7 papers · 1 filter
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…
Time dependent cosmic-ray shock acceleration with self-consistent injection
U. D. J. Gieseler, T. W. Jones, Hyesung Kang
One of the key questions to understanding the efficiency of diffusive shock acceleration of the cosmic rays (CRs) is the injection process from thermal particles. A self-consistent…
3-D MHD Numerical Simulations of Cloud-Wind Interactions
G. Gregori, Francesco Miniati, Dongsu Ryu +1
We present results from three-dimensional (3-D) numerical simulations investigating the magnetohydrodynamics of cloud-wind interactions. The initial cloud is spherical while the ma…
Acceleration of CR at Large Scale Shocks and Their Cosmological Role for Structure Formation in the Universe
Francesco Miniati, Dongsu Ryu, T. W. Jones +1
We investigate the dynamical importance of a newly recognized possible source of significant feedback generated during structure formation; namely cosmic ray (CR) pressure. We pres…