Volume 395 - 37th International Cosmic Ray Conference (ICRC2021) - CRI - Cosmic Ray Indirect
Expected performance of the K-EUSO space-based observatory
F. Fenu*, S. Sharakin, M. Zotov, N. Sakaki, Y. Takizawa, M. Bianciotto, M.E. Bertaina, M. Casolino and P. Klimov
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Pre-published on: July 30, 2021
Published on:
Abstract
K-EUSO is a planned mission of the JEM-EUSO program for the
study of ultra-high energy cosmic rays (UHECR) from space, to be deployed on the International Space Station. The K-EUSO observatory consists of a UV telescope with a wide field of view, which aims at the detection of fluorescence light emitted by extensive air showers (EAS)
in the atmosphere. The EAS events will be sampled with a time resolution of 1--2.5 $\mu$s to reconstruct the entire shower profile with high precision. The detector consisting of $\sim 10^{5}$ independent pixels will allow a spatial resolution of $\sim$700 m on ground. From a 400 km altitude, K-EUSO will achieve a large and full sky exposure to sample the highest energy range of the UHECR spectrum. In this
contribution, we present estimates of the performance of the
observatory: an estimation of the expected exposure and triggered event rate as a function of energy and the event reconstruction performance, including resolution of arrival directions and energy of UHECRs.
DOI: https://doi.org/10.22323/1.395.0409
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