[vsnet-alert 12960] Re: ER UMa: negative superhumps intermittently appear?

[Taichi Kato]

Re: ER UMa: negative superhumps intermittently appear?

   Most recent data (since March 9) again showed complex profiles with
multiple maxima.  Although the mean times of maxima are well expressed
by the orbital period, a period analysis suggests the presence of
negative superhumps.  We may be observing a transition to negative
superhumps.  Continued observations are strongly encouraged!