[vsnet-campaign 1127] WZ Sge: rapid fading from the rebrightening maximum

[Taichi Kato <tkato>]

WZ Sge: rapid fading from the rebrightening maximum

Dear Colleagues,

   The Kyoto and Ouda teams have completed Aug. 22 observations under clear
conditions.  The data are now being intensively analyzed.

   We have also received new data from Y. Sano, M. Richmond and S. Davis
(RIT observatory team), T. Vanumunster and S. Kiyota.  All the data,
together with visual observations, show clear fading trend soon after
WZ Sge attained its maximum of the rebrigtening.  Although this may suggest
that the present revrightening may be a normal outburst, one must remind
that such a rapid fading was immediately followed by a second rebrightening
in some past WZ Sge-type outbursts (AL Com, V2176 Cyg), together with a
regrowth of superhumps.  Such a transition took a very short time (usually
within a day) compared to the usual evolution of dwarf nova outbursts,
and they are very difficult to catch.  Most intensive follow-up observations
are encouraged, with your best parameters used in outburst.

   More detailed analysis of all the data are keenly in progress, and
will be duly announced and/or reflected on the VSNET WZ Sge page.

Regards,
Taichi Kato
VSNET Collaboration team

VSNET Home Page

---

vsnet-adm@kusastro.kyoto-u.ac.jp

VSNET Home Page

Return to Daisaku Nogami

---

vsnet-adm@kusastro.kyoto-u.ac.jp