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) |
|---|---|---|---|---|
| -0.072 | 0.122 | 0.194 | 0.132-0.004+0.004 | 0.070-0.004+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 - 2 | 2.55-0.06+0.06 | 2.09-0.10+0.10 | 0.11-0.34+0.36 | 35.99-1.75+1.51 | ... | 19.34/18 | |||
| 2BB | 1 - 2 | 2.58-0.06+0.06 | 2.11-0.10+0.10 | ... | 8.77-0.61+0.48 | 15.01-1.13+1.59 | 18.30-2.77+3.38 | 1.66-0.52+1.37 | 15.36/17 | |