What process is responsible for accelerating charged particles to high energies within the remnant?

Answer

Shock wave acceleration (First Order Fermi Mechanism)

Cosmic rays are primarily produced via shock wave acceleration, known as the First Order Fermi Mechanism, where charged particles are repeatedly bounced across the shock front by magnetic fields, gaining energy with each crossing.

What process is responsible for accelerating charged particles to high energies within the remnant?
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