Timing analysis of SGR 1627-41. Liang, Jau-Shian Dep. of Physics, NTHU 2004/3/11. Outline. Introduction (1).SGR 1627-41 (2).epoch folding,H-test Data Reduction and Analysis Future work. introduction. 1. The first SGR was observed on March 5, 1979.
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Dep. of Physics, NTHU
The probability density of phases:
If Nj is large, S is approximately distributed as xn-12 for a flat probability density.
If the phase probability density is flat, the displacements are a two-dimensional random walk.
The means of c and s depend on the Fourier transform sine and cosine amplitudes of f(q).
The Rayleigh power is P=R2/N
The random variabl 2P is therefore approximately distributed as x22.
A generalization of the Rayleigh test:
Include the effect of a zealous obser in the caculation of significance:
1. 57041000 HURLEY 1999-02-06
duration:187.6ks gis:78.4ks sis:72.7ks
1. 70821005 Jan van Paradijs 1999-08-08
2. 70566001 Jan van Paradijs 1998-08-06
3. 70566002 Jan van Paradijs 1998-09-16
Filter energy: 1-10kev (21-213)
Filter time : GTI_XY.fits
Filter energy: 2-10kev (43-215)
70566001 887k tries T=85634
70566002 651k tries T=62376
70821005 1662k tries T=163642