Concepedia

A cut-off in the TeV gamma-ray spectrum of the SNR Cassiopeia A

M. L. Ahnen, Stefano Ansoldi, L. A. Antonelli, Cornelia Arcaro, A. Babić, B. Banerjee, P. Bangale, U. Barres de Almeida, J. A. Barrio, J. Becerra González,

Monthly Notices of the Royal Astronomical Society · 2017 · 96 citations · 48 references

DOIFull text

Open access

Abstract

It is widely believed that the bulk of the Galactic cosmic rays is accelerated in supernova remnants (SNRs). However, no observational evidence of the presence of particles of PeV energies in SNRs has yet been found. The young historical SNR Cassiopeia A (Cas A) appears as one of the best candidates to study acceleration processes.

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