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) |
|---|---|---|---|---|
| -0.066 | 0.104 | 0.170 | 0.060-0.012+0.012 | 0.024-0.003+0.003 |
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 | 1.63-0.07+0.07 | 3.62-0.23+0.23 | -0.58-0.59+0.64 | 28.58-7.10+4.85 | ... | 14.00/16 | |||
| 2BB | 1 | 1.64-0.07+0.07 | 3.66-0.23+0.23 | ... | 3.43-1.14+1.72 | 117.88-52.90+432.26 | 11.08-0.68+0.94 | 9.16-4.32+28.00 | 12.56/15 | |