[vsnet-alert 24123] Re: TOCP: two new BraTS transients (13.9 mag, in Vela; 15.2 mag, in Scorpius)

[Berto Monard astroberto13m@gmail.com via vsnet-alert]

Observations of PNV J11042370-4959170 over two nights, done at CBA KKO,
hint at a probable ugwz type star that is now evolving through the outburst
transition stage.

There is no optical counterpart down to 20.5mag in DSS-red, no counterpart
in 2mass and galex.
The observed magnitude on March 30.8 was 14.8CR, the outburst amplitude
therefore >6 mags.

No clear periodic modulation is visible in the light curves of 30 and 31
March.

KKO derived astrometry vs UCAC2 frame: 11 04 23.73  -49 59 17.3, with
estimated uncertainties (at 1 standard deviation level) of 0.02 in RA, 0.1
in Decl.
This position agrees with the published coordinates within 2 standard
deviations.

Further observations are planned.

Berto Monard / CBA-KKO




On Sun, Mar 29, 2020 at 9:26 PM Patrick Schmeer pasc1312-aavso at yahoo.de via
vsnet-alert <vsnet-alert at ooruri.kusastro.kyoto-u.ac.jp> wrote:

> PNV J11042370-4959170 = BraTS-ROCG-T1-001  (UG:)
> (submitted to VSX)
> http://www.cbat.eps.harvard.edu/unconf/followups/J11042370-4959170.html
> https://wis-tns.weizmann.ac.il/object/2020fgz
>
> PNV J17403732-3314347 = BraTS-SON-T2-011  (N:/UG:)
> (submitted to VSX)
> http://www.cbat.eps.harvard.edu/unconf/followups/J17403732-3314347.html
> https://wis-tns.weizmann.ac.il/object/2020fhd
>
> Spectroscopy, multiband photometry, and precise
> astrometry are required.
>
> Clear skies,
> Patrick
>
>