MASTER Net: 2 CV outbursts
ATel #12156; T. Pogrosheva, P. Balanutsa, V. Lipunov (Lomonosov MSU), D. Buckley (SAAO), A. Tlatov, V. Senik (KSS, Pulkovo observatory), V. Kornilov, E. Gorbovskoy, N. Tiurina, A. Kuznetsov, V. Vladimirov, D. Zimnukhov, D. Vlasenko (Lomonosov Moscow State University, SAI), O. Gress, N. Budnev (API ISU), A. Gabovich (BSPU), V. Shumkov, R. Rebolo Lopez, M. Serra-Ricart (IAC), R. Podesta, F. Podesta, C. Francile (OAFA), H. Levato (San Juan National University, Argentina)
on 2 Nov 2018; 14:24 UT
Credential Certification: Nataly Tyurina (tiurina@sai.msu.ru)
Subjects: Optical, Gamma Ray, Request for Observations, Cataclysmic Variable, Transient, Variables
MASTER OT J112941.32-444306.5 detection - OT with amplitude more then 3.6m
MASTER-SAAO auto-detection system ( Lipunov et al., "MASTER Global Robotic Net", Advances in Astronomy, 2010, 30L )
discovered OT source at (RA, Dec) = 11h 29m 41.32s -44d 43m 06.5s on 2018-11-02.09229 UT.
The OT unfiltered magnitude is 14.0m (mlim=18.9).
The OT is seen in 17 images.
We have reference image on 2015-01-18.97939 UT with unfiltered m_OT=17.6 (mlim=19.8m), so the amplitude of current outburst is more then 3.6m
There is also GALEX source.
Spectral observations are required.
The discovery and reference images are available at:
http://master.sai.msu.ru/static/OT/112941.32-444306.5.png
MASTER OT J052503.71+393358.9 detection - OT with ampl>2.2
MASTER-Kislovodsk auto-detection system discovered OT source at (RA, Dec) = 05h 25m 03.71s +39d 33m 58.9s on 2018-10-16.78661 UT.
The OT unfiltered magnitude is 17.8m (limit 18.9m).
The OT is seen in the following images:
Date, T_start_expos.UT, Unfiltered_magnitude, MASTER_Observatory
2018-10-16 19:05:56 17.8 MASTEr-Kislovodsk
2018-10-16 18:52:43 17.8 MASTER-Kislovodsk
2018-10-17 14:33:29 17.8 MASTER-Tunka
2018-10-17 14:23:25 17.8 MASTER-Tunka
We have reference image without OT on 2016-02-23.67905 UT with unfiltered magnitude limit 18.5m.
There is GSC2.3.2 star in 1" with red f_mag=20.10 and blue b_mag=20.12 so the amplitude of current outburst is more then 2.3m
Spectral observations are required.
The discovery and reference images are available at:
http://master.sai.msu.ru/static/OT/052503.71393358.9.png
MASTER Global Robotic Net
