GRB 081008
Time: 19:58:09
Trigger Number: 331093
Burst Advocate: Judy Racusin
BAT Data:
| RA: a | 279.968 18:39:52.3 |
| Dec: a | -57.433 -57:25:58.8 |
| 90% Error Radius: b | 1.1 |
| T90: c | 185.5 |
| Fluence: d | 43 (2) |
| 1s Peak Photon Flux: e | 1.3 (0.1) |
| Photon Index: f | 1.69, PL (0.07) |
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:
XRT Data:
| RA: a | 18:39:49.92 |
| Dec: a | -57:25:54.7 |
| 90% Error Radius: b | 1.4 |
| Time to First Observation: c | 87.15 |
| Early Flux: d | 150 |
| 11 Hour Flux: d | 0.07461 |
| 24 Hour Flux: d | 0.018765324 |
| Initial Temporal Index: | 0.6652 |
| Spectral Index (Gamma): | 1.98207 |
| Column Density (NH): e | 1.37301 |
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 | 18:39:49.877 |
| Dec: a | -57:25:52.87 |
| 90% Error Radius: b | 0.6 |
| Time to First Observation: c | 96 |
| V Magnitude: | V=15.64 |
| Other Filter Magnitudes: | B=15.79 U=15.19 UVW1=17.03 UVM2>19.16 UVW2>19.53 White=14.96 |
a J2000; b arcsec; c seconds
Other Burst Info:
Redshift:1.9685 (VLT: absorption)Host Galaxy:
1.967 (Gemini-South: absorption)
R=20.75 (Gemini-South)Other Observatory Detections:
ROTSE-IIIc, VLT, Gemini-South, CTIO (1.3m)
Comments:
References:
BAT: GCN 8344; GCN 8351
XRT: GCN 8344; GCN 8347; GCN 8349; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 8344; GCN 8348
Radio:
Redshift: GCN 8345; GCN 8350 (VLT); GCN 8346 (Gemini-South)
Host: GCN 8372 (Gemini-South)
Other: GCN Report 173.1