GRB 240809A
Time: 08:30:29
Trigger Number: 1247745
Burst Advocate: Phil Evans
BAT Data:
| RA: a | 237.545 15:50:10.8 |
| Dec: a | -2.331 -02:19:51.6 |
| 90% Error Radius: b | 1.0 |
| T90: c | 72.86 |
| Fluence: d | 97 (2) |
| 1s Peak Photon Flux: e | 12.8 (0.4) |
| Photon Index: f | 1.17, PL (0.05) |
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 | 15:50:10.58 |
| Dec: a | -02:19:04.3 |
| 90% Error Radius: b | 1.9 |
| Time to First Observation: c | 88.31 |
| Early Flux: d | 467 |
| 11 Hour Flux: d | 0.70414684 |
| 24 Hour Flux: d | 0.202382566 |
| Initial Temporal Index: | -1.016 |
| Spectral Index (Gamma): | 1.664499793 |
| Column Density (NH): e | 1.8632936933 |
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 | 15:50:10.52 |
| Dec: a | -02:19:03.0 |
| 90% Error Radius: b | 0.42 |
| Time to First Observation: c | 98 |
| V Magnitude: | V=16.11 |
| Other Filter Magnitudes: | B=16.28 U=15.13 UVW1=16.19 UVM2=17.31 UVW2=18.33 White=14.42 |
a J2000; b arcsec; c seconds
Other Burst Info:
Redshift:1.495 (NOT)Host Galaxy:
1.494 (VLT: absorption)
Other Observatory Detections:
SVOM/GRM, ECO1 (0.4m), Skynet/PROMPT, JinShan, NOT (2.5m), GROWTH-India (0.7m), KAIT (0.76m), VLT, Bassano Bresciano Observatory, REM (60cm), Liverpool (2m), Konus-Wind, ALMA @ 97.5 GHz, VLA @ 15 GHz, Belesta Observatory (820mm), Vidauban (300mm), Madagascar (350mm). Nastro Verde Observatory
Comments:
UVOT: no detection
References:
BAT: GCN 37110; GCN 37154
XRT: GCN 37110; GCN 37115; GCN 37121; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 37110; GCN 37123
Radio: GCN 37157 (ALMA); GCN 37158 (VLA); GCN 37167 (VLA)
Redshift: GCN 37122 (NOT); GCN 37129 (VLT)
Host:
Other: