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Article Contents
- ABSTRACT
- 1.INTRODUCTION
- 2.DIFFUSE X-RAY EMISSION
- 3.DISCRETE X-RAY SOURCES
- 3.1.Population studies
- 3.2.The nature of individual sources
- 4.ULTRA-LUMINOUS SOURCES
- 4.1.X-ray observations
- 4.2.Three physical models for the
ULXs
- REFERENCES