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) |
|---|---|---|---|---|
| -0.066 | 0.286 | 0.352 | 0.286-0.008+0.008 | 0.144-0.004+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 | 4.57-0.08+0.08 | 1.99-0.09+0.09 | 0.18-0.24+0.25 | 32.94-1.30+1.18 | ... | 25.56/19 | |||
| 2BB | 1 - 4 | 4.57-0.08+0.08 | 1.99-0.09+0.09 | ... | 3.75-0.86+0.92 | 60.42-20.02+125.92 | 10.45-0.31+0.38 | 9.90-3.85+7.80 | 20.57/18 | |