Source properties
Name: SGR 1806-20
Coordinates[J2000]: (272.1639, -20.4111)
Proposed associations: W31, MC 13A, massive star cluster
Distance: 8.7 kpc
P, Ṗ: ∼ 7.55 s, ∼ 49.5 × 10-11 s s-1
B surf: ∼ 20.0 × 1014 G
Characteristic age: ∼ 0.2 kyr
Temporal analysis
| Ti (s) | Tf (s) | T100 (s) | T90 (s) | T50 (s) |
|---|---|---|---|---|
| -0.510 | 7.952 | 8.462 | 6.282-0.170+0.170 | 2.688-0.051+0.051 |
Spectral analysis
| Model | Spectra | Fluence | Peak flux | α | Ep | kT1 | R1 | kT2 | R2 | χ2/dof |
|---|---|---|---|---|---|---|---|---|---|---|
| (10-6 erg/cm2) | (10-5 erg/cm2/s) | (keV) | (keV) | (km) | (keV) | (km) | ||||
| CPL | 1 - 4 | 51.00-1.77+1.78 | 1.37-0.13+0.13 | -1.17-0.46+0.51 | 18.11-7.95+5.51 | ... | 16.91/21 | |||
| 2BB | 1 - 5 | 49.60-0.39+0.39 | 1.33-0.11+0.11 | ... | 4.72-0.21+0.21 | 31.79-3.01+4.07 | 11.67-0.26+0.27 | 3.80-0.24+0.25 | 107.04/26 | |