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MASTER: new OTs

ATel #9616; V. Shumkov, V. Lipunov (Lomonosov MSU), R. Rebolo, M. Serra-Ricart (IAC), R. Podesta (OAFA), H. Levato (ICATE), E. Gorbovkoy, N. Tiurina, P. Balanutsa, A. Kuznetsov, V. Kornilov, O. Gress, K. Ivanov, V. Vladimirov (Lomonosov MSU), C. Lopez, F. Podesta (Observatorio Astronomico Felix Aguilar), C. Saffe (Instituto de Ciencias Astronomicas, de la Tierra y del Espacio), T. Pogrosheva
on 12 Oct 2016; 11:21 UT
Credential Certification: Nataly Tyurina (tiurina@sai.msu.ru)

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

MASTER OT J054746.81+762018.9 discovery - new OT, poss.dwarf nova outburst, Ampl>5.3m, no VIZIER data
MASTER-IAC auto-detection system discovered OT source at (RA, Dec) = 05h 47m 46.81s +76d 20m 18.9s on 2016-10-12.03463 UT with unfiltered magnitude m_OT=16.7m (mlim=18.5m).
The OT is seen in 3 images. There is no minor planet at this place. There is no any sources in VIZIER database, i.e.22m POSS limit and more then 5.3mag of amplitude of current outburst.
We have reference image without OT on 2015-11-12.14416 UT with unfiltered mlim=20.2m.
Spectral observations are required.
The discovery and reference images are available at http://master.sai.msu.ru/static/OT/054746.81762018.9.png

MASTER OT J043723.48-495632.3 discovery - new pos. dwarf nova outburst(no VIZIER), Ampl>3.3m

MASTER-OAFA auto-detection system discovered OT source at (RA, Dec) = 04h 37m 23.48s -49d 56m 32.3s on 2016-10-09.27082 UT with unfiltered m_OT=18.7m (mlim=20.0m).
The OT is seen in 3 images. There is no minor planet at this place. We have reference image without OT on 2016-08-05.37050 UT with unfiltered mlim=20.6m. There is no any sources in VIZIER database, i.e. outburst amplitude more then 3.3mag.
Spectral observations are required. The discovery and reference images are available at http://master.sai.msu.ru/static/OT/043723.48-495632.3.png

MASTER OT J031556.82+012719.0 discovery - UVCet flare

MASTER-IAC auto-detection system discovered OT source at (RA, Dec) = 03h 15m 56.82s +01d 27m 19.0s on 2016-10-11.12103 UT with unfiltered m_OT=19.0m (mlim=20.3m).
The flare of OT is seen in 2 images of 3 - UVCet type. There is no minor planet at this place.
We have reference image without OT on 2016-08-13.21775 UT with unfiltered magnitude limit 20.2m.
There is Sloan star in 0.496" with r=23.049,i=21.904, and ALLWISE source.
The discovery and reference images are http://master.sai.msu.ru/static/OT/031556.82012719.0.png

MASTER OT J045821.16-105457.7 discovery - new pos. dwarf nova outburst, ampl>2.1m, no VIZIER data

MASTER-IAC auto-detection system discovered OT source at (RA, Dec) = 04h 58m 21.16s -10d 54m 57.7s on 2016-10-12.14498 UT with unfiltered m_OT=19.0m (mlim=19.9m).
The OT is seen in 2 images. There is no minor planet at this place. We have reference image without OT on 2016-03-09.88648 UT with unfiltered mlim=20.4m. There is no any sources in VIZIER database
Spectral observations are required.
The discovery and reference images are http://master.sai.msu.ru/static/OT/045821.16-105457.7.png

MASTER Global Robotic Net