[vsnet-alert 12624] Re: OT J230425.8+062546: start to decline

Taichi Kato tkato at kusastro.kyoto-u.ac.jp
Sat Jan 15 13:39:35 JST 2011

Re: OT J230425.8+062546: start to decline

> Shiokawa-san has reported further observations. The data showed
> that the plateau stage of this object began to finish and start to
> decline on Jan. 14.

   The data don't seem to indicate a rapid decline.  This apparent decline
is probably a mis-interpretation of the airmass effect.
Furthermore, the data by Shiokawa-san was on Jan. 13.

   The data again prefers a longer alias (not very surprising considering
the difficulty in observing and analyzing the low-altitude evening object).
The observed times of superhumps seem to suggest the presence of a stage
transition around Jan. 9, but the observed decrease of the period seems
to be too large.  More observations will clarify the nature of the
period variation.

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