[vsnet-alert 12952] ER UMa : irregular variations?

[Ohshima]

ER UMa : irregular variations?

 We have received further observations from Boyd Boitnott, Crimean 
Astrophy. Obs. (relayed by Elena Pavlenko), Maehara-san, Enrique 
de Miguel, and Josch Hambsch. According to these data, this object
is declining with the speed typical of SU UMa type dwarf novae.
However, interestingly, the variation of this object got to quite
irregular abruptly at Mar 6.9. At that time, the amplitude got to
smaller (from ~ 0.2 mag to less than 0.1 mag) and many weaker
peaks. Though a very uncertain guess, negative superhumps with a dip
(as seen at the later stage of the last superoutburst) appeared 
again.
 At any rate, this object is at the very interesting phase. 
Further observations are encoruaged!