GRB 070521
Time: 06:51:11
Trigger Number: 279935
Burst Advocate: Cristiano Guidorzi
BAT Data:
| RA: a | 242.659 16:10:38.2 |
| Dec: a | 30.260 30:15:36.0 |
| 90% Error Radius: b | 1.1 |
| T90: c | 37.900 |
| Fluence: d | 80.10 (1.77) |
| 1s Peak Photon Flux: e | 6.53 (0.27) |
| Photon Index: f | 1.1, CPL (-0.2/0.2) |
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 | 16:10:38.62 |
| Dec: a | 30:15:22.4 |
| 90% Error Radius: b | 1.4 |
| Time to First Observation: c | 76.89 |
| Early Flux: d | n/a |
| 11 Hour Flux: d | 0.11065548 |
| 24 Hour Flux: d | 0.018329688 |
| Initial Temporal Index: | -0.1294 |
| Spectral Index (Gamma): | 2.00022 |
| Column Density (NH): e | 18.8473 |
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 | 81 |
| V Magnitude: | V>20.4 |
| Other Filter Magnitudes: | B>22.0 U>21.7 UVW1>21.1 UVM2>20.8 UVW2>21.1 White>20.6 |
a J2000; b arcsec; c seconds
Other Burst Info:
Redshift:0.553 (Subaru: emission)Host Galaxy:
possible host:Other Observatory Detections:
z'~23.5 (Subaru)
i'~24.1, Ks~22.3 (Gemini North)
3 candidates (Keck I)
Subaru, Gemini North, Keck I, Konus-Wind
Comments:
UVOT: no detection
References:
BAT: GCN 6431; GCN 6440; arXiv:0707.4626
XRT: GCN 6431; GCN 6452; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 6431; GCN 6454
Radio:
Redshift: GCN 6444
Host: GCN 6444 (Subaru); GCN 6450 (Gemini North); GCN 6451 (Keck I)
Other: GCN Report 60.1
GCN Report 60.2