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GRB 131227A

Time: 04:44:51
Trigger Number: 582184
Burst Advocate: Sam Oates

BAT Data:

RA: a 67.369
04:29:28.6
Dec: a 28.879
28:52:44.4
90% Error Radius: b 1.3
T90: c 18.0
Fluence: d 8.4 (0.6)
1s Peak Photon Flux: e 1.1 (0.2)
Photon Index: f 1.36, PL (0.12)

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 131227A

XRT Data:

RA: a 04:29:30.78
Dec: a 28:52:58.9
90% Error Radius: b 1.4
Time to First Observation: c 57
Early Flux: d 60.1
11 Hour Flux: d 0.024683603
24 Hour Flux: d 0.008876693
Initial Temporal Index: -0.9131
Spectral Index (Gamma): 1.92381
Column Density (NH): e 4.97208

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 66
V Magnitude: V>19.7
Other Filter Magnitudes: B>21.1
U>20.9
UVW>20.1
UVW2>20.5
White>21.9

a J2000; b arcsec; c seconds

Other Burst Info:

Redshift:
~5.3 (Gemini-North)
Host Galaxy:
Other Observatory Detections:
KAIT (0.76m), Xinglong (2.16m)

Comments:

UVOT: no detection

References:

BAT: GCN 15616; GCN 15620
XRT: GCN 15616; GCN 15618; GCN 15623; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 15616; GCN 15621
Radio:
Redshift: GCN 15624 (Gemini-North)
Host:
Other: