Computation of relativistic electron acceleration, transport and emissions in complex astrophysical flows

T. W. Jones, I. L. Tregillis, D. Ryu

Research output: Contribution to journalArticlepeer-review


Relativistic hadrons and leptons are ubiquitous constituents in astrophysical plasmas. Their presence reflects the breakdown of thermodynamic behaviors in collisionless plasmas, particularly at shocks. They can carry substantial energy, and their electromagnetic emissions often provide most of the information available about conditions in such environments. We have developed efficient and practical numerical approaches to computational simulations of the generation and transport of these so-called cosmic-rays. Here we report on a new method and its application for simulating relativistic electrons in supersonic MHD flows, particularly as it applies to radio galaxies. Additionally, we have developed tools that enable us to synthesize astronomical observations of our simulated objects that can be used to study them in ways identical to those of observational astronomers, thus enabling more meaningful comparisons of dynamical simulations with observations than has been possible before.

Original languageEnglish (US)
Article number103
Pages (from-to)476-479
Number of pages4
JournalComputer Physics Communications
Issue number1-2
StatePublished - 2002

Bibliographical note

Funding Information:
This work has been supported at the University of Minnesota by the US National Science Foundation, NASA and the University of Minnesota Supercomputing Institute. The work at Chungnam National University was supported by the Korean Research Foundation.


  • Cosmic-rays
  • MHD
  • Particle acceleration


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