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GRB 130131B

Time: 19:10:08
Trigger Number: 547420
Burst Advocate: Mike Siegel

BAT Data:

RA: a 173.957
11:35:49.7
Dec: a 15.033
15:01:58.8
90% Error Radius: b 1.7
T90: c 4.30
Fluence: d 3.4 (0.4)
1s Peak Photon Flux: e 1.0 (0.2)
Photon Index: f 1.15, PL (0.20)

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 130131B

XRT Data:

RA: a 11:35:49.36
Dec: a 15:02:17.5
90% Error Radius: b 1.6
Time to First Observation: c 109.46
Early Flux: d n/a
11 Hour Flux: d 0.018749445
24 Hour Flux: d 0.008016333
Initial Temporal Index: -1.089
Spectral Index (Gamma): 2.22317
Column Density (NH): e 3.89587

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 113
V Magnitude: V>19.8
Other Filter Magnitudes: B>20.5
U>21.0
UVW1>20.4
UVM2>20.6
UVW2>21.1
White>22.0

a J2000; b arcsec; c seconds

Other Burst Info:

Redshift:
2.539 (Keck I: emission, host)
Host Galaxy:
g = 25.7, I = 24.9 (Keck I)
Other Observatory Detections:

Comments:

UVOT: no detection

References:

BAT: GCN 14159; GCN 14164
XRT: GCN 14159; GCN 14165; GCN 14176 ;Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 14159; GCN 14169
Radio:
Redshift: GCB 14286 (Keck I)
Host: GCB 14286 (Keck I)
Other: GCN Report 416.1