[vsnet-alert 6323] WZ Sge: rapid fading and hump structure

[Taichi Kato <tkato>]

WZ Sge: rapid fading and hump structure

Dear Colleagues,

   The analysis of the combined data on Aug. 17 (B. Martin, partially analyzed
Kyoto, J. Pietz) has shown the following new features:

   1) During the early decline stage, the humps have became smaller in
      amplitude and complex
   2) Later on, early half of the Kyoto data shows little evidence of
      eclipses!  Humps have become even less apparent, and the light curve
      looks rather flat, except for small-scale fluctuations.
   3) Later in Pietz's observations, a new sharp hump structure emerged.
      The humps have an orbital phase of 0.35-0.4, which is ~0.5 different
      from the giant humps seen on Aug. 16.   This feature may be
      "late superhumps" finally!  Eclipses are not very evident

   We will further analyze the data.  Please continue your observations
as long as possible, and keep everyone continuously informed!

Regards,
Taichi Kato
VSNET Collaboration team

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