Capturing the excitement and accomplishments of X-ray astronomy, this second edition now includes a broader range of astronomical phenomena and dramatic new res

A review of the current observational knowledge and understanding of the cosmic X-ray background.

Quasars, and the menagerie of other galaxies with "unusual nuclei", now collectively known as Active Galactic Nuclei or AGN, have, in one form or another, spark

This open access book gives a complete and comprehensive introduction to the fields of medical imaging systems, as designed for a broad range of applications. T

X-ray astronomy is the prime available window on astrophysical compact objects: black holes, neutron stars and white dwarfs. In this book, prominent experts pro