MASTER: OT with ampl>7m and other
ATel #14586; T. Pogrosheva, Y. Kechin, A. Pozdnyakov, P. Balanutsa, V. Lipunov, V. Kornilov (Lomonosov MSU), R. Podesta, F. Podesta (OAFA), O. Gress(ISU), I. Gorbunov, E. Gorbovskoy, N. Tyurina, K. Zhirkov, A. Kuznetsov, V. Vladimirov, D. Vlasenko, D. Zimnukhov, V. Senik, V. Shumkov, A. Chasovnikov, E. Minkina, V. Topolev, D. Kuvshinov, F. Balakin(Lomonosov Moscow State University), C. Lopez, C. Francile (Observatorio Astronomico Felix Aguilar OAFA), D. A. H. Buckley (SAAO), R. Rebolo, M. Serra (The Instituto de Astrofisica de Canarias), N. Budnev, O. Ershova (Irkutsk State University, API), A. Tlatov, D. Dormidontov (Kislovodsk Solar Station of the Pulkovo Observatory) A. Gabovich, V. Yurkov (Blagoveschensk Educational State University)
on 30 Apr 2021; 16:53 UT
Credential Certification: Nataly Tyurina (tiurina@sai.msu.ru)
Subjects: Request for Observations, Cataclysmic Variable, Nova, Supernovae, Transient, Variables
MASTER OT J150231.16-830149.5 detection - outburst with amplitude more then 7m
MASTER-OAFA auto-detection system ( Lipunov et al., "MASTER Global Robotic Net", Advances in Astronomy, 2010, 30L )
discovered OT source at (RA, Dec) = 15h 02m 31.16s -83d 01m 49.5s on 2021-04-29.33208 UT.
The OT unfiltered is 14.0m (mlim=18.1).
The OT is seen in 15 images. There is no minor planet at this place.
We have reference images at 2019-02-16.29597 UT with unfiltered mlim=20.3m,
at 2021-04-07 05:14:19UT with unfiltered mlim=20.0, at 2016-08-04 07:06:12UT with mlim=21.12 (MASTER-SAAO).
It means, current outburst amplitude is more then 7m.
Spectral observations are required.
The discovery and reference images are available at:
http://master.sai.msu.ru/static/OT/150231.16-830149.5.png
MASTER OT J111652.54-551234.2 discovery
MASTER-OAFA auto-detection system ( Lipunov et al., "MASTER Global Robotic Net", Advances in Astronomy, 2010, 30L ) discovered OT source at (RA, Dec) = 11h 16m 52.54s -55d 12m 34.2s on 2021-04-28.95340 UT.
The OT magnitude in unfilter is 16.2m (mlim=18.5).
The OT is seen in 6 images. There is no minor planet at this place.
We have reference image on 2019-01-09.19553 UT with unfilter 18.2m.
Spectral observations are required.
The discovery and reference images are available at:
http://master.sai.msu.ru/static/OT/111652.54-551234.2_1.png
MASTER OT J111652.54-551234.2 discovery
MASTER-SAAO auto-detection system ( Lipunov et al., "MASTER Global Robotic Net", Advances in Astronomy, 2010, 30L ) discovered OT source at (RA, Dec) = 11h 58m 36.79s -56d 55m 18.8s on 2021-04-27.79653 UT.
The OT unfiltered magnitude is 16.7m (mlim=18.7).
The OT is seen in 3 images. There is no minor planet at this place.
We have reference image on 2014-12-23.01082 UT with unfiltered mlim= 20.6m.
Spectral observations are required.
The discovery and reference images are available at:
http://master.sai.msu.ru/static/OT/115836.79-565518.8.png
Current outburst
MASTER OT J045959.38-473808.5 ( AT2018bbc ) outburst detection at 2021-04-29.75788 UT with m_OT=15.9(unfiltered).
The detection and reference images are available at:
http://master.sai.msu.ru/static/OT/045959.38-473808.5.png
