[vsnet-alert 10817] V358 Lyr outburst up to now: classification?

Taichi Kato tkato at kusastro.kyoto-u.ac.jp
Tue Dec 9 14:41:46 JST 2008


V358 Lyr outburst up to now.

   It seems to me that the decline rate between Nov. 23 and 30
(using Nakajima-san's data) is too slow for a typical WZ Sge-type
dwarf nova.  The apparent lack of superhumps (at least not convincingly
detected) preceding the temporary fading is exceptional for
a WZ Sge-type dwarf nova.  I wonder if this object is indeed
a variable of this class.  We should urge spectroscopy before the
object fades away without showing prominent photometric variation.

  YYYYMMDD(UT)   mag  observer
  20081122.917  16.21C  (Gary Poyner)
  20081122.917  16.26C  (Jeremy Shears)
  20081123.406  15.81C  (Kazuhiro Nakajima)
  20081124.746  161C  (Ian Miller)
  20081126.402  15.74C  (Kazuhiro Nakajima)
  20081127.842  164C  (Ian Miller)
  20081128.371  15.78C  (Kazuhiro Nakajima)
  20081129.405  15.79C  (Kazuhiro Nakajima)
  20081130.363  15.90C  (Kazuhiro Nakajima)
  20081130.892  167C  (Ian Miller)
  20081201.790  168C  (Ian Miller)
  20081205.874  19.55C  (Gary Poyner)
  20081206.767  <175C  (Ian Miller)
  20081207.878  17.28C  (Gary Poyner)


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