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HAWC and Wide Angle Gamma-ray Surveys in the CTA Era

Abstract:

The High-Altitude Water Cherenkov (HAWC) observatory, now completing its third full year of operations, is conducting a wide-angle survey of TeV gamma rays and cosmic rays from two-thirds of the sky. With its discoveries of extended sources in the galactic plane, its high-statistics measurements of cosmic-ray backgrounds, and its continuous long-term monitoring of galactic and extragalactic objects, HAWC is carrying out a broad science program ranging from studies of galactic particle acceleration to searches for physics beyond the Standard Model. Data from HAWC are highly complementary to the sensitive pencil-beam surveys performed by imaging air Cherenkov detectors, and provide excellent opportunities for multi-wavelength and multi-messenger studies of steady and transient objects. I will present highlights from the first three years of HAWC measurements, and discuss the many synergies between …