[vsnet-alert 9388] GW Lib: decay of late superhumps

[Taichi Kato]

GW Lib: decay of late superhumps

   Berto Monard and Itoh-san have reported further time-series
observations.  The data now clearly show the marked decrease
in the amplitudes of late superhumps.  This decay became more
or less apparent since June 10, and has been prominent since
June 15.  The mean amplitude on June 17 was about 0.05 mag,
possibly signaling the end of the entire superoutburst
(duration >60 d up to now).  There is some hint of phase shift
of the peaks of late superhumps.