[vsnet-grb-info 22723] Subject: GRB 190613A: FRAM-ORM afterglow detection

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  24822
SUBJECT: Subject: GRB 190613A: FRAM-ORM afterglow detection
DATE:    19/06/13 20:37:13 GMT
FROM:    Martin Jelinek at Astro.Inst-AVCR,Ondrejov  <martin.jelinek at asu.cas.cz>

Martin Jelinek, Jan Strobl (ASU CAS Ondrejov, CZ),
Martin Masek, Petr Janecek, Sergey Karpov, Jakub Jurysek,
Jan Ebr, Ronan Cunniffe, Petr Travnicek and Michael Prouza
(Institute of Physics, Prague, CZ)

report:

The 25cm robotic telescope FRAM-ORM at La Palma (Spain)
reacted robotically to the alert of GRB190613A (Ambrosi et al,
GCNC 24798), starting with a series of 20 s unfiltered images
at 04:10:11 UT, i.e. 3 min post trigger.

We clearly detect the source reported by (Ambrosi et al, GCN
24798; Zheng & Filipenko, GCN 24801 and Lipunov et al, GCN
24803), decaying at a rate of alpha ~ 1.51. The brightnes of
the object was R = 18.2 +- 0.2 at an image centered at 04:25:15
UT, i.e. 18 min post burst.