[vsnet-grb-info 18280] GRB 160720A: Lomonosov BDRG gamma ray detection and MASTER limit

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  19728
SUBJECT: GRB 160720A: Lomonosov BDRG gamma ray detection and MASTER limit
DATE:    16/07/21 20:28:26 GMT
FROM:    Vladimir Lipunov at Moscow State U/Krylov Obs  <lipunov at xray.sai.msu.ru>

A.M.Amelushkin, V.O.Barinova, A.V.Bogomolov, V.V.Bogomolov, A.F.Iyudin,
V.V.Kalegaev, M.I.Panasyuk, V.L. Petrov, S.I.Svertilov, I.V.Yashin
Physics Department, Skobel`tsyn Institute of Nuclear Physics, Moscow State 
University.

I. Park, J. Lee, S. Jeong
Department of Physics, Sungkyunkwan University, Seobu-ro, Jangangu, 
Suwonsi, Korea

V. Lipunov, E.S. Gorbovskoy,   N.Tyurina, V.Kornilov,
P.Balanutsa,  A.Kuznetsov, D.Kuvshinov,
Lomonosov Moscow State University, Sternberg Astronomical Institute

R. Rebolo, M. Serra Ricart, N. Lodieu, G. Israelian
The Instituto de Astrofisica de Canarias

At 18:23:55.00 UT on 20 July 2016, the Lomonosov BDRG  Gamma-ray Burst 
Monitor (http://lomonosov.sinp.msu.ru/en/scientific-equipment-2/bdrg )
triggered GRB 160720A (Hamburg and Burns, GCN 19724).
GRB 160720A has  complicated LC, duration >87s, very
with  intensive peak between 18:25:12 - 18:25:22 .
Peak intensity >30 photons/cm2*s in the range 10-800 s.

This Notice was ground-generated.

MASTER-IAC robotic telescope (MASTER-Net: http://observ.pereplet.ru) 
located in IAC (Tenerife) was cavered IPN error box (Hurley et al GCN 
19726)   GRB160720A error-box   23696 sec 
after notice time and 30794  sec after trigger time at 2016-07-21 02:57:11 
UT. The weather is  determined by Sahara dust. The 5-sigma upper limit
  is about 16.5  mag.

  The message may be cited.