GCN Circular 1915
Subject
GRB 030227 optical afterglow
Event
Date
2003-03-03T08:01:13Z (23 years ago)
Edited On
2024-11-18T10:04:32Z (a year ago)
From
Javier Gorosabel at LAEFF-INTA, Madrid <jgu@laeff.esa.es>
Edited By
Judith Racusin at NASA/GSFC <judith.racusin@nasa.gov> on behalf of Leo P. Singer at NASA/GSFC <leo.p.singer@nasa.gov>
J. Gorosabel (IAA-CSIC/STScI), A.J. Castro-Tirado,
D. Reverte, J. Vílchez (IAA-CSIC),
J.M. Castro Cerón (STScI), A. de Ugarte Postigo,
S. Guziy (IAA-CSIC) and S. Martínez (Univ. de Valencia)
report:
"We have obtained a second epoch observation
covering the INTEGRAL error box for GRB 030227
(Gotz et al. GCN Circ. 1895, 1896) with the 2.5 m
Isaac Newton Telescope at the Observatorio del Roque de
los Muchachos (Canary Islands, Spain). Three R-band
frames (600 s exposure time each) have been obtained
on Feb 28.95 UT. Within the X-ray source error box
given by XMM-Newton (Loiseau et al. GCN Circ. 1901),
the object suggested by Castro-Tirado et al. (GCN Circ. 1904)
as a possible afterglow candidate with R = 23.3
(this value supersedes the one given in GCN Circ. 1904)
is not detected down to R = 24.2. This confirms its
relationship to GRB 030227, also proposed by Soderberg
et al. (GCN Circ. 1906) and Berger et al. (GCN Circ. 1910)."
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