Nonlinear Time series analysis of the X-ray flux of compact objects
- 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.
Author details: | Marco Thiel, Maria Carmen RomanoORCiD, Udo Schwarz, Jürgen KurthsORCiDGND, Günther Hasinger, Tomaso Belloni |
---|---|
ISSN: | 0004-640x |
Publication type: | Article |
Language: | English |
Year of first publication: | 2001 |
Publication year: | 2001 |
Release date: | 2017/03/24 |
Source: | Astrophysics and space science. - ISSN: 0004-640x. - (Supplement 1). - 276 (2001), S. 187 - 188 |
Organizational units: | Zentrale und wissenschaftliche Einrichtungen / Interdisziplinäres Zentrum für Dynamik komplexer Systeme |