The acceleration of cosmic rays in shock fronts – I
Reads0
Chats0
About:
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
Citations
More filters
Journal ArticleDOI
Modelling of proton acceleration in application to a ground level enhancement
Alexandr Afanasiev,Rami Vainio,Alexis P. Rouillard,Alexis P. Rouillard,Markus Battarbee,Markus Battarbee,Angels Aran,Pietro Zucca +7 more
TL;DR: In this paper, the authors used the results of the recently developed technique to determine the shock and ambient plasma parameters, applied to the 17 May 2012 GLE event, and carry out proton acceleration simulations with the CSA model.
Journal ArticleDOI
Particle acceleration at quasi-parallel shock waves: theory and observations at 1 au
L. Neergaard Parker,Gary P. Zank +1 more
TL;DR: In this article, the authors describe a theoretical model for accelerating an arbitrary upstream particle distribution using the diffusive shock acceleration (DSA) mechanism, also known as first-order Fermi acceleration.
Journal ArticleDOI
Cosmic-ray energy spectrum and composition up to the ankle - the case for a second Galactic component
Satyendra Thoudam,Satyendra Thoudam,Jörg P. Rachen,A. van Vliet,Abraham Achterberg,Stijn Buitink,Heino Falcke,Heino Falcke,Jörg R. Hörandel +8 more
TL;DR: In this article, a detailed study was carried out to understand the observed energy spectrum and composition of cosmic rays with energies up to 10^18 eV, and it was shown that a single Galactic component with subsequent energy cut-offs in the individual spectra of different elements, optimised to explain the observed spectra below ~10^14 eV and the knee in the all-particle spectrum, cannot explain the observations above 2x10^16 eV.
Journal ArticleDOI
Self-consistent Monte Carlo simulations of proton acceleration in coronal shocks: Effect of anisotropic pitch-angle scattering of particles
TL;DR: In this paper, a new Monte Carlo simulation code was proposed for accelerating protons in parallel coronal shocks, based on the quasi-linear theory of diffusive shock acceleration (DSA), where the particle and wave distributions in the foreshock as well as their time evolution are significantly different from the previous results and from the steady-state theory.
Journal ArticleDOI
Ion dynamics at a rippled quasi-parallel shock: 2d hybrid simulations
TL;DR: In this article, two-dimensional hybrid simulations are performed to investigate ion dynamics at a rippled quasi-parallel shock, and the results show that the ripples around the shock front are inherent structures of a quasparallel wave.