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Direct Detection of Cosmic Rays with the Dark Matter Particle Explorer.

Authors :
Qiang, YUAN
Source :
Chinese Astronomy & Astrophysics. Jan2024, Vol. 48 Issue 1, p41-54. 14p.
Publication Year :
2024

Abstract

The origin, acceleration, and propagation of high-energy cosmic rays is one of the most important questions in modern physics and astronomy. To fully uncover such a mystery, precise measurements of the energy spectra and anisotropies of cosmic rays, as well as multi-wavelength electromagnetic radiation from various types of energetic objects are required. The direct measurements of energy spectra of different species via particle detectors in space are an essential way to study cosmic ray physics. China launched the first space astronomical satellite, the Dark Matter Particle Explorer (DAMPE) in the end of 2015, which keeps operation in space for more than 7 years. The DAMPE has a relatively large acceptance and a high energy resolution, and has made important progresses in measuring the spectral structures of cosmic ray protons, helium nuclei, and boron-to-carbon and boron-to-oxygen ratios. These new measurements bring new insights in understanding the origin and propagation of cosmic rays. This paper reviews the instrumentation and operation of DAMPE, with an emphasis on its scientific results and physical implications in cosmic ray studies. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
02751062
Volume :
48
Issue :
1
Database :
Academic Search Index
Journal :
Chinese Astronomy & Astrophysics
Publication Type :
Academic Journal
Accession number :
176121369
Full Text :
https://doi.org/10.1016/j.chinastron.2024.03.009