[vsnet-alert 24998] Re: NSV11599 = Gaia20fjv: low-amplitude outburst from a W UMa star!

[Denis Denisenko d.v.denisenko@gmail.com via vsnet-alert]

ZTF Lasair real-time light curve and snapshots:
https://lasair.roe.ac.uk/object/ZTF18aapmoyg/

Light curve in g and r filters from ZTF DR3 (Masci et al., 2019) showing
bright outburst to 13.35g on 2019 Mar. 30:
http://scan.sai.msu.ru/~denis/NSV11599-ZTF-DR3-LC.gif

Taichi Kato wrote on Wed, Nov 25, 2020 at 2:38 AM:

   The eclipse epoch is not very certain, but the deep
> minimum during eclipse BJD 2458019.8086 would be sufficient
> for the moment.
>

Leaving only the points out of outbursts, I have obtained P=0.429416d. Here
is the phased plot using this period and epoch by Taichi Kato:
http://scan.sai.msu.ru/~denis/NSV11599-phased_LC.gif

The "secondary" minimum in quiescent state becomes the main minimum in
outburst of W UMa-type dwarf novae.

Also, NSV 11599 is an UV source GALEX J185651.4+534008 with
NUV=19.14+/-0.10 magnitude only. There were no FUV images of this part of
the sky during GALEX operation.

Denis Denisenko