[vsnet-alert 22653] IM Eri: damping oscillation phase

[Taichi Kato]

IM Eri: damping oscillation phase

   Osaka Kyoiku U. team, Josch Hambsch, Tonny Vanmunster,
Itoh-san, Kyoto U. team and Crimean Astrophys. Obs. team
have reported observations up to now.
The object now shows damping oscillations with a period
of 4 d.  The object shows a clear signal of 0.14556(5) d
(orbital period).  There is no hint of negative superhumps.
Although the next IW And-type maximum is expected to
occur in middle to late November, the periodicity
may not be exact and continued observations are needed
to see what happens at such a maximum.