[vsnet-alert 10397] DO Vul superhumps update

[Taichi Kato]

DO Vul superhumps update

   Maehara-san and Kyoto team (observer Ohshima-sam) have succeeded in
observing DO Vul.  An analysis of the data up to July 31 gives the best
superhump period of 0.05823(7) d.  Observations up to July 30 give
a positive period derivative dot(P)/P = +9(4)*10^(-5), characteristic
for this superhump period.  The observation on July 31 showed a signature
of period shortening associated with the regrowth of superhumps.
These findings suggest that the present superoutburst of DO Vul will
be soon terminated by a rapid fading.