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) |
|---|---|---|---|---|
| -0.078 | 0.394 | 0.472 | 0.398-0.010+0.010 | 0.234-0.008+0.008 |
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 | 2.90-0.10+0.10 | 1.02-0.07+0.07 | 0.80-0.54+0.58 | 31.94-1.53+1.30 | ... | 27.27/34 | |||
| 2BB | 1 - 5 | 3.00-0.11+0.11 | 1.06-0.07+0.07 | ... | 8.15-0.35+0.33 | 2.53-0.18+0.27 | 25.06-11.77+15.62 | 0.08-0.03+1.05 | 26.01/33 | |