GRB 250424A
Time: 06:52:28.51
Trigger Number: 1306404
Burst Advocate: Brad Cenko
BAT Data:
| RA: a | 217.528 14:30:06.7 |
| Dec: a | -35.025 -35:01:30.0 |
| 90% Error Radius: b | 1.0 |
| T90: c | 19.03 |
| Fluence: d | 320 (10) |
| 1s Peak Photon Flux: e | 47.0 (1.3) |
| Photon Index: f | 1.54, CPL (0.13) |
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 | 14:29:59.84 |
| Dec: a | -35:01:30.1 |
| 90% Error Radius: b | 1.9 |
| Time to First Observation: c | 250.88 |
| Early Flux: d | n/a |
| 11 Hour Flux: d | 1.2358251 |
| 24 Hour Flux: d | 0.53467776 |
| Initial Temporal Index: | -0.3241 |
| Spectral Index (Gamma): | 2.065773523 |
| Column Density (NH): e | 10.506113543 |
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 | 14:29:60.00 |
| Dec: a | -35:01:30.6 |
| 90% Error Radius: b | 0.47 |
| Time to First Observation: c | 254 |
| V Magnitude: | V>18.7 |
| Other Filter Magnitudes: | B=19.97 U=19.15 UVW1=19.44 UVM2>18.4 UVW2>19.9 White=18.96 |
a J2000; b arcsec; c seconds
Other Burst Info:
Redshift:0.310 (VLT: absorption, emission from likely host)Host Galaxy:
Likely host: A catalogued Legacy Surveys DR10 (LS DR10) galaxy (g=22.60, r=21.98, i=22.05, and z=21.70)Other Observatory Detections:
MASTER-OAFA, REM (60cm), DDOTI, VLT, BlackGEM, COLIBRÍ, AstroSat (CZTI), Kilonova-Catcher, Konus-Wind, SVOM/VT, EIRSAT-1 (GMOD), Palomar (1m), PRIME, SVOM/GRM, LCO (1m), CALET (GBM)
Comments:
References:
BAT: GCN 40224; GCN 40255
XRT: GCN 40224; GCN 40232; GCN 40233; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 40224; GCN 40244
Radio:
Redshift: GCN 40228 (VLT)
Host: GCN 40227
Other: