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) |
|---|---|---|---|---|
| -0.104 | 0.288 | 0.392 | 0.268-0.004+0.004 | 0.140-0.004+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 | 5.38-0.09+0.09 | 2.26-0.09+0.09 | 0.44-0.19+0.20 | 42.34-0.95+0.90 | ... | 31.82/21 | |||
| 2BB | 1 - 4 | 5.37-0.09+0.09 | 2.26-0.09+0.09 | ... | 5.62-1.13+1.29 | 22.16-5.38+17.27 | 12.81-0.43+0.58 | 7.22-1.97+2.45 | 30.94/20 | |