[vsnet-alert 12999] ER UMa : negative superhumps continue

[Ohshima]

ER UMa : negative superhumps continue

 We have further observations from Akazawa-san, Crimean Astrophy. 
Obs. team (observers: Denis Samsonov), Tom Krajci, Jani Virtanen,
William Stein, and Enrique de Miguel. 
 According to these data, this object has been showing negative
superhumps since March 15, although the interval of maxima was 
unstable.
 Further observations are strongly required!