TeV Gamma-Ray Astrophysics Theory and Observations Presented at the Heidelberg Workshop, October 3–7, 1994

The `International Heidelberg Workshop on TeV Gamma-Ray Astrophysics' brought together astrophysicists from the various fields which play a role in the formation of high energy gamma-ray emission. In particular, theoretical and observational aspects of the physics and astrophysics of pulsars and quasars, the acceleration of particles at Supernova Remnants and other strong astrophysical shock fronts, and cascade processes in universal background photon fields were comprehensively discussed in more than thirty reviews by leading experts.
In their entirety these reviews describe the birth of a new field of astronomy. This field concerns cosmic gamma-rays of very high energy which are observed with ground-based optical telescopes due to the Cherenkov emission of the secondary particles created by the interaction of these gamma-rays with atoms in the Earth's atmosphere. Beyond that, the workshop encompassed the latest developments and trends in theory and observation of cosmic gamma-ray sources of all energies, from nuclear gamma-ray lines in the MeV-region, through the Bremsstrahlung, Inverse Compton, and pion decay continuum emission, to gamma-rays due the decay of exotic relics from the early Universe.
Audience: Specialists as well as students in physics and astrophysics and young research workers.

The Atmospheric Cherenkov Technique in Very High Energy Gamma-Ray Astronomy.- Differences between Gamma-Ray and Hadronic Showers.- Present Status of Very High Energy Gamma Ray Observations.- Gamma-Ray Bursts and Very High Energy Gamma-Ray Astronomy.- Overview of TeV Gamma-Ray Observations.- The Atmospheric ?erenkov Technique in the Search for PBH.- Gamma-Hadron Separation at High Energies in View of Recent Cross Section Measurements.- Future Instrumental Capabilities in the Energy Range of Nuclear Transitions.- AGATE: A High Energy Gamma-Ray Telescope Using Drift Chambers.- GLAST.- Gamma-Ray Astronomy: Extension beyond the GeV Domain by Ground-Based Observations.- The Art and Power of ?erenkov Imaging.- Stereoscopic Measurements of the ?erenkov Radiation Produced by TeV Gamma-Rays.- Wide Angle Air ?erenkov Detectors.- Low Threshold Particle Arrays.- Water Cherenkov Detectors: MILAGRO.- High Energy Neutrino Telescopes.- Pulsars as Gamma Rays Sources: Nebular Shocks and Magnetosphere Gaps.- Inverse-Compton Gamma Rays From Plerions.- Shell Type Supernova Remnants.- The Nonthermal Energy Content and Gamma Ray Emission of Starburst Galaxies and Clusters of Galaxies.- Gamma-Rays from Active Galactic Nuclei: Emission Processes and Particle Acceleration.- The Hadronic Model of Active Galactic Nuclei.- TeV Gamma-Rays from Proton Blazars.- High Energy Neutrinos from Quasars.- Possible Episodic Gamma-Ray Sources: Moving Fragile Target Crosses Relativistic Particle Beam.- Topological Defects and Highest Energy Cosmic and Gamma Rays.- Intergalactic Magnetic Fields, and Some Connections with Cosmic Rays.- Absorption of High Energy Gamma-Rays by Low Energy Intergalactic Photons.- Probing the Era of Galaxy Formation via TeV Gamma Ray Absorption by the Near Infrared Extragalactic Background.- Recent Results from COMPTEL.- The Cosmic Microwave Background.