MASTER transient: fast optical variability
ATel #12566; P. Balanutsa, E. Gorbovskoy, V. Lipunov, V. Kornilov, N. Tiurina , A. Kuznetsov, D. Vlasenko, D. Zimnukhov , V. Senik,(Lomonosov MSU), N. Budnev, O. Gress (Irkutsk State University), A. Tlatov, D. Dormidontov, A. Parkhomenko (Kislovodsk solar station of the Pulkovo observatory RAS), R. Rebolo, M. Serr-Ricart (IAC), D. Buckley (SAAO), R. Podesta, F. Podesta, C. Francile (OAFA), H. Levato (SJNU), V. Yurkov, Y. Sergienko, A. Gabovich (Blagoveshchensk Educational University), T. Pogrosheva
on 11 Mar 2019; 20:30 UT
Credential Certification: Nataly Tyurina (tiurina@sai.msu.ru)
Subjects: Optical, Request for Observations, Cataclysmic Variable, Quasar, Transient, Variables
MASTER OT J170332.88+692612.1 discovery - 2mag in less then 2 days
MASTER-Kislovodsk auto-detection system ( Lipunov et al., "MASTER Global Robotic Net",
Advances in Astronomy, 2010, 30L )
discovered OT source at (RA, Dec) = 17h 03m 32.88s +69d 26m 12.1s on 2019-03-08.98813 UT.
The OT unfiltered magnitude is 18.0m (limit 20.4m).
The OT has the following photometry
Date, unfiltered_magnitude_W=0.2B+0.8R(Usno-B1)
2019-02-19 23:58:58 18.02
2019-02-20 00:02:24 17.53
2019-03-05 22:55:08 18.87
2019-03-06 00:02:23 no OT with mlim=20.3
2019-03-08 23:42:54 18.61
2019-03-09 00:46:36 18.04
We have reference image without OT on 2016-12-22.90878 UT with unfiltered magnitude limit 20.0m .
This Galex source is also a source from The_Million_Quasars (Milliquas) catalog (V5.2) (Flesch, 2017)
Spectral observations are required.
The discovery and reference images are available at:
http://master.sai.msu.ru/static/OT/170332.88692612.1.png
MASTER Global Robotic Net
