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Bright OT detected by MASTER

ATel #4914; D. Denisenko, V. Lipunov, E. Gorbovskoy, N. Tiurina, P. Balanutsa, V. Kornilov, A. Belinski, N. Shatskiy, V. Chazov, A. Kuznetsov, V. Yecheistov, 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, A. Frolova, (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), P. Podvorotny, V. Shumkov, S. Shurpakov (MASTER team members), H. Levato, C. Saffe (ICATE), C. Mallamaci, C. Lopez and F. Podest (OAFA)
on 25 Mar 2013; 15:36 UT
Credential Certification: Vladimir Lipunov (lipunov2007@gmail.com)

Subjects: Optical, Cataclysmic Variable, Transient

MASTER OT J051415.56+671120.3 - new bright CV

MASTER-Amur auto-detection system discovered OT source at (RA, Dec) = 05h 14m 15.56s +67d 11m 20.3s on 2013-03-25.51045 UT. The OT unfiltered magnitude is 14.3m (limit 17.5m). The OT is seen in 2 images. There is no minor planet at this place. We have reference image without OT on 2012-12-11.63124 UT with unfiltered magnitude limit 18.3m.

The object is not present in 1RXS, GALEX, USNO-B1.0, GSC, 2MASS, GCVS and AAVSO VSX. This area of sky in Camelopardalis is not covered by SDSS. No previous outbursts were detected by Catalina Sky Survey and on 3 Palomar/NEAT images of 2002 Sep. 23. Nothing is visible at this position on 9 Palomar plates taken in 1954-1996 and on their combination to the limiting magnitude ~22. Color-combined (BRIR) DSS finder chart is uploaded to http://master.sai.msu.ru/static/OT/J051415+671120-BRIR5x5.jpg

Based on the outburst amplitude (at least 7m) we conclude that MASTER OT J051415.56+671120.3 is a new cataclysmic variable, most likely a dwarf nova of UGWZ (WZ Sge) subtype.

Follow up observations are required. The discovery and reference images are available at: http://master.sai.msu.ru/static/OT/051415.56671120.3.png

List of optical transients discovered by MASTER

Global MASTER Robotic Net