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GRB 080721

Time: 10:25:16
Trigger Number: 317508
Burst Advocate: Frank Marshall

BAT Data:

RA: a 224.481
14:57:55.4
Dec: a -11.709
-11:42:32.4
90% Error Radius: b 1.3
T90: c 16.2
Fluence: d 120 (10)
1s Peak Photon Flux: e 20.9 (1.8)
Photon Index: f 1.11, PL (0.08)

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 080721

XRT Data:

RA: a 14:57:55.85
Dec: a -11:43:24.9
90% Error Radius: b 1.4
Time to First Observation: c 108.03
Early Flux: d 50
11 Hour Flux: d 0.618677
24 Hour Flux: d 0.16855054
Initial Temporal Index: -0.6266
Spectral Index (Gamma): 1.9433
Column Density (NH): e 6.27022

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 14:57:55.855
Dec: a -11:43:24.54
90% Error Radius: b 0.5
Time to First Observation: c 118
V Magnitude: V=14.98
Other Filter Magnitudes: B=16.56
U=16.58
UVW1>18.01
UVM2>17.58
UVW2>18.03
White=14.58

a J2000; b arcsec; c seconds

Other Burst Info:

Redshift:
2.602 (TNG: absorption)
2.591 (NOT: absorption)
Host Galaxy:
Other Observatory Detections:
Lulin (1m), Konus-Wind, TNG, NOT

Comments:

References:

BAT: GCN 7988; GCN 7992
XRT: GCN 7988; GCN 7989; GCN 7993; GCN 7994; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 7988; GCN 7991; GCN 7996
Radio:
Redshift: GCN 7997 (TNG); GCN 7998 (NOT)
Host:
Other: GCN Report 156.1