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MASTER: bright PSN discovery in PGC269232 and bright Blazar flare

ATel #7451; P. Balanutsa, D. Denisenko, V. Lipunov, E. Gorbovskoy (Lomonosov MSU), D. Buckley (SAAO), S. Antipin, N. Tiurina, V. Kornilov, A. Kuznetsov, V. Chazov, E. Popova, V. Vladimirov, V. Shumkov (Lomonosov Moscow State University, SAI), S. Potter, A. Kniazev, M. Kotze (The South African Astronomical Observatory), N. Budnev, K. Ivanov, O. Gress, S. Yazev, V. Poleshchuk (Irkutsk State University), A. Tlatov, D. Dormidontov, V. Senik, A. Parkhomenko, (Kislovodsk solar station of the Pulkovo observatory RAS), V. Krushinsky, I. Zalozhnih, A. Popov, A. Bourdanov (Ural Federal University), Yu. Sergienko, V. Yurkov, A. Gabovich (Blagoveschensk State Educational University)
on 27 Apr 2015; 11:11 UT
Credential Certification: Nataly Tyurina (tiurina@sai.msu.ru)

Subjects: Optical, Request for Observations, Blazar, Supernovae, Transient

Referred to by ATel #: 7458

MASTER OT J074610.09-712224.9 discovery - PSN in 1.4"E and 14.8"N of PGC269232

MASTER-SAAO auto-detection system ( Lipunov et al., Advances in Astronomy, MASTER Global Robotic Net, 2010 ) discovered OT source at (RA, Dec) = 07h 46m 10.09s -71d 22m 24.9s on 2015-04-26.75166 UT.

The OT unfiltered magnitude is 16.3m (the limit is 18.8m).

There are 6 images with this possible supernova in PGC269232. There is no minor planet at this place.

We have reference image without OT on 2015-02-26.91948 UT with 19.1 unfiltered magnitude limit, onon 2015-03-27.858 with m_lim=19.1 and on 2014-12-31.960 with m_lim=19.3.

Spectral observations are required.

The discovery and reference images are available at: http://master.sai.msu.ru/static/OT/074610.09-712224.9_1.png

MASTER OT J224412.70+405714.2 ( ATEL #5614 ) - 15.0m blazar flare

MASTER-Kislovodsk auto-detection system discovered blazar flare at (RA, Dec) = 22h 44m 12.77s +40d 57m 13.4s on 2015-04-23.96197 UT.

The OT unfiltered magnitude is 15.0m (the limit is 18.8m). There are 6 images with OT.

We have reference images without OT on 2010-11-06.64476 UT with 20.1 unfiltered magnitude limit.

MASTER preliminary photometry of this blazar is the following:
2010-09-13 20:44:53.065 18.2
2010-11-06 15:28:27.532 20.2
2010-11-06 16:15:40.373 20.1
2011-12-03 15:51:48.667 19.2
2013-11-24 17:24:51.591 17.5
2015-04-23 23:05:14.744 15.0

The blazar flare and reference images are available at: http://master.sai.msu.ru/static/OT/224412.77405713.4.png

Spectral observations are required.

List of Optical Transients discovered by MASTER

MASTER Global Robotic Net