MASTER optical activity detection of PKS B1406-076
ATel #13887; K. Zhirkov, V. Lipunov, V. Kornilov (Lomonosov MSU), R. Rebolo, M. Serra-Ricart (IAC), D. Buckley (SAAO), R. Podesta, F. Podesta (OAFA), E. Gorbovskoy, N. Tiurina (Lomonosov MSU), O. Gress, N. Budnev (ISU), A. Gabovich (BSPU), A. Tlatov (KSS, Pulkovo observatory)
on 22 Jul 2020; 17:58 UT
Credential Certification: Nataly Tyurina (tiurina@sai.msu.ru)
Subjects: Optical, Gamma Ray, Request for Observations, AGN, Blazar
Referred to by ATel #: 13906
MASTER Global Robotic Net ( Lipunov et al., "MASTER Global Robotic Net", Advances in Astronomy, 2010, 30L )
reports on an enhanced optical activity of the flaring blazar PKS B1406-076 detected by Fermi-LAT (Buson et al. ATel #13882).
MASTER-IAC and MASTER-OAFA observed the object on the 14th of July and 14th of June, i.e. 4 days and a month before the flare.
Date magnitude Filter Facility
2020-06-14 17.0 C MASTER-OAFA
2020-07-14 16.1 C MASTER-IAC
We used GAIA catalog for flux calibration.
We conclude that before a gamma-ray flare object had increased its optical flux by at least a magnitude since 14th of June.
We encourage further multi-wavelength observations of this object.
MASTER Global Robotic Net
