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Two optical transients detection by MASTER

ATel #7033; P. Balanutsa , V. Vladimirov, V. Lipunov, E. Gorbovskoy, V. Kornilov, A. Kuznetsov, D. Denisenko, N. Tiurina, (Lomonosov Moscow State University, SAI), D. Buckley, S. Potter, A. Kniazev, M. Kotze (South African Observatory), O. Gress , K. Ivanov, N. Budnev, S. Yazev, E. Konstantinov, O. Chuvalaev, 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), V. Yurkov, Y. Sergienko, A. Gabovich (Blagoveshchensk Educational University), V. Shumkov, S. Shurpakov (MASTER team members)
on 7 Feb 2015; 17:35 UT
Distributed as an Instant Email Notice Transients
Credential Certification: Nataly Tyurina (tiurina@sai.msu.ru)

Subjects: Optical, Cataclysmic Variable, Star, Supernovae, Transient, Variables

194054.30+450242.0 - possible new CV

MASTER-Tunka auto-detection system ( Lipunov et al., 2010 ) discovered OT source at (RA, Dec) = 19h 40m 54.30s +45d 02m 42.0s on 2015-02-04.91387 UT. The OT unfiltered magnitude is 16.7m (the limit is 17.8m).

There are 3 images with OT in MASTER-Tunka database. We have reference image without OT on 2011-09-21.5245 UT with unfiltered magnitude limit 19.2m.

The discovery and reference images are available at: http://master.sai.msu.ru/static/OT/MASTERJ194054.30+450242.0.jpg

Spectral observations are required.

MASTER OT J053953.61-275546.5 – possible SN or new CV

MASTER-SAAO auto-detection system discovered OT source at (RA, Dec) = 05h 39m 53.61s -27d 55m 46.5s on 2015-02-06.937 UT.

The OT unfiltered magnitude is 15.9m ( the limit is 19.2m).

There are 3 images with OT. There is reference image at MASTER-SAAO database with a 19.6m unfiltered magnitude limit on 2015-01-10.970UT .

This OT can be identical to the Guide Star Catalog (2.3.2) S229004200 source with j=22.15.

The discovery and reference images are available at: http://master.sai.msu.ru/static/OT/MASTERJ053953.61-275546.5.jpg

Spectral observations are required.

List of Optical Transients discovered by MASTER

MASTER Global Robotic Net