[vsnet-alert 12979] ER UMa: unusual variation?

[Ohshima]

ER UMa: unusual variation?

 We have received further observations from Pavol A. Dubovsky,
Tom Krajci, and William Stein. As mentioned in the previous mail,
positive superhumps and negative superhumps were both seen around
March 13.85. The coexistence seems to have disappeared around March
14.4, however, the profile of variations is not that of usual superhumps.
 Further observations are strongly required!