The acceleration of cosmic rays in shock fronts – I
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This article is published in Monthly Notices of the Royal Astronomical Society.The article was published on 1978-02-01 and is currently open access. It has received 2613 citations till now. The article focuses on the topics: Shock waves in astrophysics & Fermi acceleration.read more
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Importance of axion-like particles for very-high-energy astrophysics
TL;DR: In this paper, the authors performed a systematic analysis of the effect of very high-energy photons from blazars on the effective mean free path of beam photons, enhancing the photon survival probability.
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Particle acceleration and transport at an oblique CME-driven shock
TL;DR: In this paper, the authors studied particle acceleration at an oblique shock by extending their earlier particle acceleration and transport in heliosphere (PATH) code to include shocks with arbitrary BN, where BN is the angle between the upstream magnetic field and the shock normal.
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Composition and spectral properties of the 1 au quiet-time suprathermal ion population during solar cycle 23
TL;DR: In this article, the spectral and compositional properties of suprathermal heavy ions during quiet times from 1995 January 1 to 2007 December 31 were surveyed using wind/Energetic Particles: Anisotropy, Composition, and Transport/SupraThermal-through-Energy Particle Telescope and Advanced Composition Explorer/Ultra-low Energy Isotope Spectrometer at energies between 0.04 and 2.56 MeV nucleon-1.
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GeV-TeV cosmic-ray spectral anomaly as due to reacceleration by weak shocks in the Galaxy⋆
TL;DR: In this paper, the authors proposed that the spectral anomaly might be an effect of reacceleration of cosmic rays by weak shocks in the Galaxy, and they showed that the re-accelerated component can dominate the GeV energy region while the non-reaccelerator dominates at higher energies, thereby explaining the observed GeV-TeV spectral anomaly.
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Simulations of Ion Acceleration at Non-relativistic Shocks. III. Particle Diffusion
TL;DR: In this article, the authors used large hybrid (kinetic protons-fluid electrons) simulations to investigate the transport of energetic particles in self-consistent electromagnetic configurations of collisionless shocks.