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Extremely fast acceleration of cosmic rays in a supernova remnant

Maeda, Yoshitomo; Takahashi, Tadayuki; Uchiyama, Yasunobu +2 more

Galactic cosmic rays (CRs) are widely believed to be accelerated by shock waves associated with the expansion of supernova ejecta into the interstellar medium. A key issue in this long-standing conjecture is a theoretical prediction that the interstellar magnetic field can be substantially amplified at the shock of a young supernova remnant (SNR) …