Atmospheric monitoring by star signal analysis using a CMOS camera system for the Telescope Array Project
Year: 2025
Type: conference-paper
Abstract: The Telescope Array (TA) Observatory located in Utah, U.S.A., is dedicated to the study of ultra-high-energy cosmic rays (UHECRs). The project’s primary aim is to investigate the energy spectrum, origin, and composition of these cosmic rays. TA employs a hybrid detection method, using surface detectors (SDs) in combination with fluorescence detectors (FDs). The observation of air showers by FDs provides more direct estimation of the energy of the primary UHECRs, which is used to calibrate the energy estimated by SDs. Atmospheric conditions play an important role in reconstructing the shower parameters. Presently, data acquired by the FDs under cloudy skies is eliminated from the scientific analysis based on the regular visual observations logged by operators in the field. In this work, we aim to additionally assess these atmospheric conditions by monitoring a part of the FD field of view with a wide-angle, high-sensitivity CMOS camera. The analysis results may be compared with the FD data to characterize the variation of the background caused by stars. In this paper, we present this CMOS camera setup and first results toward application to the UHECR observations.
DOI: 10.22323/1.501.0364
Authors: Marika Przybylak, "Dorota Sobczyńska", "Kenji Shinozaki", "Michal Vrábel", "Yoshiki Tsunesada"
Institution: University of Łódź
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
Funders: National Science Foundation, University of Utah, European Commission, National Research Foundation, Academia Sinica, National Research Foundation of Korea, University of Tokyo, Uniwersytet Łódzki, Forskningsrådet om Hälsa, Arbetsliv och Välfärd, Ministry of Science and Higher Education of the Russian Federation, U.S. Air Force, U.S. Bureau of Land Management, Japan Society for the Promotion of Science, RIKEN, Institute for Cosmic Ray Research, University of Tokyo
Awards: G1192106470, Analysis of Data from the Telescope Array Observatory, Study of the ultra high energy cosmic ray source evolution by detailed measurement of cosmic rays in the wide energy range, Analysis of Data from the Telescope Array Observatory, G2464845396, Quest for the unified picture of the explosion mechanism of supernovae and the central engine of gamma-ray bursts, G2908002831, Investigating the Correlation Between Lightning and High-Energy Particles in the Earth's Atmosphere, G5260365489, G5281852683, Downward Gamma Ray Showers from Natural Lightning, G5629441754, Operation of the Telescope Array Observatory, G6444257319, G6554715000, Exploring energy spectrum anisotropies in ultra-high energy cosmic rays with the Telescope Array, Operation of the Telescope Array Observatory, The Microphysics of Lightning: Observing the Optical Emission from Downward Terrestrial Gamma-ray Flashes, Extended Telescope Array Experiment - Nearby Extreme Universe Elucidated by Highest-energy Cosmic Rays, Baseline Support of the University of Utah Cosmic Ray Physics Group Including Analysis of Telescope Array, TALE, and TAx4 Data, Operation of the Telescope Array, TALE, and the TAx4 Expansion by the University of Utah, Extreme Phenomena in the Universe Explored by Highest Energy Cosmic Rays, Study of origins and propagation of very high energy cosmic rays with detailed measurements in the wide energy range
OpenAlex ID: W4415360656
FWCI:
Cites:
Cited by:
Related to: