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) |
|---|---|---|---|---|
| -0.182 | 6.992 | 7.174 | 5.958-0.064+0.064 | 2.832-0.051+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 | 56.20-1.31+1.31 | 2.43-0.16+0.16 | -1.31-0.26+0.28 | 16.56-4.86+3.99 | ... | 18.81/22 | |||
| 2BB | 1 - 5 | 55.30-0.41+0.41 | 2.39-0.15+0.15 | ... | 3.91-0.15+0.16 | 57.54-5.71+7.59 | 10.38-0.15+0.16 | 5.69-0.45+0.50 | 80.43/26 | |