Menu

GRB 130831A

Time: 13:04:16
Trigger Number: 568849
Burst Advocate: Lea Hagen

BAT Data:

RA: a 358.635
23:54:32.4
Dec: a 29.431
29:25:51.6
90% Error Radius: b 1.0
T90: c 32.5
Fluence: d 65 (0.2)
1s Peak Photon Flux: e 13.6 (0.6)
Photon Index: f 1.93, PL (0.05)

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 130831A

XRT Data:

RA: a 23:54:29.92
Dec: a 29:25:47.3
90% Error Radius: b 1.4
Time to First Observation: c 125.80
Early Flux: d 88.7
11 Hour Flux: d 0.23422308
24 Hour Flux: d 0.10099206
Initial Temporal Index: -3.677
Spectral Index (Gamma): 1.79449
Column Density (NH): e 0.0703922

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 23:54:29.89
Dec: a 29:25:46.2
90% Error Radius: b 0.74
Time to First Observation: c 191
V Magnitude: V=14.4
Other Filter Magnitudes: B=14.9
U=13.9
UVW1=13.9
UVM2=13.6
UVW2=14.8

a J2000; b arcsec; c seconds

Other Burst Info:

Redshift:
0.4791 (Gemini-North: absorption)
Host Galaxy:
Other Observatory Detections:
Faulkes North (2m), Faulkes South (2m), Weihai (1m), MITSuME (50cm), Gemini-North, Konus-Wind, Xinglong (60cm), Skynet/PROMPT (17"), Montarrenti Observatory (0.53m), Virtual Telescope (0.43m), iTelescope (0.32m), Taurus Hill Observatory (0.35m), TUBITAK T100 (1.0m), HJT (1.5m), SANTEL-650 (0.65m), VT-50 (0.5m), AZT-8 (0.7m), SANTEL-400AN, AZT-22, RTT150, MASTER II

Comments:

References:

BAT: GCN 15139; GCN 15155
XRT: GCN 15139; GCN 15147; GCN 15151; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 15139; GCN 15168
Radio:
Redshift: GCN 15144 (Gemini-North)
Host:
Other: