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MASTER: Long optical flare associated with X-ray source.

ATel #7186; O. Gress, V. Lipunov, E. Gorbovskoy (Lomonosov MSU), D. Buckley (SAAO), S. Antipin, N. Tiurina , P. Balanutsa, V. Kornilov, A. Kuznetsov, V. Chazov, D. Kuvshinov, V. Vladimirov, V. Shumkov, S. Shurpakov (Lomonosov Moscow State University, SAI), S. Potter, A. Kniazev, M. Kotze (The South African Astronomical Observatory), K. Ivanov, N. Budnev, S. Yazev, V. Poleshchuk, E. Konstantinov, O. Chuvalaev (Irkutsk State University), A. Tlatov, D. Dormidontov, V. Senik, A. Parkhomenko, (Kislovodsk solar station of the Pulkovo observatory RAS), V. Yurkov, Y. Sergienko, A. Gabovich (Blagoveshchensk Educational University), V. Krushinsky, I. Zalozhnih, A. Popov, A. Bourdanov (Ural Federal University)
on 8 Mar 2015; 14:09 UT
Credential Certification: Nataly Tyurina (tiurina@sai.msu.ru)

Subjects: Radio, Optical, X-ray, Blazar, Cataclysmic Variable, Quasar, Transient

MASTER OT J070559.93-381358.7 - the optical flare discovery of X-ray source

MASTER-SAAO auto-detection system ( Lipunov et al., Advances in Astronomy, MASTER Global Robotic Net, 2010 ) discovered optical flare of the source at (RA, Dec) = 07h 05m 59.93s -38d 13m 58.7s on 2015-03-06.87322 UT. The OT unfiltered magnitude is 15.0m (the limit is 19.0m).

The OT is seen in 5 images on 2015-03-06.

We have 2 images of this OT with m_OT=15.7 on 2015-01-14.0569UT.

We have reference image with m_OT=19.8 on 2014-12-24.97509 UT (with 19.9 unfiltered magnitude limit).

This OT has X-ray assotiation with J070600.0-381357 Swift source from SXPS Swift X-ray telescope point source catalogue (Evans+ 2014).

The discovery and reference images are available at: http://master.sai.msu.ru/static/OT/070559.93-381358.7.png

Spectral observations are required.

List of Optical Transients discovered by MASTER

Global MASTER Net