[vsnet-alert 10510] DV Sco superoutburst; superhump period

Taichi Kato tkato at kusastro.kyoto-u.ac.jp
Sat Sep 6 14:21:54 JST 2008


DV Sco superoutburst

   Berto Monard has kindly provided time-series photometry on Sep. 3.
The data clearly show superhumps, indicating that the current outburst
is a superoutburst.  The superhump period is around 0.106 d,
suggesting that the previous determination (vsnet-alert 8325) referred
to an one-day alias.  The conclusion "DV Sco is one of the rare
dwarf novae in the period gap" is unchanged, or even more strongly
supported.  Further time-resolved photometry is encouraged.

  DV Sco superoutburst up to now:

  YYYYMMDD(UT)   mag  observer
  20080827.451   150  (Rod Stubbings)
  20080828.496   148  (Rod Stubbings)
  20080829.440   148  (Rod Stubbings)
  20080902.437   142  (Rod Stubbings)
  20080903.455   142  (Rod Stubbings)


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