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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Journal ArticleDOI
Diffusive shock acceleration in test-particle regime
Hyesung Kang,Dongsu Ryu +1 more
TL;DR: In this article, the authors examined the test-particle solution for diffusive shock acceleration, based on simple models for thermal leakage injection and Alfvenic drift, and proposed an analytic form of the exponential cutoff.
Journal ArticleDOI
Asymptotic particle spectra and plasma flows at strong shocks
TL;DR: In this paper, a nonlinear self-similar solution was proposed in which the accelerated particles change the flow structure near the shock so strongly that the total shock compression r may become very high Despite this, the energy spectrum remains close to E-3/2 independent of r.
Journal ArticleDOI
Cosmic ray models
M. Kachelrieß,Dmitri Semikoz +1 more
TL;DR: In this paper, the authors review progress in high-energy cosmic ray physics focusing on recent experimental results and models developed for their interpretation and discuss models aiming to explain the anomalies in Galactic cosmic rays, the knee and the transition from Galactic to extragalactic cosmic rays.
Book ChapterDOI
On Particle Acceleration in Supernova Remnants
TL;DR: In this article, the applicability of first and second order Fermi acceleration to electrons in supernova remnants is briefly examined, and the authors show that Fermian acceleration can be used to accelerate supernova electrons.
Journal ArticleDOI
Impact of cosmic rays on Population III star formation
Athena Stacy,Volker Bromm +1 more
TL;DR: In this paper, the authors explore the implications of a possible cosmic-ray background generated during the first supernova explosions that end the brief lives of massive Population III stars, and show that such a background could have significantly influenced the cooling and collapse of primordial gas clouds in minihaloes around redshifts of z ∼15-20, provided the CR flux was sufficient to yield an ionization rate greater than about 10- 19 s -1 near the centre of the minihalo.