[vsnet-alert 9567] HS2331+3905: early superhump disappeared!

uemuram at hiroshima-u.ac.jp uemuram at hiroshima-u.ac.jp
Wed Sep 12 20:40:59 JST 2007


HS2331+3905: early superhump disappeared!

Our observation last night (11 Sep.) shows a dramatic 
decrease of the amplitude of early superhumps. 

http://kanatatmp.blogspot.com/search/label/HS2331%2B3905

As can be seen in the above page, the light curve on 11 Sep. 
only has modulations with amplitudes of ~0.1 mag. 
They are significantly smaller than those observed on 10 Sep.

It is probably a sign of the growth of normal superhumps. 
The evolution of superhumps may be observed in the next 
couple of days.

Regards,
M. Uemura, R. Matsui, A. Arai, and M. Sasada
on behalf of the KANATA team
Hiroshima University


 




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