would be valuable.

  YYYYMMDD(UT)   mag  observer
  20061015.432   130  (Rod Stubbings)
  20061015.473   129  (Rod Stubbings)
  20061016.444   139  (Rod Stubbings)
  20061018.433   118  (Rod Stubbings)
  20061018.442   118  (Rod Stubbings)
  20061019.458   129  (Rod Stubbings)
  20061020.458   145  (Rod Stubbings)
  20061020.478   119  (Rod Stubbings)