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MASTER: Bright Dwarf Nova outburst (with superhumps) and its Binary Period Discovery

ATel #7900; O. Gress, V. Kornilov, V. Lipunov (Lomonosov MSU), D. Buckley (SAAO), E. Gorbovskoy (SAI MSU), N. Samus (INASAN, MSU), P. Balanutsa, N. Tiurina, A. Kuznetsov, V. Chazov, D. Vlasenko, I. Gorbunov (Lomonosov Moscow State University, Sternberg Astronomical Institute), S. Potter, M. Kotze (South African Astronomical Observatory), R. Rebolo, M. Serra-Ricart , N. Lodieu, G. Israelian (The Instituto de Astrofisica de Canarias), N. Budnev, K. Ivanov (Applied Physics Institute, Irkutsk State University), A. Tlatov, D. Dormidontov, V. Senik (Kislovodsk Solar Station of the Pulkovo Observatory), V. Krushinski, I. Zalozhnykh (Ural Federal University), Yu. Sergienko, A. Gabovich, V. Yurkov (Blagoveschensk Educational State University)
on 10 Aug 2015; 19:22 UT
Credential Certification: Nataly Tyurina (tiurina@sai.msu.ru)

Subjects: Optical, Request for Observations, Cataclysmic Variable, Transient, Variables

MASTER OT J144927.01-324406.8 - New Dwarf Nova with binary period determination

MASTER-SAAO auto-detection system ( Lipunov et al., Advances in Astronomy, MASTER Global Robotic Net, 2010 ) discovered OT source at (RA, Dec) = 14h 49m 27.01s -32d 44m 06.8s on 2015-08-09.71103 UT.

The OT unfiltered magnitude is 14.5m (the limit is 18.7m). The OT is seen in 192 images. There is no minor planet at this place.

The binary period P ~ 0.075d = 108 min. The light curve is available at http://master.sai.msu.ru/static/OT/MASTER_OT_J144927.01_324406.8.jpg
There is GALEX source at this place.
Spectral observations are required.

The discovery and reference images are available at: http://master.sai.msu.ru/static/OT/144927.01-324406.8.png

List of Optical Transients discovered by MASTER

MASTER Global Robotic Net