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) |
|---|---|---|---|---|
| -0.086 | 0.056 | 0.142 | 0.100-0.018+0.018 | 0.042-0.006+0.006 |
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 | 0.85-0.11+0.11 | 1.19-0.20+0.20 | 1.31-1.96+2.48 | 46.04-10.51+6.07 | ... | 11.94/11 | |||
| 2BB | 1 | 0.86-0.10+0.13 | 1.21-0.18+0.23 | ... | 12.22-1.15+1.25 | 2.97-0.55+0.69 | 0.94-0.63+1.05 | 88343.78-44131.86+6847101.96 | 10.09/10 | |