Back to the Abstract

	1 Introduction
	2 The XMM-Newton Bright Serendipitous Source sample
	3 Optical identification and classification
	4 X-ray data
	5 Optical versus X-ray absorption
	6 Comparison with the XRB synthesis models
	7 Type 2 QSO
	8 X-ray Bright optically normal galaxies (XBONG)
	9 Summary and conclusions
	References
	Online Material
	Appendix A: Notes on individual objects
	Appendix B: X-ray spectra

	List of tables
	List of figures