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Contents
List of Figures
List of Tables
Preface
Overview
Thesis organisation
Introduction: basic concepts
Overview
Accretion Driven X-ray sources
Basics of accretion
Neutron Star X-ray binaries
Magnetic Cataclysmic Variables
Old Isolated NSs accreting from Interstellar Medium
Isolated degenerate stars: not accreting WD and NS
Isolated Rotation-Powered NSs: Radio Pulsars
Isolated WDs
ROSAT
Overview
The ROSAT mission
The PSPC detectors
The HRI detector
Strategies for periodic signal search
Overview
Introduction to the tools for the search of astronomical signals
Timing techniques
``Colored'' noise power spectra
Unevenly spaced data
ROSAT specific problems
Systematic ROSAT PSPC light curve analysis
A pilot study: ROSAT HRI light curves of bright X-Ray sources in M31
Why M31 ?
1990 HRI Observation
Search Strategy
Results
Further M31 ROSAT observations
1991-1992 PSPC observation
1994 HRI observation
Follow-up ROSAT HRI observation
Searching for periodicities in the WGA catalogue PSPC light curves
Overview
The WGA Catalogue
Selection of the sample and X-ray properties
Results and overall properties
Pulsating source catalogue
Especially interesting cases
Overview
HD49798 (1WGA J0648.0-4418)
ROSAT PSPC observation
Other X-ray observations
Data interpretation
Follow-up
2E0050.1-7247 (1WGA J0051.8-7231)
ROSAT PSPC observations
EXOSAT CMA
Einstein IPC
Discussion
Follow-up
PG1159-035 (1WGA 1201.7-0345)
ROSAT PSPC observations
Other interesting cases: preliminary results
Results of periodicity search in the EXOSAT ME light curves
Overview
The discovery of 8.7s pulsations from 4U0142+614
Timing analysis
About the nature of the 4U0142+614
Follow-up studies
A new class of X-ray pulsators ?
Observational characteristics of the Very Low Mass X-ray Binary Pulsars
Overall properties
Models
Follow-up
Search for orbital modulations in a sample of LMXBs
Data Analysis and Results
A reanalysis of the NGC5548 EXOSAT ME light curves
EXOSAT ME Light Curves
Search for QPOs
Conclusions
Conclusions
Bibliography
References
Acknowledgements
Acknowledgements
About this document ...
Gianluca Israel
Fri Feb 21 17:29:03 WET 1997