GRB 240912A
Time: 01:46:39
Trigger Number: 1253910
Burst Advocate: Phil Evans
BAT Data:
| RA: a | 124.625 08:18:30.0 |
| Dec: a | 33.999 33:59:56.4 |
| 90% Error Radius: b | 1.0 |
| T90: c | 113.24 |
| Fluence: d | 450 (0) |
| 1s Peak Photon Flux: e | 15.8 (0.5) |
| Photon Index: f | 1.43, CPL (0.11) |
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 | 08:18:32.28 |
| Dec: a | 33:59:56.9 |
| 90% Error Radius: b | 2 |
| Time to First Observation: c | 106.02 |
| Early Flux: d | 8640 |
| 11 Hour Flux: d | 0.00041570594 |
| 24 Hour Flux: d | 0.000040809606 |
| Initial Temporal Index: | -4.289 |
| Spectral Index (Gamma): | 1.855251302 |
| Column Density (NH): e | 0.9345608244 |
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 | 08:18:32.40 |
| Dec: a | 33:59:56.3 |
| 90% Error Radius: b | 0.43 |
| Time to First Observation: c | 115 |
| V Magnitude: | V=17.78 |
| Other Filter Magnitudes: | B=19.08 U=18.14 UVW1=17.76 UVM2>17.18 UVW2=18.47 White=17.87 |
a J2000; b arcsec; c seconds
Other Burst Info:
Redshift:1.234 (GTC: absorption)Host Galaxy:
1.23 (NOT: absorption)
g = 23.08, r = 22.88, and z = 22.01 (LCOGT/Legacy Surveys: likely host)Other Observatory Detections:
Fermi (GBM), GTC (10.4m), NOT (2.56m), INTEGRAL, LCOGT (1m), SVOM/GRM, Konus-Wind
Comments:
References:
BAT: GCN 37466; GCN 37539
XRT: GCN 37466; GCN 37470; GCN 37479; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 37466; GCN 37487
Radio:
Redshift: GCN 37469 (GTC); GCN 37471 (NOT)
Host: GCN 37476 (LCOGT)
Other: