[vsnet-alert 9339] GW Lib: regrowth of optical humps

[uemuram at hiroshima-u.ac.jp]

GW Lib: regrowth of optical humps

Superhumps were still seen in the infrared (J-band) light curve on 8 May.
In contrast to the light curves on 7 May, the optical superhumps again
became prominent on 8 May. 

http://kanatatmp.blogspot.com/2007/05/gw-lib-regrowth-of-optical-humps.html

The behavior of the superhumps is apparently same in the optical 
and infrared observations. The regrowth of the optical humps may be 
interpreted by an inward propagation of a cooling wave in an 
eccentric accretion disk.

The humps had clear double-peak profiles on 8 May. 
The phase was rapidly shifted from those observed on 7 May.

Regards,
Makoto Uemura and Akira Arai
on behalf of the KANATA team