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) |
|---|---|---|---|---|
| -0.272 | 1.328 | 1.600 | 1.200-0.016+0.016 | 0.620-0.016+0.016 |
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 | 12.50-0.14+0.14 | 1.13-0.05+0.05 | -0.10-0.13+0.14 | 35.08-0.74+0.69 | ... | 49.90/32 | |||
| 2BB | 1 - 5 | 12.50-0.14+0.14 | 1.12-0.05+0.05 | ... | 6.54-0.66+0.61 | 6.25-0.63+1.10 | 12.85-0.65+0.82 | 1.73-0.19+0.19 | 56.07/31 | |