[vsnet-alert 22332] Re: SDSSJ141118.31+481257.6 rebrightening ！

[Keisuke Isogai]

Re: SDSSJ141118.31+481257.6 rebrightening ！

     Itoh-san, Sano-san, Crimean Astrophys. Obs. team(A. Simon, E. Pavlenko),
Tamas Tordai, Geoff Stone and Kyoto U. team have reported the observations.

     As expected, the object showed a one-day rebrightening on July 20th. The
recurrence time of the rebrightenings was 24 days. The recurrence time of the
rebrightenings are gradually being extended.  Before the rebrightening, the
averaged magnitude was 17.0 mag. Now, the object is 17.3 mag which is 2.4 mag
brighter than the quiescence. This brightness suggests that the object can show
more rebrightenings. Thus further monitoring are encouraged.

     Now, we cannot detect a reliable signal of superhumps. However, if we can
obtain high S/N data, we may detect it. So time-series observations are also
important.