SGR burst detected by KW on 2004-08-14
at T0 = 45466.575 s UT (12:37:46.575)

Lightcurve
Lightcurve

Source properties

Name:  SGR 1806-20
Coordinates[J2000]: (272.1639, -20.4111)
Proposed associations: W31,  MC 13A,  massive star cluster
Distance:  8.7 kpc
P, Ṗ:   ∼ 7.55 s,  ∼ 49.5 × 10-11 s s-1
B surf:  ∼ 20.0 × 1014 G
Characteristic age:  ∼ 0.2 kyr

Temporal analysis

Ti (s) Tf (s) T100 (s) T90 (s) T50 (s)
-0.154 0.100 0.254 0.182-0.035+0.035 0.100-0.006+0.006

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)
2BB 1 1.27-0.19+0.20 1.46-0.27+0.27 ... 3.51-1.31+2.15 46.58-21.97+723.24 11.54-1.96+2.72 2.63-1.25+20.96 14.74/7