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Two OTs detected by MASTER

ATel #4640; P. Balanutsa, P. Podvorotny, D. Denisenko, V. Lipunov, E. Gorbovskoy, V. Lipunov, N. Tiurina, V. Kornilov, A. Belinski, N. Shatskiy, V. Chazov, A. Kuznetsov, D. Zimnukhov (Moscow State University, SAI), V. Krushinsky, I. Zalozhnih, A. Popov, A. Bourdanov, A. Punanova (Ural Federal University), K. Ivanov, S. Yazev, N. Budnev, E. Konstantinov, O. Chuvalaev, V. Poleshchuk, O. Gress (Irkutsk State University), A. Parkhomenko, A. Tlatov, D. Dormidontov, V. Senik (Kislovodsk solar station of the Pulkovo observatory RAS), V. Yurkov, Y. Sergienko, D. Varda, E. Sinyakov (Blagoveshchensk Educational University), V. Shumkov, S. Shurpakov, (MASTER team members), H. Levato, C. Saffe (ICATE), C. Mallamaci, C. Lopez and F. Podest (Observatorio Astronomico Felix Aguilar; OAFA)
on 11 Dec 2012; 16:25 UT
Credential Certification: Vladimir Lipunov (lipunov2007@gmail.com)

Subjects: Optical, Quasar, Supernovae

MASTER OT J114033.94+145756.6 - PSN

MASTER-Kislovodsk auto-detection system discovered OT source at (RA, Dec) = 11h 40m 33.94s +14d 57m 56.6s on 2012-12-11.12281 UT. The OT unfiltered magnitude is 19.3m (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 2010-12-09.12061 UT with unfiltered magnitude limit 21.0m. There are two SDSS8 galaxies J114033.45+145805.2 and J114033.90+145807.8 with 11arcsec offset.

Spectral observations are required.

The discovery and reference images are available at: http://master.sai.msu.ru/static/OT/114033.94145756.6.png

MASTER OT J064332.03+260002.1 - possible blazar?

MASTER-Kislovodsk auto-detection system discovered OT source at (RA, Dec) = 06h 43m 32.03s +26d 00m 02.1s on 2012-12-08.98777 UT. The OT unfiltered magnitude is 19.5m (limit 22.0m). The OT is seen in 2 images. There is no minor planet at this place. We have reference image without OT on 2010-12-06.99080 UT with unfiltered magnitude limit 21.8m. Spectral observations are required. The discovery and reference images are available at: http://master.sai.msu.ru/static/OT/064332.03260002.1_1.png

There is a faint star near the OT on digitized POSS plates and in GSC 2.3.2 with the following coordinates (J2000.0): 06 43 32.063 +26 00 01.97 and magnitudes: Fmag=20.05, Jmag=21.63. Color-combined (BRIR) DSS finder chart is uploaded to http://master.sai.msu.ru/static/OT/J064332+260002-BRIR.jpg (10'x10' FOV).

There is nothing at this position in 2MASS, USNO-B1.0, 1RXS and GCVS catalogs, as well as in AAVSO VSX. This area of sky is not covered by SDSS, CRTS and GALEX. There is a small variability on 21 Palomar/NEAT images obtained on 5 different nights from 2001 Dec. 18 to 2002 Mar. 19. We suggest that MASTER OT J064332.03+260002.1 is a possible blazar in active state. Spectroscopic confirmation is required.

List of optical transients discovered by MASTER

Global MASTER Robotic Net