GRB 081222
Time: 04:53:59
Trigger Number: 337914
Burst Advocate: Dirk Grupe
BAT Data:
| RA: a | 22.748 01:30:59.5 |
| Dec: a | -34.095 -34:05:42.0 |
| 90% Error Radius: b | 1.0 |
| T90: c | 24 |
| Fluence: d | 48 (1) |
| 1s Peak Photon Flux: e | 7.7 (0.2) |
| Photon Index: f | 1.08, CPL (0.15) |
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 | 01:30:57.69 |
| Dec: a | -34:05:43.0 |
| 90% Error Radius: b | 1.4 |
| Time to First Observation: c | 51.75 |
| Early Flux: d | 391 |
| 11 Hour Flux: d | 0.2564814 |
| 24 Hour Flux: d | 0.0810257 |
| Initial Temporal Index: | -2.1 |
| Spectral Index (Gamma): | 1.99296 |
| Column Density (NH): e | 2.97084 |
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 | 01:30:57.59 |
| Dec: a | -34:05:41.49 |
| 90% Error Radius: b | 0.5 |
| Time to First Observation: c | 60 |
| V Magnitude: | V=16.20 |
| Other Filter Magnitudes: | B=16.86 U=16.32 UVW1>20.9 UVM2>21.0 UVW2>21.1 White=14.84 |
a J2000; b arcsec; c seconds
Other Burst Info:
Redshift:~2.7 (UVOT)Host Galaxy:
2.77 (Gemini-South: absorption)
2.77 (Gemini-North: absorption)
Other Observatory Detections:
REM (60cm), ESO/MPI (2.2m), Konus-Wind, Faulkes South, Gemini-South, Fermi, Gemini-North, MITSuME (50cm)
Comments:
References:
BAT: GCN 8691; GCN 8709
XRT: GCN 8691; GCN 8705; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 8691; GCN 8696; GCN 8712
Radio:
Redshift: GCN 8712 (UVOT); GCN 8713 (Gemini-South); GCN 8718 (Gemini-North)
Host:
Other: GCN Report 190.1