8 papers
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…
Formation of Proto-Globular Cluster Clouds by Thermal Instability
Hyesung Kang, George Lake, Dongsu Ryu
Many models of globular cluster formation assume the presence of cold dense clouds in early universe. Here we re-examine the Fall & Rees (1985) model for formation of proto-globula…
Three-Dimensional Simulations of the Parker Instability in a Uniformly-rotating Disk
Jongsoo Kim, Dongsu Ryu, T. W. Jones
We investigate the nonlinear effects of uniform rotation on the Parker instability in an exponentially-stratified disk through high-resolution simulations. During the linear stage,…
Cosmic Rays and Their Radiative Processes in Numerical Cosmology
Dongsu Ryu, Francesco Miniati, Tom W. Jones +1
A cosmological hydrodynamic code is described, which includes a routine to compute cosmic ray acceleration and transport in a simplified way. The routine was designed to follow exp…