[vsnet-alert 12782] ER UMa: continuously negative supehrump

[Ohshima]

ER UMa: continuously negative supehrump

 We have further observations from Okayama U. of Sci. team 
(including Akazawa-san), Shiokawa-san, William L. Stein and 
Enrique de Miguel.
According to obtained data, the negative supehrumps are
continuously seen after normal outburst on Jan 31. Meanwhile
the amplitude is getting larger, ~ 0.8 mag. For data after 
Jan 31, the mean superhump period is 0.062434 (12) d. Negative
superhump period have been relatively stable since the previous
superoutburst.

 It is interesting how long this negative superhump persist.
Further observations are required.