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MASTER Net: optical transients

ATel #11106; V. Shumkov, P. Balanutsa, T. Pogrosheva, V. Lipunov (Lomonosov MSU), R. Podesta (OAFA), H. Levato (ICATE), R. Rebolo Lopez, M. Serra-Ricart(IAC), D. Buckley (SAAO), E. Gorbovskoy, V. Kornilov, N. Tiurina, P. Balanutsa, A. Kuznetsov, V. Chazov, D. Vlasenko, V. Vladimirov, O. Gress, I. Gorbunov(Lomonosov Moscow State University, SAI), C. Lopez, F. Podesta, C. Francile (Observatorio Astronomico Felix Aguilar San Juan University), C. Saffe (Instituto de Ciencias Astronomicas, de la Tierra y del Espacio)
on 29 Dec 2017; 13:30 UT
Credential Certification: Nataly Tyurina (tiurina@sai.msu.ru)

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

MASTER OT J110101.63-402718.4 discovery - new OT, ampl>5m

MASTER-OAFA auto-detection system ( Lipunov et al., "MASTER Global Robotic Net", Advances in Astronomy, 2010, 30L )
discovered OT source at (RA, Dec) = 11h 01m 01.63s -40d 27m 18.4s on 2017-12-29.21464 UT
also (ATEL #11105) during Fermi trigger 536085249 inspection .

The OT unfiltered magnitude is 17.0m (mlim=18.5m).
The OT is seen in 2 images. There is no minor planet at this place.
We have reference image without OT on 2017-11-12.32284 UT with 18.8 unfiltered magnitude limit.
There is no any sources in VIZIER database, it means 22m POSS limit in history and more then 5m of current outburt amplitude.

Spectral observations are required.
The discovery and reference images are available at:
http://master.sai.msu.ru/static/OT/110101.63-402718.4.png

MASTER OT J122255.80-494229.3 discovery - blue OT, ampl>4.4m

MASTER-OAFA auto-detection system discovered OT source at (RA, Dec) = 12h 22m 55.80s -49d 42m 29.3s on 2017-12-29.20721 UT.
The OT unfiltered magnitude is 17.6m (mlim=18.0m).
The OT is seen in 2 images. There is no minor planet at this place.
We have reference image without OT on 2017-03-22.20867 UT with 19.6m unfiltered magnitude limit.
There is only The Guide Star Catalog source with blue jmag=17.9 in VIZIER database, it also means 22m POSS limit and more then 4.6m of current outburt amplitude. Spectral observations are required.
The discovery and reference images are available at:
http://master.sai.msu.ru/static/OT/122255.80-494229.3.png

MASTER OT J121930.26+011030.4 discovery - OT, ampl>5m

MASTER-IAC auto-detection system discovered OT source at (RA, Dec) = 12h 19m 30.26s +01d 10m 30.4s on 2017-12-29.23730 UT.
The OT unfiltered magnitude is 19.0m (limit 19.8m).
The OT is seen in 6 images. There is no minor planet at this place.
We have reference image without OT on 2016-02-11.14671 UT with unfiltered magnitude limit 20.8m.
Spectral observations are required.
The discovery and reference images are available at:
http://master.sai.msu.ru/static/OT/121930.26011030.4.png

MASTER OT J114608.91+404638.5 discovery - UVCet flare

NMASTER-IAC auto-detection system discovered OT source at (RA, Dec) = 11h 46m 08.91s +40d 46m 38.5s on 2017-12-28.14959 UT.
The OT is seen in 3 images:
(UT), unfiltered_mag 2017-12-28 03:33:43 18.3+-0.2
2017-12-28 03:35:25 17.6+-0.1
2017-12-28 03:37:30 18.6+-0.2
There is SDSS red star, so the first classification is UVCet flare
We have reference image without OT on 2016-02-13.02882 UT with unfiltered magnitude limit 20.8m.
The discovery and reference images are available at:
http://master.sai.msu.ru/static/OT/114608.91404638.5.png

MASTER OT J060111.26-703607.8 discovery - QSO flare

MASTER-OAFA auto-detection system discovered OT source at (RA, Dec) = 06h 01m 11.26s -70d 36m 07.8s on 2017-12-26.21008 UT.
The OT unfiltered magnitude is 18.4m (mlim=18.6m).
The OT is seen in 6 images. There is no minor planet at this place.
We have reference image without OT on 2017-03-29.13072 UT with 19.2 unfilt.mlim.
The discovery and reference images are available at:
http://master.sai.msu.ru/static/OT/060111.26-703607.8.png

List of Optical Transients discovered by MASTER

MASTER Global Robotic Net