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Possible Supernova in Dwarf Irregular Galaxy discovered by MASTER

ATel #6435; S. Shurpakov, D. Denisenko, V. Lipunov, E. Gorbovskoy, N. Tiurina, P. Balanutsa, V. Kornilov, N. Shatskiy, V. Chazov, A. Kuznetsov, V. Vladimirov, V. Yecheistov (Moscow State University, SAI), V. Yurkov, Y. Sergienko, D. Varda, E. Sinyakov, A. Gabovich (Blagoveshchensk Educational University), A. Parkhomenko, A. Tlatov, D. Dormidontov, V. Senik (Kislovodsk Solar Station of Pulkovo Observatory), 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 1 Sep 2014; 17:10 UT
Credential Certification: Nataly Tyurina (tiurina@sai.msu.ru)

Subjects: Optical, Supernovae, Transient

MASTER OT J221526.55-102834.6 - PSN in dwarf irregular galaxy

MASTER-Amur auto-detection system discovered OT source at (RA, Dec) = 22h 15m 26.55s -10d 28m 34.6s on 2014-08-29.54444 UT. The OT unfiltered magnitude is 16.9m (limit 17.8m). The OT is seen in 8 images. There is no minor planet at this place. We have reference image by MASTER-Kislovodsk without OT on 2014-07-04.920 UT with unfiltered magnitude limit 17.9m.

The new object is located 7" east and 6" north of the center of dwarf irregular galaxy LEDA 68414 = WHI B2212-10. This area of sky in Aquarius is not covered by SDSS. Color-combined DSS finder chart is uploaded to http://master.sai.msu.ru/static/OT/J2215-1028-JRIR.jpg (10'x10' FOV). Spectral observations are required. The discovery and reference images are available at: http://master.sai.msu.ru/static/OT/221526.55-102834.6.jpg

List of Optical Transients discovered by MASTER

Global MASTER Robotic Net