Abstract
Results in TeV γ-ray astronomy of recent years (in particular from H.E.S.S.) point to a population of γ-ray sources at energies E>10TeV. This provides strong impetus for future studies in the multi-TeV energy range. This key energy range addresses the origin of PeV cosmic-rays (CRs) at around the knee energy, and also astrophysical questions associated with multi-TeV γ-ray production in an increasing variety of environments. Here, we outline the TenTen project—a proposed stereoscopic array of modest-sized (10–30m2) Cherenkov imaging telescopes optimised for the E∼10–100TeV range. TenTen telescopes are designed to operate with a wide field of view (8∘–10∘ diameter) and the full array is expected to achieve an effective area of ∼10km2 at energies above 10TeV. Here, we present a summary of the motivation for TenTen and its key performance parameters.
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