GRB 090904B
Time: 01:24:18
Trigger Number: 361831
Burst Advocate: Valerio D'Elia
BAT Data:
| RA: a | 264.194 17:36:46.6 |
| Dec: a | -25.219 -25:13:08.4 |
| 90% Error Radius: b | 1.2 |
| T90: c | 47.0 |
| Fluence: d | 110 (0) |
| 1s Peak Photon Flux: e | 5.3 (0.9) |
| Photon Index: f | 1.59, 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 | 17:36:44.53 |
| Dec: a | -25:12:47.4 |
| 90% Error Radius: b | 1.4 |
| Time to First Observation: c | 134.26 |
| Early Flux: d | n/a |
| 11 Hour Flux: d | 0.06380465 |
| 24 Hour Flux: d | 0.02480556 |
| Initial Temporal Index: | 0.4707 |
| Spectral Index (Gamma): | 1.80909 |
| Column Density (NH): e | 11.9606 |
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 | 138 |
| V Magnitude: | V>19.08 |
| Other Filter Magnitudes: | B>20.08 U>20.41 White>22.17 |
a J2000; b arcsec; c seconds
Other Burst Info:
Redshift:Host Galaxy:
Other Observatory Detections:
Fermi (GBM), ESO/MPI (2.2m)
Comments:
UVOT: not detection
References:
BAT: GCN 9881; GCN 9890
XRT: GCN 9881; GCN 9887; GCN 9893; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 9881; GCN 9898
Radio:
Redshift:
Host:
Other: GCN Report 242.1