13 papers
Acceleration of ULtra High Energy Cosmic Rays: Cosmic Zevatrons?
T. W. Jones
In this lecture I outline some of the underlying physics issues associated with accelerators plausibly capable of explaining the UHECRs up to ZeV energies. I concentrate on the con…
Structure Shocks as a Source of Cosmic Rays in Clusters
T. W. Jones, Francesco Miniati, Dongsu Ryu +2
Shocks are a ubiquitous consequence of cosmic structure formation, and they play an essential role in heating galaxy cluster media. Virtually all of the gas in clusters has been pr…
Intrinsic energy cut-off in diffusive shock acceleration: possible reason for non-detection of TeV-protons in SNRs
M. A. Malkov, P. H. Diamond, T. W. Jones
The linear theory of shock acceleration predicts the maximum particle energy to be limited only by the acceleration time and the size of the shock. We study the combined effect of…
Cosmic Particle Acceleration: Basic Issues
T. W. Jones
Cosmic-rays are ubiquitous, but their origins are surprisingly difficult to understand. A review is presented of some of the basic issues common to cosmic particle accelerators and…
Nonthermal Emission in Radio Galaxies from Simulated Relativistic Electron Transport in 3D MHD Flows
I. L. Tregillis, T. W. Jones, Dongsu Ryu
We perform a series of so-called ``synthetic observations'' on a set of 3D MHD jet simulations which explicitly include energy-dependent transport of relativistic electrons, as des…
3D MHD Simulations of Radio Galaxies Including Nonthermal Electron Transport
T. W. Jones, I. L. Tregillis, Dongsu Ryu
We report on an effort to study the connections between dynamics in simulated radio galaxy plasma flows and the properties of nonthermal electron populations carried in those flows…