MASTER: OT Detection during Gravitational Wave LVC S190408an Soth Part Error Field Inspection
ATel #12644; T. Pogrosheva, V. Lipunov, E. Gorbovskoy, N. Tyurina, V. Kornilov, D. Vlasenko, V. Vladimirov, D. Zimnukhov, A. Kuznetsov, P. Balanutsa, I. Gorbunov, A. Chasovnikov, F. Balakin, D. Kuvshinov (Lomonosov MSU), R. Podesta, C. Lopez, C. Francile, F. Podesta (OAFA, SJNU), H. Levato (ICATE, SJNU), R. Rebolo, M. Serra, N. Lodieu(IAC), D. Buckley (SAAO), O. Gress, N. M. Budnev, O. Ershova (API ISU), V. Yurkov, A. Gabovich, Yu. Sergienko, D. Kobcev (BSPU), A. Tlatov, V. Senik, D. Dormidontov (KSS of Pulkovo observatory)
on 9 Apr 2019; 07:48 UT
Credential Certification: Nataly Tyurina (tiurina@sai.msu.ru)
Subjects: Optical, Request for Observations, Gravitational Waves, Transient, Variables
MASTER OT J140518.22-395309.9 discovery - OT inside south part of Ligo/Virgo S190408an, no known sources inside 5" in VIZIER
During MASTER-OAFA inspection of south part of LVC S190408an error-field
MASTER auto-detection system ( Lipunov et al., "MASTER Global Robotic Net",
Advances in Astronomy, 2010, 30L )
discovered OT source at (RA, Dec) = 14h 05m 18.22s -39d 53m 09.9s on 2019-04-09.07809 UT.
The OT unfiltered magnitude is 17.4m (mlim=19.1m).
The OT is seen in 2 MASTER LVC inspect images. There is no minor planet at this place.
We have reference image without OT on 2018-05-19.13417 UT with 20.2 unfiltered magnitude limit.
There is no any sources in VIZIER database, it means 22m POSS limit and more then 4.6m of current outburst amplitude in the case, if it's not connected with LVC.
Spectral observations are required.
The discovery and reference images are available at:
http://master.sai.msu.ru/static/OT/140518.22-395309.9.png
MASTER cover map of Ligo/Virgo S190408an error-field inspection will be available on-line at:
http://master.sai.msu.ru/static/LVC/MASTER_S190408an_map.jpg
List of Optical Transients discovered by MASTER
MASTER Global Robotic Net
