MASTER: very bright possible QSO flare
ATel #8335; P. Balanutsa, V. Lipunov, E. Gorbovskoy (Lomonosov MSU), D. Buckley (SAAO), N. Tiurina, V. Kornilov, A. Kuznetsov, O. Gress, V. Shumkov, I. Gorbunov, D. Vlasenko, E. Popova, V. Vladimirov (M. V. Lomonosov Moscow State University, SAI), S. Potter, M. Kotze, A. Kniazev (South African Astronomical Observatory)
on 25 Nov 2015; 08:52 UT
Credential Certification: Nataly Tyurina (firstname.lastname@example.org)
Subjects: Optical, Request for Observations, AGN, Quasar, Transient, Variables
MASTER OT J083717.54-573411.1 discovery - possible QSO flare (12.2mag)
MASTER-SAAO auto-detection system ( Lipunov et al., "MASTER Global Robotic Net", Advances in Astronomy, 2010, 349171 )
discovered OT source at (RA, Dec) = 08h 37m 17.54s -57d 34m 11.1s on 2015-11-24.03137 UT.
The OT unfiltered magnitude is 12.2m (limit 19.1m).
The OT is seen in 6 images. There is no minor planet at this place.
MASTER-SAAO preliminary photometry is the following:
2014-12-23 01:23:32.342 13.8
2015-02-02 18:32:13.365 14.5
2015-03-14 20:56:21.767 14.7
2015-10-28 22:52:45.683 12.2
2015-11-24 00:45:10.796 12.2
There is QSO IRAS source in 4.5" . (This bright source doesn't present in publishied ASAS photometry data during 10 years (as its neighbouring bright star), so it means, that this is not Omicron Cet-type source.)
List of Optical Transients discovered by MASTER
Spectral observations are required.
The discovery and reference images are available at http://master.sai.msu.ru/static/OT/083717.54-573411.1.png
MASTER Global Robotic Net