Numerical models of black hole accretion flows

Charles F. Gammie, Scott Noble, Po Kin Leung

Research output: Contribution to journalArticle

Abstract

Black hole accretion flows are the hot, magnetized, turbulent plasma that surround black holes in astrophysical settings and in some cases make them the most luminous objects in the universe. I review recent developments in the numerical modeling of these plasmas. For weakly radiating flows it is now possible to follow the dynamics of the plasma by integrating the equations of general relativistic magnetohydrodynamics using numerical methods borrowed from nonrelativistic hydrodynamics. Ray tracing, along the curved trajectories followed by light close to the black hole event horizon, can then be used to create simulated observations of these weakly radiating flows. These models are relevant to the faint source at the galactic center, which may soon be directly imaged by millimeter interferometry.

Original languageEnglish (US)
Pages (from-to)250-253
Number of pages4
JournalComputer Physics Communications
Volume177
Issue number1-2 SPEC. ISS.
DOIs
StatePublished - Jul 1 2007

Keywords

  • Black hole
  • General relativity
  • Magnetohydrodynamics

ASJC Scopus subject areas

  • Hardware and Architecture
  • Physics and Astronomy(all)

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