[vsnet-alert 11993] OT J213806.6+261957: superhump period variation

Taichi Kato tkato at kusastro.kyoto-u.ac.jp
Fri May 21 15:07:56 JST 2010

OT J213806.6+261957: superhump period variation

   Maehara-san, Akazawa-san (Okayama. U. of Sci. team) and Enrique
de Miguel have reported further observations.  It has now become
evident that the superhump period is increasing.  The measured
dot(P)/P = +7.1(1.6)*10^(-5).  This period increase seems to suggest
that the object is not a very extreme WZ Sge-type dwarf nova.
The small number of past outbursts may have been a result of
a low frequency of observations or observational gaps.
Future monitoring of this object for outbursts would be fruitful.

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