Skip to main content
Testing. You are viewing the public testing version of GCN. For the production version, go to https://gcn.nasa.gov.
New Announcement Feature, Code of Conduct, Circular Revisions. See news and announcements

GCN Circular 6335

Subject
GRB 070411: BART early limit
Date
2007-04-20T15:30:56Z (17 years ago)
From
Martin Jelinek at Inst.Astrophys.Andalucia,Granada <mates@iaa.es>
Jan Strobl  (ASU  Ondrejov),  Martin Jelinek  (IAA
CSIC  Granada),  Martin Nekola,  Filip Munz,  Rene
Hudec (ASU) and Petr Kubanek (IAA, U. Valencia)

report

The  robotic telescope  BART in  Ondrejov followed
automatically the  GRB 070411  (Moretti et al. GCN
6267), with  the first exposure starting 55.7s af-
ter  the GRB  trigger (15.9s  after receiving  the
message).

The beginning of the (unfiltered) optical observa-
tion is simultaneous to  the second gamma-ray peak
of this ~100s long GRB (Markwardt et al. GCN6274).

The  optical transient  (Moretti et al.  GCN 6267,
Kann et al. GCN6268)  was not detected, giving the
following limits:

start   end     limit	note
-----------------------------
55.7s   85.7s   R>15.4  30s, simultaneous to gamma
55.7s  167.9s   R>16.0  3x30s

This message may be cited
Looking for U.S. government information and services? Visit USA.gov