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GRB 130925A

Time: 04:11:24
Trigger Number: 571830
Burst Advocate: Amy Lien

BAT Data:

RA: a 41.186
02:44:44.6
Dec: a -26.146
-26:08:45.6
90% Error Radius: b 1.0
T90: c n/a
Fluence: d 410 (10)
1s Peak Photon Flux: e 7.3 (0.6)
Photon Index: f 1.85, CPL (0.14)

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 130925A

XRT Data:

RA: a 02:44:42.97
Dec: a -26:09:11.5
90% Error Radius: b 1.4
Time to First Observation: c 147.39
Early Flux: d 5860
11 Hour Flux: d 1.9280701
24 Hour Flux: d 0.9726881
Initial Temporal Index: -3.243
Spectral Index (Gamma): 2.69002
Column Density (NH): e 9.80725

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 157
V Magnitude: V>20.0
Other Filter Magnitudes: B>20.6
U>20.4
UVW1>21.1
UVM2>21.2
UVW2>20.7
white>22.0

a J2000; b arcsec; c seconds

Other Burst Info:

Redshift:
0.347 (VLT/UVES: emission)
0.35 (VLT/X-shooter: emission)
Host Galaxy:
White=22.9 (UVOT)
Other Observatory Detections:
MPG/ESO (2.2m), MAXI/GSC, VLT/UVES, VLT/X-shooter, Fermi (GBM), HJT (1.5m), INTEGRAL, Konus-Wind, NuSTAR

Comments:

XRT: The light curve behaviour is dominated by sharp, bright flares. Please see GCN 15254 for more detailed information.
UVOT: no detection

References:

BAT: GCN 15246; GCN 15257
XRT: GCN 15246; GCN 15251; GCN 15254; GCN 15280; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 15246; GCN 15266
Radio:
Redshift: GCN 15249 (VLT/UVES); GCN 15250 (VLT/X-shooter)
Host: GCN 15267 (UVOT); GCN 15489 (HST)
Other: GCN Report 465.1