Science
Precise measurement of the energy spectrum of cosmic-ray helium nuclei – Tech Explorist
For the first time, DAMPE reveals a softening structure at about 34 TeV energies in the helium spectrum with a high significance (~4.3σ).
Cosmic rays (CRs) are energetic particles coming from outer space. They are primarily nuclei of various elements, with small amounts of electrons/positions, gamma-ray photons, and neutrinos. They are believed to be formed from extreme astrophysical objects, e.g., supernova remnant (SNR), accretion by the black hole, etc.
Hence, cosmic rays are one of the targets of scientists exploring astrophysical laws under extreme environments.
The formation, acceleration, and propagation of cosmic rays are…
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