GRB 090809
Time: 17:31:14
Trigger Number: 359530
Burst Advocate: Craig Markwardt
BAT Data:
| RA: a | 328.665 21:54:39.6 |
| Dec: a | -0.083 -00:04:58.8 |
| 90% Error Radius: b | 2.0 |
| T90: c | 5.4 |
| Fluence: d | 3.4 (0.5) |
| 1s Peak Photon Flux: e | 1.1 (0.2) |
| Photon Index: f | 1.34, PL (0.24) |
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)
XRT Data:
| RA: a | 21:54:43.20 |
| Dec: a | -00:05:01.4 |
| 90% Error Radius: b | 1.4 |
| Time to First Observation: c | 104.02 |
| Early Flux: d | n/a |
| 11 Hour Flux: d | 0.05008357 |
| 24 Hour Flux: d | 0.021830222 |
| Initial Temporal Index: | -1.064 |
| Spectral Index (Gamma): | 1.94644 |
| Column Density (NH): e | 8.30851 |
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 | 21:54:43.19 |
| Dec: a | -00:05:01.83 |
| 90% Error Radius: b | 0.6 |
| Time to First Observation: c | 108 |
| V Magnitude: | V=19.87 |
| Other Filter Magnitudes: | B>21.1 U>20.8 UVW1>20.7 UVM2>20.5 UVW2>21.6 White=19.53 |
a J2000; b arcsec; c seconds
Other Burst Info:
Redshift:2.737 (VLT)Host Galaxy:
Other Observatory Detections:
NOT, VLT, WHT
Comments:
References:
BAT: GCN 9754; GCN 9756
XRT: GCN 9754; GCN 9757; GCN 9759; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 9754; GCN 9758
Radio:
Redshift: GCN 9761 (VLT)
Host:
Other: