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The Multiwavelength Approach to Unidentified Gamma-ray Sources (A Second Workshop on the Nature of the High-Energy UnidS)


Date:June 1-4, 2004
Venue:The University of Hong Kong

Nearly a half of the point-like gamma-ray sources detected by EGRET instrument of the late Compton satellite are still defeating our attempts at identifying them. To establish the origin and nature of these enigmatic sources has became a major problem of current high-energy astrophysics. At low galactic latitudes we know that some gamma-ray sources are pulsars, but the galactic population of gamma-ray emitters can also accomodate early-type stars, interacting supernova remnants, X-ray transients, galactic black holes and microquasars, and perhaps even a new kind of sources. At high latitudes, blazars and clusters of galaxies are the main candidates to explain some unidentified sources, but many important issues remain unsolved.

With the aim of shedding new and fresh light on the problem of the nature of the unidentified gamma-ray sources we are organizing a new workshop that continues with the series initiated by the meeting held at Tonantzintla in October 2000. We expect a highly focused workshop with a lot of discussion. Experts from different research fields, from radio to very high-energy gamma-ray astronomy, will be gathered for a 4-days intense meeting in the nice environment of the Hong Kong University. We shall outline whtat we know and what we can learn about the high-energy UnidS in the light of the forthcoming instruments like INTEGRAL, AGILE, GLAST, HESS, CANGAROO III, VERITAS, and others. Theoretical models on gamma-ray sources will be discussed along with the best multiwavelength strategies for the identification of the promising candidates.

The conference will be open to all scientists with interest in energetic phenomena ocurring both in galactic and extragalactic scenarios, phenomena that might lead to the appearance of we have called high-energy UnidS.