Nonlinear Time-Series Analysis of the X-ray Flux of Compact Objects

被引：0
|
作者：
M. Thiel
M. Romano
U. Schwarz
J. Kurths
G. Hasinger
T. Belloni
机构：
[1] Universität Potsdam,Astronomical Institute `Anton Pannekoek'
[2] AIP Potsdam,undefined
[3] University of Amsterdam,undefined
来源：
Astrophysics and Space Science | 2001年 / 276卷
关键词：
Time Series; Power Density; Time Series Analysis; Light Curf; Density Spectrum;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
We analyse the X-ray light curves of compact objects using linear and nonlinear time series analysis methods. A Power Density Spectrum (PDS) describes the overall second order properties of the observed data well. To look beyond we propose the nonlinear Q-statistic to detect an asymmetry of the time series. This allows us to find relevant time scales. This method even grants a subclassification of the known states of X-ray sources.
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页码：187 / 188
页数：1
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