GCN Circular 3059
Subject
INTEGRAL detection of GRB 050223
Event
Date
2005-02-23T13:44:54Z (22 years ago)
From
Sandro Mereghetti at IASF/CNR <sandro@mi.iasf.cnr.it>
S. Mereghetti, D. Gotz (IASF, Milano), N. Mowlavi, S. Shaw, M. Beck
(ISDC, Versoix) and J. Borkowski (CAMK, Torun) on behalf of the IBAS
Localization Team report:
GRB 050223, discovered by Swift (Giommi et al. GCN 3054, Mitani et al.
GCN 3055), has been also detected by the IBIS/ISGRI instrument on board
INTEGRAL.
The burst occurred during a 200 sec long time interval in which the
automatic distribution of IBAS Alerts was disabled due to the temporary
switch-off of one of the 8 modules of the IBIS/ISGRI detector.
The GRB coordinates (J2000) derived from an off-line analysis are:
RA: 271.4002 [degrees]
DEC: -62.4739 [degrees]
with an uncertainty of 3 arcmin (90% c.l. radius).
The peak flux measured with IBIS/ISGRI is 0.6 ph/cmsq/s (20-200 keV, 1 s
integration time).
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