Maximum Particle Energies by Fermi Acceleration and the Origin of Cosmic Rays above the Knee

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dc.creatorDermer, Charles D.
dc.date2000-12-22
dc.date2001-07-11
dc.date.accessioned2026-07-07T01:57:10Z
dc.date.available2026-07-07T01:57:10Z
dc.descriptionWe derive the maximum accelerated particle energy from first-order and second-order Fermi acceleration at nonrelativistic and relativistic shocks for explosions taking place in a uniform surrounding medium. Second-order stochastic processes in relativistic flows are shown to be capable of accelerating cosmic rays to ultra-high energies. Cosmic rays above the knee of the cosmic ray spectrum can be accelerated by the second-order Fermi mechanism in relativistic flows, such as those occuring in gamma-ray bursts and unusual supernovae like SN 1998bw.
dc.description4 pages, to appear in Proc. 27th ICRC (Hamburg, Germany)
dc.identifierhttps://arxiv.org/abs/astro-ph/0012490
dc.identifierhttp://arxiv.org/abs/astro-ph/0012490
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/2279
dc.subjectAstrophysics
dc.titleMaximum Particle Energies by Fermi Acceleration and the Origin of Cosmic Rays above the Knee
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