Ponente
Descripción
The CALorimetric Electron Telescope (CALET) has been in operation on the International Space Station (ISS) since October 2015, providing nearly ten years of high-precision, continuous observations of cosmic rays. The CALET mission aims to search for signatures of nearby sources and dark matter through observations of high-energy cosmic-ray electrons, and to contribute to the study of cosmic-ray acceleration and propagation via precise measurements of nuclei from protons to heavy elements.
Over nearly a decade of observations, CALET has reported notable spectral features including a spectral break around 1 TeV in the all-electron spectrum, as well as spectral hardening and softening in the TeV region for protons, helium, and heavier nuclei. A preliminary all-particle spectrum extending to the PeV region has also been derived by combining a wide range of nuclei. Precise charge identification enables the measurement of energy spectra of individual elements, contributing to the study of cosmic-ray acceleration and propagation mechanisms. In addition, CALET provides data on the relative abundances of ultra-heavy galactic cosmic rays beyond Z=28. This presentation summarizes the latest CALET results based on nearly ten years of operation, including recent measurements of spectral features and on-orbit detector performance.
