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GRB 111225A

Time: 03:50:37
Trigger Number: 510341
Burst Advocate: Mike Siegel

BAT Data:

RA: a 13.158
00:52:37.9
Dec: a 51.573
51:34:22.8
90% Error Radius: b 1.3
T90: c 106.8
Fluence: d 13 (1.2)
1s Peak Photon Flux: e 0.7 (0.1)
Photon Index: f 1.70, PL (0.15)

90% error in parentheses,
a J2000; b arcmin; c seconds; d 10-7 erg/cm2 (15-150 keV); e ph/cm2/sec (15-150 keV); f PL = simple power-law, CPL = cutoff power-law (15-150 keV)

BAT Light Curve:

BAT Light Curve for GRB 111225A

XRT Data:

RA: a 00:52:37.32
Dec: a 51:34:18.3
90% Error Radius: b 1.6
Time to First Observation: c 88.14
Early Flux: d 296
11 Hour Flux: d 0.013042395
24 Hour Flux: d 0.005845995
Initial Temporal Index: -0.5722
Spectral Index (Gamma): 1.80018
Column Density (NH): e 2.086314

Note: Please be aware that only the very basic temporal and spectral quantities are reported here. You are strongly encouraged to see the referenced GCN circulars for full details.
a J2000; b arcsec; c seconds; d 10-11 erg/cm2/s (0.3-10 keV); e 1021 cm-2

» XRT GRB Live Catalogue
» XRT Light Curves
» XRT Spectra

UVOT Data:

RA: a 00:52:37.22
Dec: a 51:34:19.5
90% Error Radius: b 0.67
Time to First Observation: c 95
V Magnitude: V>21.1
Other Filter Magnitudes: U_fc=19.46
U>20.66
UVW1>20.4
UVM2>20.5
UVW2=21.36

a J2000; b arcsec; c seconds

Other Burst Info:

Redshift:
0.297 (GTC: absorption)
Host Galaxy:
Other Observatory Detections:
TAROT (25cm), Super-LOTIS (0.6m), TNT, CAHA (1.23m), Keck I (10m), RAPTOR, Shajn Telescope, GTC (10.4)

Comments:

GTC: Archeological redshift

References:

BAT: GCN 12720; GCN 12726
XRT: GCN 12720; GCN 12724; GCN 12727; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 12720; GCN 12735
Radio:
Redshift: GCN 16079 (GTC)
Host:
Other: GCN Report 408.1