MASTER PSN and Flares discovery

ATel #3954; P. Balanutsa, P. Podvorotniy, V. Shumkov, V. Lipunov, E. Gorbovskoy, N. Tiurina, V. Kornilov, A. Belinski, N. Shatskiy, V. Chazov, A. Kuznetsov, D. Zimnukhov (Moscow State University, SAI) V. Krushinsky, I. Zalozhnih, A. Popov (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), S. Shurpakov (MASTER team members), Hugo Levato and Carlos Saffe Instituto de Ciencias Astronomicas, de la Tierra y del Espacio (ICATE) Claudio Mallamaci, Carlos Lopez and Federico Podest, Observatorio Astronomico Felix Aguilar (OAFA)
on 4 Mar 2012; 12:03 UT
Credential Certification: Vladimir Lipunov (lipunov2007@gmail.com)

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MASTER105345.09+541805.1 - PSN

MASTER-Tunka auto-detection system discovered OT source at (RA, Dec) = 10h 53m 45.09s +54d 18m 05.1s on 2012-02-26.68862 UT. The OT unfiltered magnitude is 18.4m (limit 20.1 m). The OT is seen in 4 images. There is no minor planet at this place.

There are two SDSS galaxies J105345.04+541804.6 (offset~ 0".6) and J105345.04+541804.2 (offset~ 1".0).

We have reference image without OT on 2011-04-05.56874 UT with unfiltered magnitude limit 21.0m.

Spectral observations are required.

The discovery and reference images are available at: http://master.sai.msu.ru/static/OT/105345.09541805.1_2.png

MASTER152537.90-075640.7 - high state of the known CV

MASTER-Kislovodsk auto-detection system discovered OT source at (RA, Dec) = 15h 25m 37.90s -07d 56m 40.7s on 2012-02-28.10059 UT. The OT unfiltered magnitude is 17.4m (limit 19.1m). The OT is seen in 3 images. There is no minor planet at this place.

There is AAVSO International Variable Star CSS 100706:152538-075641 UGem type. Offset is 1".2

We have reference image without OT on 2010-04-19.95799 UT with unfiltered magnitude limit 19.9m.

Spectral observations are required.

The discovery and reference images are available at: http://master.sai.msu.ru/static/OT/152537.91-075640.7_1.png

MASTER162410.89+245810.8 - M8 star flare

MASTER-Tunka auto-detection system discovered OT source at (RA, Dec) = 16h 24m 10.89s +24d 58m 10.8s on 2012-02-24.87938 UT. The OT unfiltered magnitude is 18.8m (limit 19.7m).

The OT is seen in 2 images. There is no minor planet at this place.

We have reference image without OT on 2011-05-30.74221 UT with unfiltered magnitude limit 19.8m. Spectral observations are required. The discovery and reference images are available at: http://master.sai.msu.ru/static/OT/162410.89245810.8.png

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