Notes: Brand New Item. Not shipped to AK, HI, APO, FPO, AE.
This volume consists of invited lectures and seminars presented at the NATO Advanced Study Institute The Gamma Ray Sky with COMPTON GRO and SIGMA , which was held at the Centre de Physique Theorique of Les Houches (France) in January / February 1994. The school has been planned by a Scientific Organizing Committee. It was organized with the aim of providing students and young researchers with an up-to-date account of the high-energy phenomena in the vicinity of compact objets and the diffuse gamma-ray backgrounds after the early results from the gamma-ray telescope SIGMA and the four instruments onboard COMPTON GRO (Gamma Ray Observatory) : BATSE (Burst and Transient Source Experiment),COMPTEL(Compto'l Telescope),EGRET (Energetic Gamma Ray Experiment Telescope) and OS SE(Oriented Scintillation Spectrometer Experiment) . It was attended by more than sixty researchers from many countries. The lectures and seminars represent a complete coverage of our present knowledge and understanding of: Gamma-ray backgrounds, Gamma-ray Burts,Active Galactic Nuclei,Galactic Compact Objects, Gamma-ray Spectroscopy, Instrumentation and observation techniques, etc ... Most of these lectures are reproduced in this volume. Unfortunately, a few lecturers have chosen not to submit their manuscript.I. Introductory Lecturers.- . The COMPTON Gamma Ray Observatory: Highlights from the First Three Years of the Mission.- . Overview of the SIGMA Results.- . TEV Gamma Ray Astronomy, Techniques.- II. Extragalactic Gamma-Ray Sources.- . High-Energy Radiation from Active Galactic Nuclei: Implications for AGN Unification Scenarios.- . Modelling the High Energy Spectra of AGN.- . Multi-wavelength Observations of Active Galactic Nuclei.- . OSSE Observations of Galactic Nuclei.- . EGRET Observations of Active Galactic Nuclei.- . TEV Gamma-Ray Astronomy, Extragalactic Sources.- III. Gamma - Ray Backgrounds.- . Diffuse Gamma Rays from WIMP Decay and Annihilation.- . The Diffuse ? Ray from Cosmic Ray Intel3,