[vsnet-alert 12816] Re: SDSS J133941.11+484727.5 very bright outburst!

[Gianluca Masi]

Dear Colleagues,

I'm remotely using the photometric unit of the Virtual Telescope Project 
to cover this outburst.

After about one hour of coverage, I see a wave which can be an hibt of 
superhumps. I plan to go as long as possible on this star.

best,
Gianluca

Taichi Kato ha scritto:
> SDSS J133941.11+484727.5 very bright outburst!
> 
>    Jeremy Shears has detected a very bright outburst (report via baavss-alert)
> of this suspected WZ Sge-type dwarf nova.   This is the first recorded
> outburst of this object and 7 mag brighter than in quiescence!
> Time-resolved photometry and spectroscopy are urgently requested!
> 
>   YYYYMMDD(UT)   mag  observer
>   20110207.919   104  (Jeremy Shears)
>   20110207.940  10.416V  (Ian Miller)
>   20110207.958   105  (Gary Poyner)
> 
> Basic information:
> 
> SDSSJ133941.11+484727.5 133941.11 +484727.5 qUGSU:+ZZ 17.2 17.7 R
> http://adsabs.harvard.edu/abs/2005AJ....129.2386S (WD visible, Porb=1.7:hr?)
> http://adsabs.harvard.edu/abs/2006MNRAS.365..969G (Porb=82.52 min; ZZ type)
> type: Porb strongly suggests UGSU type
> range: in quiescence, CSS data
> (http://nesssi.cacr.caltech.edu/catalina/20010320/103201490494100485p.html)
> 
>