[vsnet-alert 11366] OT_J161027.6+090739 superhump period

[Taichi Kato]

OT_J161027.6+090739 superhump period

   Greg Bolt and Josch Hambsch have reported time-resolve photometry.
A clear growth of superhumps was detected on July 30, attaining a full
amplitude on July 31 and Aug. 1.  A period analysis clearly detected
a transition of superhump period from a longer to shorter (stage A to B)
one (cf. arXiv0905.1757).  The mean period for the stage B has been
0.05799(2) d which is expected to have a positive Pdot.
Low-amplitude modulations were detected before July 30.  Although
exact identification should await further analysis, these modulations
might have been early superhumps, as in BC UMa.
Further observations are strongly encouraged.