[vsnet-outburst 8844] VW CrB: superoutburst terminated

[Makoto Uemura]

VW CrB: superoutburst terminated

The superoutburst of VW CrB had been terminated by a rapid 
fading on 14 Apr.

YYYYMMDD(UT)     mag.  err.
20080412.734148 16.03V 0.03  Higashi-Hiroshima Observatory
20080414.628537 18.49V 0.13  Higashi-Hiroshima Observatory

http://kanatatmp.blogspot.com/search/label/VW%20CrB

We found that the color got re-bluer in the latter half 
of the superoutburst plateau, as can be seen in the above page. 
It is rare that such a behavior is clearly observed in 
our TRISPEC observation of dwarf novae. 
While we have no time-series data, the re-bluer phase may 
be related to a superhump regrowth phase 
(e.g. Kato et al., 2003, PASJ, 55, 989;
 http://adsabs.harvard.edu/abs/2003PASJ...55..989K)

Regards,
M. Uemura, A. Arai, M. Sasasda, and M. Yamanaka
on behalf of the KANATA team
Hiroshima University