[vsnet-alert 13771] OT J184228.1+483742 : stage transition exists!

Ohshima ohshima at kusastro.kyoto-u.ac.jp
Wed Oct 19 04:20:55 JST 2011


OT J184228.1+483742 : stage transition exists!

 We have received further observations from Enrique
de Miguel, Gianluca Masi, and Pavol A. Dubovsky.
Accroding to these data, this object underwent a rapid
decline on Oct 17. It is interesting whether further 
rebrightening will occur or not.

 The O-C curve with the observed maxima shows very interesting
behavior of this object. This object shows a period transition
similar to a transition B-C, which is shown in ordinary SU
UMa dwarf novae. However, the time transition occurred seems
little earlier than them (6 days before the end of the plateau).
The superhump period before the transition is 0.07274(3) d and
that after the transition is 0.07228(3) d. The ratio between them
is also similar to that of stage B-C transition.

 Further observations and monitoring are still encouraged!


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