Source properties
Name: SGR 1935+2154
Coordinates[J2000]: (293.7320, 21.8967)
Proposed associations: SNR G57.2+0.8
Distance: 9.5 kpc
P, Ṗ: ∼ 3.25 s, ∼ 1.43 × 10-11 s s-1
Bsurf: ∼ 2.2 × 1014 G
Characteristic age: ∼ 3.6 kyr
Temporal analysis
| Ti (s) | Tf (s) | T100 (s) | T90 (s) | T50 (s) |
|---|---|---|---|---|
| -0.140 | 0.576 | 0.716 | 0.542-0.008+0.008 | 0.280-0.005+0.005 |
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 - 5 | 7.62-0.12+0.12 | 1.52-0.07+0.07 | 0.40-0.23+0.23 | 36.77-0.92+0.85 | ... | 39.99/32 | |||
| 2BB | 1 - 5 | 7.60-0.13+0.13 | 1.52-0.07+0.07 | ... | 6.26-1.73+1.72 | 4.41-0.80+4.29 | 11.69-0.81+1.89 | 1.74-0.45+0.38 | 41.04/31 | |