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) |
|---|---|---|---|---|
| -0.064 | 0.216 | 0.280 | 0.206-0.004+0.004 | 0.110-0.004+0.004 |
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 | 4.79-0.09+0.09 | 2.90-0.11+0.11 | -0.36-0.18+0.19 | 41.06-1.43+1.30 | ... | 27.02/23 | |||
| 2BB | 1 - 4 | 4.81-0.09+0.09 | 2.91-0.11+0.11 | ... | 8.93-0.57+0.51 | 13.34-0.95+1.30 | 19.06-1.51+1.71 | 2.07-0.37+0.54 | 26.83/22 | |