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GRB 091109B

Time: 21:49:03
Trigger Number: 375409
Burst Advocate: Sam Oates

BAT Data:

RA: a 112.750
07:31:00.0
Dec: a -54.092
-54:05:31.2
90% Error Radius: b 1.2
T90: c 0.3
Fluence: d 1.9 (0.2)
1s Peak Photon Flux: e 5.4 (0.4)
Photon Index: f 0.71, PL (0.13)

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 091109B

XRT Data:

RA: a 07:30:56.66
Dec: a -54:05:24.6
90% Error Radius: b 2.4
Time to First Observation: c 78.16
Early Flux: d n/a
11 Hour Flux: d 0.008569311
24 Hour Flux: d 0.004939574
Initial Temporal Index: -0.7061
Spectral Index (Gamma): 2.055
Column Density (NH): e 1.891042

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 296
V Magnitude: V>20.96
Other Filter Magnitudes: B>21.78
U>21.61
UVW1>21.44
UVM2>20.87
UVW2>20.52
White>22.09

a J2000; b arcsec; c seconds

Other Burst Info:

Redshift:
Host Galaxy:
Other Observatory Detections:
VLT, Suzaku

Comments:

UVOT: no detection

References:

BAT: GCN 10148; GCN 10152
XRT: GCN 10148; GCN 10151; GCN 10155; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 10148; GCN 10157
Radio:
Redshift:
Host:
Other: GCN Report 259.1