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MASTER-Net discoveries: PSN, new Blazar and OT

ATel #8887; V. Shumkov, P. Balanutsa, E. Popova, V. Lipunov (Lomonosov MSU), D. Buckley(SAAO), R. Rebolo Lopez(IAC), E. Gorbovskoy, N. Tiurina, A. Kuznetsov, V. Kornilov, D. Vlasenko, I. Gorbunov, O. Gress, V. Vladimirov, D. Kuvshinov (Lomonosov Moscow State University, SAI), M. Serra Ricart, G. Israelyan (The Instituto de Astrofísica de Canarias), S. Potter, A. Kniazev (South African Astonomical Observatory)
on 31 Mar 2016; 20:52 UT
Credential Certification: Nataly Tyurina (tiurina@sai.msu.ru)

Subjects: Optical, Request for Observations, Blazar, Cataclysmic Variable, Supernovae, Transient, Variables

MASTER OT J135748.95-272623.4 discovery - PSN in 0.4"W,0.1"N in PGC754881

MASTER-IAC auto-detection system ( Lipunov et al., "MASTER Global Robotic Net", Advances in Astronomy, 2010, 349171 ) discovered OT source at (RA, Dec) = 13h 57m 48.95s -27d 26m 23.4s on 2016-03-30.02359 UT.
The OT unfiltered magnitude is 17.7m (limit 19.8m). The OT is seen in 2 images. There is no minor planet at this place. We have reference image without OT on 2016-03-11.06844 UT with unfiltered magnitude limit 20.2m.
Spectral observations are required.

The discovery and reference images are available at http://master.sai.msu.ru/static/OT/135748.95-272623.4.png

MASTER OT J140159.54-321845.6 discovery - optical flare of possible new Blazar

MASTER-SAAO auto-detection system discovered OT source at (RA, Dec) = 14h 01m 59.54s -32d 18m 45.6s on 2016-03-30.91802 UT.
The OT unfiltered magnitude is 18.2m (limit 20.0m).
The OT is seen in 10 images. There is no minor planet at this place.
We have reference image without OT on 2015-02-19.04669 UT with unfiltered magnitude limit 20.7m.

Spectral observations are required.
There is optical and radio source, so we suggest the Blazar flare.
The discovery and reference images are available at http://master.sai.msu.ru/static/OT/MASTEROTJ140159.54-321845.6.jpg

MASTER OT J134842.64-335212.5 discovery - possible dwarf nova outburst, ampl>3.5m

MASTER-SAAO auto-detection system discovered OT source at (RA, Dec) = 13h 48m 42.64s -33d 52m 12.5s on 2016-03-28.80755 UT.
The OT unfiltered magnitude is 17.7m (limit 19.8m).
The OT is seen in 3 images. There is no minor planet at this place.
We have reference image with marginally seen OT on 2015-02-23.04588 UT with 21.2m unfiltered magnitude limit .
Spectral observations are required.
The discovery and reference images are available at http://master.sai.msu.ru/static/OT/134842.64-335212.5.png

List of Optical Transients discovered by MASTER

MASTER Global Robotic Net