The Nature of Unidentified Galactic High-Energy Gamma-Ray Sources: Proceedings of the Workshop held at Tonantzintla, Puebla, Mexico, 9-11 October 2000 [Hardcover]

The Energetic Gamma-Ray Experiment Telescope (EGRET) instru? ment on the Compton Gamma-Ray Observatory left as a legacy its Third Catalog of High Energy Gamma-Ray Sources, whose detections include a large number of blazars, some pulsars, the Large Magellanic Cloud and a solar flare. Most of the newly discovered objects - a majority of the catalog -are unidentified sources, with a clearly predominant Galactic population. Are all these radio-quiet pulsars, like Geminga, or is there a novel type of celestial object, awaiting identification? In spite of the limited angular resolution provided by EGRET and COMPTEL, there is still much to learn about unidentified ,-ray sources: correlation studies, multiwavelength observations and theoretical work can provide valuable clues, specially if these efforts are carried out in a coordinated manner. The aim of this workshop, held from October 9 to 11, 2000, at the Instituto N acional de Astrofisica, Optica y Electronica, at Tonantzintla, Mexico, was to gather experts on the subject, including observational as? tronomers specialized in other regions of the electromagnetic spectrum, in an effort to address the question of the Nature of Galactic high-energy gamma-ray sources, both from the theoretical and observational perspec? tive, and elaborate schemes for future identification studies which can make use of existing and forthcoming facilities.I Unidentified Gamma-Ray Sources.- 1 Unidentified Gamma-Ray Sources: an Introduction.- 2 Gamma-Ray Properties of Unidentified EGRET Sources.- 3 Multiwavelength Searches and Spectral Aspects of 3EG Sources.- II Correlations Studies Of Unidentified Gamma-Ray Sources.- 4 Gamma-Ray Sources off the Galactic Plane.- 5 Low-Latitude Gamma-Ray Sources.- 6 Population Studies of Unidentified ?-Ray Sources.- 7 Population Studies of the EGRET Sources.- 8 Low-Latitude Gamma-Ray Sources and Supernova Remnants.- III High-energy Pulsars.- 9 Geminga Pulsars.- 10 X-Ray and Radio Observations of Bright GeV SourlS.