[vsnet-alert 6645] WZ Sge: hump period on Sep. 14-16

[Taichi Kato <tkato>]

WZ Sge: hump period on Sep. 14-16

Dear Colleagues,

   Period analysis of the humps between Sep. 14 and 16 (after the 12th
rebrightening) has yeilded a period of 0.05760(2) d, which is significantly
longer than the orbital period.  The period is even strikingly longer than
the main superhump period (0.05719-0.05722 d).  We must be observing
a different (unknown) kind of modulations, possibly other than the well-known
"late superhumps".  In order to establish the periodicity, intensive,
continuous observations are most urgently requested.  The mean amplitude of
this signal was 0.10 mag.  The mean rate of the fading during this period
was 0.096 mag/d.

Regards,
Taichi Kato
VSNET Collaboration team

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