[vsnet-alert 9553] HS2331+3905: V, J, and Ks-band light curves in 4-6 September

[Makoto Uemura]

HS2331+3905:  V, J, and Ks-band light curves in 4-6 September

We put the V, J, and Ks-band light curves in 4-6 September at:

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

In V- and J-bands, the object became blue from 4th to 5th 
September. The temperature of an accretion disk was hence 
rising.  On 5th September, the brightness reached its maximum, 
and now, starting a fading. The fading trend has been confirmed 
tonight observation too.

The Ks-band flux is curiously bright (cf. the case of GW Lib;
http://kanatatmp.blogspot.com/2007/05/gw-lib-up-to-2-may.html).

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