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MASTER-SAAO: PSN in possibly AGN galaxy and 2 new dwarf nova outbursts

ATel #9374; V. Shumkov, P. Balanutsa, V. Lipunov (Lomonosov MSU), D. Buckley (SAAO), E. Gorbovskoy, N. Tyurina, A. Kuznetsov, V. Kornilov, D. Kuvshinov, D. Vlasenko (Lomonosov Moscow State University, SAI), S. Potter, A. Kniazev (South African Astronomical Observatory), N. Budnev, O. Gress, K. Ivanov (API, Irkutsk State University)
on 13 Aug 2016; 06:04 UT
Credential Certification: Nataly Tyurina (tiurina@sai.msu.ru)

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

Referred to by ATel #: 9385

MASTER OT J001706.60-382224.8 discovery - PSN in the galaxy with AGN?

MASTER-SAAO auto-detection system ( Lipunov et al., "MASTER Global Robotic Net", Advances in Astronomy, 2010, 30L ) discovered OT source at (RA, Dec) = 00h 17m 06.60s -38d 22m 24.8s on 2016-08-09.01954 UT.
The OT unfiltered magnitude is 18.6m (mlim=20.4m). There are 2 images with OT on 2016-08-09 00:39:10, 00:28:08UT. There is no minor planet at this place. We have reference image without OT on 2015-10-13.86916 UT with unfiltered magnitude limit 20.9m.
There is no any sources in VIZIER database inside 5". There is extended source at POSS images in 7.7" - possibly host galaxy for SN scenario. In this case this galaxy has active nuclear, there is a GALEX source in 6.6" with NUV=22.9+-0.4.
Spectral observations are required. The discovery and reference images are available at: http://master.sai.msu.ru/static/OT/001706.60-382224.8.png

MASTER OT J115434.33-485934.6 discovery - new dwarf nova outburst, Ampl>4.4, no VIZIER known source
MASTER-SAAO auto-detection system discovered OT source at (RA, Dec) = 11h 54m 34.33s -48d 59m 34.6s on 2016-08-11.73176 UT.
The OT unfiltered magnitude is 18.9m (mlim=19.7m). The OT is seen in 3 images.
There are 2 images on 2016-08-04 18:32:38.131 with m_OT=17.6 We have reference image without OT on 2016-04-16.04848 UT with unfiltered magnitude limit 20.7m.
There was previous outburst on 2015-01-11 22:59:46.041 with m_OT=17.9 in MASTER-SAAO database.
There is no any source in VIZIER database, it means Ampl>4.4m of the current outburst.
Spectral observations are required. The discovery and reference images are available at: http://master.sai.msu.ru/static/OT/115434.33-485934.6.png

MASTER OT J202058.97+004625.2 discovery - new dwarf nova outburst, Ampl>4m, no VIZIER known sources

MASTER-SAAO auto-detection system discovered OT source at (RA, Dec) = 20h 20m 58.97s +00d 46m 25.2s on 2016-08-09.80829 UT.
The OT unfiltered magnitude is 18.0m (mlim=19.1m).
The OT is seen in 2 images. There is no minor planet at this place. We have reference image without OT on 2015-08-20.80381 UT with unfiltered magnitude limit 19.0m.
There is no known sources in VIZIER database (22m POSS limits), it means Ampl>4m of current outburst
Spectral observations are required. The discovery and reference images are available at: http://master.sai.msu.ru/static/OT/202058.97004625.2.png

List of Optical Transients discovered by MASTER

MASTER Global Robotic Net