[vsnet-campaign-xray 368] V4641 Sgr returned to quiescence confirmed

[Makoto Uemura]

V4641 Sgr returned to quiescence confirmed

    We have received new data sets from Chris Stockdale and 
Berto Monard.  Thanks for all!

    The light curve on July 10 by C. Stockdale was still 
~0.05mag above the quiescnece.  On the other hand, that on July 
13-14 by B. Monard was completely on the quiescent ellipsoidal 
modulation.  As reported in [vsnet-campaign-xray 363], the object 
was observed at the quiescence on July 12.  

    Using these all data sets, we can say the post-outburst 
active state in 2005 lasted for 14-16 days, slightly shorter 
than that in 2004 (17 days).

Regards,
Makoto Uemura
Hiroshima University