GCN Circular 3093
Subject
GRB050223: No XMM-Newton OM detection of afterglow emission
Date
2005-03-15T19:35:46Z (20 years ago)
From
Alexander Blustin at MSSL-UCL <ajb@mssl.ucl.ac.uk>
A. Blustin (MSSL), G. Branduardi-Raymont (MSSL), A. Breeveld
(MSSL), C. Brocksopp (MSSL), M. Cropper (MSSL), C. James
(MSSL), N. Loaring (MSSL), K. Mason (MSSL), K. McGowan (MSSL),
M. de Pasquale (MSSL), M. Page (MSSL), T. Poole (MSSL),
G. Ramsay (MSSL), S. Rosen (MSSL), C. Saxton (MSSL), P. Schady
(MSSL), K. Wu (MSSL), S. Zane (MSSL), H. Ziaeepour (MSSL) on
behalf of the XMM-Newton Optical Monitor team
The XMM-Newton Optical Monitor began observations of GRB050223
at 14:23:15 on 2005-02-23, about 11 hours after the initial
Swift BAT trigger (Mitani et al, GCN 3055). We detect no
source at the position of the XMM-Newton pn source
(Gonzalez-Riestra et al, GCN 3060). The estimated limiting
magnitudes (5-sigma) in each of the OM filters are as follows:
Filter Lim_Mag Duration T_start
B 21.22 4000 T+40449
UVW1 20.24 2500 T+60374
UVW1 20.49 4000 T+63181
UVM2 19.60 4000 T+67488
UVM2 19.56 4000 T+71795
UVW2 18.70 4000 T+76102
UVW2 18.67 4000 T+80409
UVW2 18.64 4000 T+84716
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