[vsnet-alert 17082] SDSS J090221.35+381941.9: early superhumps again?
tkato at kusastro.kyoto-u.ac.jp
Tue Mar 25 13:47:43 JST 2014
SDSS J090221.35+381941.9: early superhumps again?
Roger Pickard, Colin Littlefield, Enrique de Miguel,
William Stein, Kiyota-san, Pavol A. Dubovsky and
Kyoto team (Ohshima and Kato) have reported observations.
An analysis of the data of the last two nights yielded
a period of 0.03363(1) d with a double-humped profile
characteristic to early superhumps! The present period
is now becoming close to the orbital period, and we
may be observing early superhumps again.
This is very unusual behavior! (competition between
the 2:1 and 3:1 resonance??)
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