GRB 151027A
Time: 03:58:24
Trigger Number: 661775
Burst Advocate: Alessandro Maselli
BAT Data:
| RA: a | 272.498 18:09:59.5 |
| Dec: a | 61.361 61:21:39.6 |
| 90% Error Radius: b | 1.1 |
| T90: c | 129.69 |
| Fluence: d | 78 (2) |
| 1s Peak Photon Flux: e | 6.8 (0.6) |
| Photon Index: f | 1.72, 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)
BAT Light Curve:
XRT Data:
| RA: a | 18:09:56.85 |
| Dec: a | 61:21:11.9 |
| 90% Error Radius: b | 1.4 |
| Time to First Observation: c | 87.00 |
| Early Flux: d | 708 |
| 11 Hour Flux: d | 0.74271162 |
| 24 Hour Flux: d | 0.186820095 |
| Initial Temporal Index: | -1.144 |
| Spectral Index (Gamma): | 2.00612 |
| Column Density (NH): e | 4.47471 |
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 | 18:09:57.26 |
| Dec: a | 61:21:05.4 |
| 90% Error Radius: b | n/a |
| Time to First Observation: c | 96 |
| V Magnitude: | V=15.12 |
| Other Filter Magnitudes: | B=15.37 U=14.00 UVW1=14.71 UVM2=14.98 UVW2=15.12 White=14.44 |
a J2000; b arcsec; c seconds
Other Burst Info:
Redshift:0.38 (XRT: tentative)Host Galaxy:
0.81 (Keck: absorption)
0.81 (GMG: absorption)
Other Observatory Detections:
KAIT (0.76m), ISON-NM (0.4m), Palomar (60"), Weihai (1m), MITSuME (50cm), Fermi (GBM), GMG (2.4m), RAPTOR, THO (16"), VLA @ 21.8 GHz, LCOGT-McDonald (1m), Xinglong (0.8m), Konus-Wind, TUBITAK T100 (1m), NOT, Zeiss-1000 (1m), MAXI, Nikolaev (0.5m), Wiggins (0.35m), Mt. Terskol (Zeiss-600), Sayan (AZT-33IK), Hankasalmi (0.4m), GMRT @ 1390 MHz and 610 MHz, Himalayan Chandra Telescope (2m), Maidanak (AZT-22)
Comments:
References:
BAT: GCN 18478; GCN 18496
XRT: GCN 18478; GCN 18482; GCN 18483; GCN 18490; Evans et al., 2009, MNRAS, 397, 1177
UVOT: GCN 18478; GCN 18502
Radio: GCN 18508 (VLA); GCN 18608 (GMRT); GCN 18620 (GMRT)
Redshift: GCN 18483 (XRT); GCN 18487 (Keck); GCN 18493 (GMG)
Host:
Other: