Skip to main content
New Announcement Feature, Code of Conduct, Circular Revisions. See news and announcements

GCN Circular 2391

GRB 030913, optical candidate
2003-09-20T02:12:37Z (21 years ago)
Alberto Castro-Tirado at LAEFF-INTA <>
GRB 030913, possible optical counterpart

S. Guziy, A. de Ugarte Postigo, 
A.J. Castro-Tirado, J.Gorosabel (IAA-CSIC/STScI), 
P. Amado, Antonio Herrer�a (IAA-CSIC),
Pilar Ruiz-Lapuente (Univ. Barcelona), 
Javier M�ndez (ING, La Palma),
J. M. Castro Cer�n (STScI),
and A. Zurita (ING, La Palma)


"On Sep 18.04 UT (4.25 days after the burst) we imaged 80% 
of the HETE-II error box for GRB 030913 (Suzuki et al., 
GCNC 2383) with WHT at La Palma trough Johnson V filter. 
We detected an uncatalogued point like source of 
20.9 +/- 0.1 at the following coordinates +/- 2":
  RA(J2000) = 20:58:46.5
  DEC(J2000)= -02:20:59
On Sept 19.87 UT we imaged again the same field from the 1.5m
telescope at Sierra Nevada Observatory (OSN, Granada) and
detected an object at V mag = 23.6 +/- 0.5 on an equivalent
Images of the field are posted on:
Further images in R and B bands have been obtained that 
confirm the detection. Other observations are encouraged 
to confirm the relation of this object with GRB030913"

This message may be quoted.
Looking for U.S. government information and services? Visit