SGR burst detected by KW on 2007-09-14
at T0 = 53687.068 s UT (14:54:47.068)

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)
-0.126 2.384 2.510 1.928-0.057+0.057 1.014-0.033+0.033

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 17.40-0.45+0.46 1.94-0.14+0.15 -1.16-0.34+0.35 19.32-5.68+4.38 ... 27.17/20
2BB 1 - 5 16.50-0.30+0.30 1.84-0.13+0.13 ... 3.63-0.29+0.31 35.81-7.20+13.07 11.30-0.30+0.33 2.49-0.45+0.65 38.12/25