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Two Possible Supernovae discovered by MASTER

ATel #6084; V. Shumkov, M. Schukin, V. Lipunov, E. Gorbovskoy, N. Tiurina, D. Denisenko, P. Balanutsa, V. Kornilov, N. Shatskiy, V. Chazov, A. Kuznetsov, V. Vladimirov, V. Yecheistov (Moscow State University, SAI), 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. Yurkov, Y. Sergienko, D. Varda, E. Sinyakov, A. Gabovich (Blagoveshchensk Educational University), V. Krushinsky, I. Zalozhnih, A. Popov, A. Bourdanov (Ural Federal University), P. Podvorotny, S. Shurpakov (MASTER team members), H. Levato, C. Saffe (ICATE), C. Mallamaci, C. Lopez, F. Podest (OAFA)
on 21 Apr 2014; 15:51 UT
Credential Certification: Nataly Tyurina (tiurina@sai.msu.ru)

Subjects: Optical, Supernovae, Transient

Referred to by ATel #: 6092

MASTER OT J140804.26-115949.7 - possible Supernova

MASTER-Kislovodsk auto-detection system discovered OT source at (RA, Dec) = 14h 08m 04.26s -11d 59m 49.7s on 2014-03-30.92955 UT. The OT unfiltered magnitude is 17.1m (limit 18.3m). The OT is seen in 5 images. There is no minor planet at this place. We have reference image without OT on 2014-02-05.01282 UT with unfiltered magnitude limit 18.4m. Sum of six 60-sec unfiltered exposures by MASTER-Kislovodsk on 2014 Mar. 30.926-30.932 UT is uploaded to http://master.sai.msu.ru/static/OT/J140804-115949-MASTER-Kislovodsk.jpg

The new object is located 19" east and 9" north of the center of galaxy PGC 959023 = SDSS J140803.02-115958.7 (z=0.0353). Spectral confirmation is required. Discovery and reference images are available at: http://master.sai.msu.ru/static/OT/140804.26-115949.7.png

MASTER OT J092340.92+292859.5 - possible Supernova

MASTER-Kislovodsk auto-detection system discovered OT source at (RA, Dec) = 09h 23m 40.92s +29d 28m 59.5s on 2014-04-19.75675 UT. The OT unfiltered magnitude is 18.3m (limit 19.7m). The OT is seen in 2 images. There is no minor planet at this place. We have reference image without OT on 2014-01-04.91677 UT with unfiltered magnitude limit 19.4m.

The new object is located 6" east and 6" south of the center of galaxy SDSS J092340.46+292905.5 (g=18.72 r=17.92 i=17.62). However, there is also a red star SDSS J092340.81+292859.8 (g=24.96 r=22.13 i=20.80) = WISE J092340.97+292859.0 (W1=15.34 W2=15.06 W3=12.29) within 1" of the OT. Spectral confirmation is required. Discovery and reference images are available at: http://master.sai.msu.ru/static/OT/092340.92292859.5.jpg

List of Optical Transients discovered by MASTER

Global MASTER Robotic Net