[vsnet-alert 23805] Re: ASASSN-19ado

[Kojiguchi Naoto]

ASASSN-19ado: WZ Sge-type candidate

Additional information:
It was reported to TNS that "Blue continuum with Balmer, He I, and He II emission lines.
Hbeta shows emission superimposed on top of a broad absorption".

According to the Pan-starrs image, this object in quiescence is not detected and a neighbor star
of this object is detected at g=21.6. Large outburst amplitude of >9.2 mag. Possible WZ Sge-type object.

On 2019/12/24 0:57, Patrick Schmeer pasc1312-aavso at yahoo.de via vsnet-alert wrote:
>   ASASSN-19ado = AT 2019xim (UG/N)
>
> Now also reported as TCP J02153006+5717542:
> http://www.cbat.eps.harvard.edu/unconf/followups/J02153006+5717542.html
>
> Spectroscopy, precise astrometry, and multiband
> as well as time-resolved photometry are urgently
> required.
>
> Clear skies,
> Patrick
> -------
>       Am Sonntag, 22. Dezember 2019, 16:16:21 MEZ hat Keisuke Isogai <isogai at kusastro.kyoto-u.ac.jp> Folgendes geschrieben:
>   
>   ASASSN-19ado
>
> This object was discovered at g'=13.9 mag on 2019-12-22 04:48:00 UT.
> It was reported to TNS that "Bright transient near the Galactic plane, might
> be a Galactic Nova or a bright CV". There seem to be no optical counterpart.
>
> Coordinates:
> 02:15:29.990 +57:17:53.45
>
> TNS:
> https://wis-tns.weizmann.ac.il/object/2019xim
>
>    
>