Possible Dwarf Nova detection during Gravitational Wave LVC S190707q inspection
ATel #12916; T. Pogrosheva, V. Lipunov (Lomonosov MSU), R. Podesta, C. Lopez, C. Francile, F. Podesta (OOAFA, SJNU), H. Levato (ICATE, SJNU), D. Buckley (SAAO), R. Rebolo, M. Serra (IAC), N. Tiurina, E. Gorbovskoy, A. Kuznetsov, O. Gress, I. Gorbunov, P. Balanutsa, V. Kornilov, V. Vladimirov, D. Zimnukhov, F. Balakin, V. Senik, V. Grinshpun, D. Kuvshinov (Lomonosov MSU), V. Yurkov, A. Gabovich, Yu. Sergienko, (BSPU), O. Gress, N. M. Budnev, O. Ershova (API ISU), V. Shumkov, A. Tlatov, D. Dormidontov, A. V. Parhomenko (KSS of the Pulkovo Observatory)
on 10 Jul 2019; 11:34 UT
Credential Certification: Nataly Tyurina (tiurina@sai.msu.ru)
Subjects: Optical, Cataclysmic Variable
MASTER OT J195321.61+181050.3 discovery - preliminary dwarf nova outburst with ampl>4m
MASTER-Kislovodsk auto-detection system discovered OT source at (RA, Dec) = 19h 53m 21.61s +18d 10m 50.3s on 2019-07-07.83846 UT during LVC S190707q inspect (GCN #25012, GCN #25022).
The OT unfiltered magnitude is 16.6m (limit 17.9m).
The OT is seen in 4 images. There is no minor planet at this place.
We have reference image without OT on 2014-08-27.87829 UT with unfiltered magnitude limit 18.8m.
Spectral observations are required.
The discovery and reference images are available at:
http://master.sai.msu.ru/static/OT/195321.61181050.3.png
List of Optical Transients discovered by MASTER
Global MASTER Robotic Net
