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GRB 130831B

Time: 13:48:19
Trigger Number: 568855
Burst Advocate: Daniele Malesani

BAT Data:

RA: a 192.454
12:49:49.0
Dec: a -29.187
-29:11:13.2
90% Error Radius: b 2.1
T90: c 37.8
Fluence: d 14 (2)
1s Peak Photon Flux: e 2.4 (0.5)
Photon Index: f 1.88, PL (0.21)

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 130831B

XRT Data:

RA: a 12:49:40.89
Dec: a -29:10:59.9
90% Error Radius: b 1.4
Time to First Observation: c 127.03
Early Flux: d n/a
11 Hour Flux: d 0.09176296
24 Hour Flux: d 0.034865137
Initial Temporal Index: 0.1477
Spectral Index (Gamma): 2.06869
Column Density (NH): e 1.63839

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 n/a
Dec: a n/a
90% Error Radius: b n/a
Time to First Observation: c 130
V Magnitude: V>19.7
Other Filter Magnitudes: B>20.5
U>20.3
UVW1>20.2
UVM2>20.9
UVW2>20.7
White>20.9

a J2000; b arcsec; c seconds

Other Burst Info:

Redshift:
Host Galaxy:
Other Observatory Detections:

Comments:

UVOT: no detection

References:

BAT: GCN 15141; GCN 15163
XRT: GCN 15141; GCN 15149; GCN 15154; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 15141; GCN 15160
Radio:
Redshift:
Host:
Other: GCN Report 477.1