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) |
|---|---|---|---|---|
| -0.046 | 0.176 | 0.222 | 0.164-0.004+0.004 | 0.092-0.004+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 - 3 | 2.98-0.07+0.07 | 2.21-0.10+0.10 | 0.22-0.22+0.23 | 36.93-1.21+1.12 | ... | 36.16/20 | |||
| 2BB | 1 - 3 | 2.95-0.07+0.07 | 2.19-0.10+0.10 | ... | 3.83-0.83+0.96 | 49.73-15.86+75.60 | 11.35-0.37+0.44 | 8.35-3.00+5.91 | 31.27/19 | |