[vsnet-alert 13498] V503 Cyg : double-peak superhumps

Ohshima ohshima at kusastro.kyoto-u.ac.jp
Sat Jul 9 03:10:56 JST 2011

V503 Cyg : double-peak superhumps

 We have received further observations from Crimean Astrophysical
Observatory (observer: Aleksej Sosnovskij). According to these observations,
double-peak superhumps were clearly seen. Interestingly, the primary peak
and the secondary peak is comparable.
 The average magnitude is declining. A transition from positive superhumps
to negative superhumps may be seen. Further observations are encouraged!

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