[vsnet-alert 14414] ER UMa: negative superhumps at minimum

[Ohshima]

ER UMa: negative superhumps at minimum

 We have received further observations from William
Stein and Jani Virtanen. According to these data,
this object was still at minimum. The profile of 
negative superhumps is rather unusual, two peaks
sometimes combine and they look one large maximum.
Since 40 days have passed since the last superoutburst,
superoutburst will occur in the near furure. As with
the last superoutburst, the normal outburst may
trigger the next superoutburst if the next outburst
is a normal outburst.
 Further observations are encouraged!