[vsnet-alert 6555] WZ Sge: time-series analysis of the 7-th rebrightening

[Taichi Kato <tkato>]

WZ Sge: time-series analysis of the 7-th rebrightening

Dear Colleagues,

   We have put on the VSNET WZ Sge page representative averaged profiles
on Sep. 3 and 4 (at maximum of the 7-th rebrightening and the following
minimum, respectively).  At maximum of the 7-th rebrightening, eclipses
were still present (shallow, but still sharp).  Humps have become smaller
in amplitude, and siginificantly moved in phase.  The strongest humps
are seen at phase 0.2-0.3, which is largely different from the phase
of the large humps seen on preceding nights.  Other small-scale structures
are seen on the descending branch; among them a dip at phase 0.7-0.8
is distinct.

   During the minimum following the 7-th rebrightening, large-amplitude
humps again appeared!  The humps are triangular in shape and have a sharp
peak at phase 0.3.  The systenatic phase shift between these two nights
suggest that they are superhumps.  Eclipses have become again inapparent.

   Please have a look at the light curves on the WWW for more details.

Regards,
Taichi Kato
VSNET Collaborationt team

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