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Two Possible Supernovae discovered by MASTER

ATel #5731; S. Shurpakov, D. Denisenko, V. Lipunov, E. Gorbovskoy, P. Balanutsa, N. Tiurina, V. Kornilov, N. Shatskiy, V. Chazov, A. Kuznetsov, A. Rufanov, V. Vladimirov, V. Yecheistov (Moscow State University, SAI), A. Parkhomenko, A. Tlatov, D. Dormidontov, V. Senik (Kislovodsk Solar Station of Pulkovo Observatory), V. Yurkov, Y. Sergienko, D. Varda, E. Sinyakov, A. Gabovich (Blagoveshchensk Educational University), K. Ivanov, S. Yazev, N. Budnev, E. Konstantinov, O. Chuvalaev, V. Poleshchuk, O. Gress (Irkutsk State University), V. Krushinsky, I. Zalozhnih, A. Popov, A. Bourdanov (Ural Federal University), P. Podvorotny, V. Shumkov (MASTER team members), H. Levato, C. Saffe (ICATE), C. Mallamaci, C. Lopez, F. Podest (OAFA)
on 7 Jan 2014; 21:21 UT
Credential Certification: Vladimir Lipunov (lipunov2007@gmail.com)

Subjects: Optical, Supernovae, Transient

MASTER OT J145711.54+084955.0 - possible Supernova

MASTER-Kislovodsk auto-detection system discovered OT source at (RA, Dec) = 14h 57m 11.54s +08d 49m 55.0s on 2014-01-02.08270 UT. The OT unfiltered magnitude is 17.2m (limit 19.2m). The OT is seen in 9 images. There is no minor planet at this place. We have reference image without OT on 2010-02-26.07469 UT with unfiltered magnitude limit 19.8m. The object was also found on 2013-12-30.12213 UT image from the same telescope with unfiltered magnitude 17.3m (limit 19.1m).

The OT is located 2" east and 2" north of the center of galaxy SDSS J145711.42+084953.0 (g=21.07 r=20.78 i=20.33). Spectral confirmation is required. The discovery and reference images are available at: http://master.sai.msu.ru/static/OT/145711.54084955.0.jpg

MASTER OT J031710.35+733503.9 - possible Supernova

MASTER-Kislovodsk auto-detection system discovered OT source at (RA, Dec) = 03h 17m 10.35s +73d 35m 03.9s on 2014-01-05.69610 UT. The OT unfiltered magnitude is 17.1m (limit 19.2m). The OT is seen in 8 images. There is no minor planet at this place. We have reference image without OT on 2012-09-27.98683 UT with unfiltered magnitude limit 19.1m. The object was first observed by the same telescope at 17.6m on 2013-11-17.841 UT but was not detected as a transient then.

The OT is located 1" west and 2" south of the center of anonymous galaxy. Sum of six 60-sec exposures by MASTER-Kislovodsk on 2014-01-05 is uploaded to http://master.sai.msu.ru/static/OT/J031710+733503-Kislovodsk140105.jpg

Spectral confirmation is required. The discovery and reference images are available at: http://master.sai.msu.ru/static/OT/031710.35733503.9.png

List of Optical Transients discovered by MASTER

Global MASTER Robotic Net