PoS - Proceedings of Science
Volume 395 - 37th International Cosmic Ray Conference (ICRC2021) - GAI - Gamma Ray Indirect
The search for high altitude sites in South America for the SWGO detector
M. Doro*, A. Moraes, M. Santander, M. Giammarchi, D. Mandat, L.M. Mendes, J. Bellido, C. Dib, S. May, A. Reisenegger, A.C. Rovero, A. Sandoval, F. Schüssler, R.W. Springer, I. Torres, J. Vícha  on behalf of the SWGO collaboration
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Pre-published on: July 30, 2021
Published on: March 18, 2022
Abstract
The Southern Wide-field Gamma-ray Observatory (SWGO) is a project for a new generation of extensive air shower front detectors, based primarily on the water Cherenkov technique, to be located in the Southern Hemisphere, where no other instrument of that kind is currently operating in the TeV gamma-ray energy range. The reference configuration of SWGO foresees an array of about 6,000 water Cherenkov tanks deployed over a circle of 320 m diameter, about 80,000 m$^2$ area. In order to reach a sensitivity at energies around and below 1 TeV competitive with current and future detectors, SWGO will be placed at altitude above 4,400 m a.s.l. Preliminary site searches have found several candidate sites in Argentina, Bolivia, Chile and Peru. The major challenge will be the water provision, considering that at least 10$^5$ m$^3$ of water will be required. This poster will present the challenges and status of the SWGO site search in South America.
DOI: https://doi.org/10.22323/1.395.0689
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