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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Simulations of cosmic rays in large-scale structures: numerical and physical effects
TL;DR: In this paper, a suite of unigrid cosmological simulations (up to $2048^3$) using a two-fluid model in the grid code ENZO is presented.
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Nonthermal Radio Emission from Hot Star Winds: Its Origin and Physical Implications
Wan Chen,Richard L. White +1 more
TL;DR: In this article, the authors discuss the logical path toward a comprehensive model of the nonthermal radio emission from hot star winds, and show that the only physically viable and self-consistent scenario is: the radio emission is synchrotron radiation of relativistic electrons, the electrons are accelerated by shocks via the first-order Fermi mechanism (left right harpoon), the acceleration has to be in situ in the radio emitting region, and shocks formed at the base of the winds have to propagate to beyond the radio photosphere.
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Non-Linear Amplification of a Magnetic Field Driven by Cosmic Ray Streaming
S. G. Lucek,A. R. Bell +1 more
TL;DR: One dimensional numerical results of the non-linear interaction between cosmic rays and a magnetic field are presented in this article, where it is shown that cosmic ray streaming drives large amplitude Alfvenic waves.
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Nonthermal Emission from the Arches Cluster (G0.121+0.017) and the Origin of $\gamma$-ray Emission from 3EG J1746-2851
TL;DR: In this article, high-resolution VLA observations of the Arches cluster near the Galactic center show evidence of continuum emission at 3.6, 6, 20 and 90 cm, where thermal sources become optically thick at longer wavelengths and fall off in brightness whereas non-thermal sources increase in brightness.
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On particle acceleration around shocks II: a fully general method for arbitrary shock velocities and scattering media
Pasquale Blasi,Mario Vietri +1 more
TL;DR: In this paper, an explicit equation for the probability that a particle, crossing the shock along a given direction, be reflected backwards along another direction is given, for both the upstream and downstream sections.