GRB 050129
GCN Circular 3008
Subject
GRB 050129: Optical observations
Date
2005-02-03T20:56:46Z (21 years ago)
From
Javier Gorosabel at LAEFF-INTA, Madrid <jgu@laeff.esa.es>
J. Gorosabel, A.J. Castro-Tirado, A. de Ugarte Postigo,
M. Jel�nek and V. Casanova (IAA-CSIC, Granada), report:
"We acquired RI-band images of the faint INTEGRAL
GRB 050129 error box (Gotz et al., GCN Circ. 3003)
with the 1.5m telescope at Observatorio de Sierra
Nevada, as follows:
Date Obs. Exp. Time Filter Lim. Mag.
Feb 2005 UT (s) (3 sigma)
===========================================
1.2197-1.2506 4x300 R 22.0
1.2236-1.2662 7x300 I 21.5
-------------------------------------------
3.2078-3.2184 3x300 R 21.8
3.2214-3.2462 7x300 I 21.6
===========================================
Comparison between both epoch co-added images
did not reveal any variable source."
This message can be cited.
GCN Circular 3003
Subject
GRB 050129: a weak long GRB detected with INTEGRAL
Date
2005-01-31T09:01:13Z (21 years ago)
From
Diego Gotz at IASF-CNR <diego@mi.iasf.cnr.it>
D. Gotz, S. Mereghetti (IASF, Milano), A. Bodaghee, S. Shaw, M. Beck
(ISDC, Versoix) and J. Borkowski (CAMK, Torun) on behalf of the IBAS
Localization Team report:
A 20 s long GRB has been detected by IBAS in IBIS/ISGRI data at 20:03:03
UT on Jan. 29. Due to its faintness no automatic IBAS Alert has been
delivered. Its coordinates (J2000) are:
RA: 252.7998 [degrees]
DEC: -3.0788 [degrees]
with an uncertainty of 2.7 arcmin (90% c.l. radius).
Its peak flux (20-200 keV, 1s integration time) is about 0.26 ph (3E-08
erg)/cmsq/s, which classifies it among the faintest INTEGRAL GRBs.
This message can be cited.