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GRB 121229A

Redshift:
2.707 (VLT: absorption)
Host Galaxy:
Other Observatory Detections:
MPG/ESO (2.2m), MAXI/GSC, VLT

Time: 05:00:21
Trigger Number: 544347
Burst Advocate: Eda Sonbas

Burst Alert Telescope (BAT):

RA
(J2000)
Dec
(J2000)
90% Error a
Radius
T90 b Fluence c
(15-150 keV)
1-sec Peak d
Photon Flux
(15-150 keV)
Photon Index e
(15-150 keV)
190.095
12:40:22.8
-50.588
-50:35:16.8
2.8 n/a 4.6 (1.3) 0.1 (0.0) 2.43, PL (0.46)

90% error in parentheses,
a arcmin; b seconds; c 10-7 erg/cm2; d ph/cm2/sec; e PL = simple power-law, CPL = cutoff power-law

X-Ray Telescope (XRT):

RA
(J2000)
Dec
(J2000)
90% Error a
Radius
Time to First b
Observation
Early Flux c
(0.3-10 keV)
11 Hour Flux c
(0.3-10 keV)
24 Hour Flux c
(0.3-10 keV)
Initial d
LC Index
Spectral
Index
(Gamma)
Column e
Density
(NH)
12:40:24.31 -50:35:38.6 1.7 145.90 121 0.0004456618 0.00008566844 -5.382 2.18362 0.00000000000000345225

a arcsec; b seconds; c 10-11 erg/cm2/s; d temporal; e 1021 cm-2

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.

» XRT GRB Live Catalogue
» XRT Light Curves
» XRT Spectra

UltraViolet/Optical Telescope (UVOT):

RA
(J2000)
Dec
(J2000)
90% Error a
Radius
Time to First b
Observation
Magnitude Other Filter
Magnitudes
n/a n/a n/a 155 V>198.9 B>20.5
U>20.1
UVW1>20.0
UVM2>17.6
UVW2>20.1
White>21.2

a arcsec; b seconds

Comments:

UVOT: no detection

References:

BAT: GCN 14115; GCN 14123
XRT: GCN 14115; GCN 14121; GCN 14124; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 14115; GCN 14122
Radio:
Redshift: GCN 14120 (VLT)
Host:
Other: GCN Report 418.1

BAT Light Curve:

BAT Light Curve for GRBblc/121229A.png