SGR burst detected by KW on 2005-02-11
at T0 = 10238.762 s UT (02:50:38.762)

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)
-0.250 0.454 0.704 0.574-0.036+0.036 0.254-0.020+0.020

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 - 4 3.57-0.13+0.13 0.93-0.11+0.11 ... 2.93-0.51+0.58 142.14-51.62+268.84 10.48-0.53+0.59 5.46-2.06+5.90 21.00/18