[vsnet-alert 10820] OT_J004226.5+421537: updated superhump period

Taichi Kato tkato at kusastro.kyoto-u.ac.jp
Tue Dec 16 10:30:05 JST 2008


OT_J004226.5+421537: updated superhump period

   We have received further data from Maehara-san and Kyoto team
(observer: Ohshima-san and colleagues).
The refined period of ordinary superhumps is 0.05679(3) d.
We also refined the period of early superhump to be 0.05549(2) d.
The fractional superhump excess is 2.3% from these figures,
which may be slightly high for extreme WZ Sge-type dwarf novae.
We might expect period evolution of superhumps and encourage
further observations.


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