[vsnet-alert 11381] OT J161027.6+090739 superhumps and early superhumps

[Taichi Kato]

OT J161027.6+090739 superhumps and early superhumps

   Josch Hambsch and David Boyd have reported further observations.
A positive period derivative of ordinary superhumps has now become
evident.  The dot(P)/P was +6(2)*10^(-5).  An updated analysis of
the early observations (before July 30) has yielded a period of
0.05692(6) d, with a full mean amplitude of 0.06 mag and double-humped
profile.  The early modulations were likely early superhumps.
The fractional superhump excess based on this interpretation was 1.6 %,
fairly consistent with the period derivative.
Continued observations are encouraged to record the late evolution of
this WZ Sge-like object.