[vsnet-alert 13190] ER UMa: negative superhumps in superoutburst

[Ohshima]

ER UMa: negative superhumps

 We have received further observations from Josch Hambsch. According
to these data, this object is undergoing a superoutburst. However,
positive sueprhumps had not appeared yet and negative sueprhumps were
seen.
 Positive superhumps may appear intermittently as the previous
superoutburst. Further observations are required in order not to
make the blank of observatons as possible!