Cosmic rays and their radiative processes in numerical cosmology

Dongsu Ryu, Francesco Miniati, Tom W. Jones, Hyesung Kang

Research output: Contribution to journalConference articlepeer-review


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 explicitly diffusive acceleration at shocks, and second-order Fermi acceleration and adiabatic loss in smooth ows. Synchrotron cooling of the electron population can also be followed. The updated code is intended to be used to study the properties of nonthermal synchrotron emission and inverse Compton scattering from electron cosmic rays in clusters of galaxies, in addition to the properties of thermal bremsstrahlung emission from hot gas. The results of a test simulation using a grid of 1283 cells are presented, where cosmic rays and magnetic field have been treated passively and synchrotron cooling of cosmic ray electrons has not been included.

Original languageEnglish (US)
Pages (from-to)305-307
Number of pages3
JournalRevista Mexicana de Astronomia y Astrofisica: Serie de Conferencias
StatePublished - Dec 1 2000
EventAstrophysical Plasmas: Codes, Models, and Observations - Mexico City, Mexico
Duration: Oct 25 1999Oct 29 1999


  • Cosmic rays
  • Cosmology: large-scale structure of the universe
  • Galaxies: clusters: general
  • Methods: numerical


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