On the evolution of interacting, magnetized, galactic plasmas

  title={On the evolution of interacting, magnetized, galactic plasmas},
  author={A. Peratt and J. Green},
  journal={Astrophysics and Space Science},
The advent of three-dimensional, electromagnetic, and fully relativistic particle simulations allows a detailed study of a magnetized, rotating plasma, galaxy model. When two such models are simulated, an interaction yielding results resembling observational data from double radio sources, including the emission of synchrotron radiation, are obtained. Simulation derived morphologies, radiation intensities, frequency spectra, and isophote patterns are directly compared to observations. The… Expand
The evidence for electrical currents in cosmic plasma
With the advent of fully three-dimensional, fully electromagnetic, particle-in-cell simulations, investigations of Birkeland currents and magnetic-field-aligned electric fields have become possibleExpand
Thermalization of synchrotron radiation from field-aligned currents †
Three-dimensional plasma simulations of interacting galactic-dimensioned current filaments show bursts of synchroton radiation of energy density 1·2 ×10 −13 erg/cm 3 which can be compared with theExpand
Evolution of the Plasma Universe: I. Double Radio Galaxies, Quasars, and Extragalactic Jets
  • A. Peratt
  • Physics
  • IEEE Transactions on Plasma Science
  • 1986
Cosmic plasma physics and our concept of the universe is in a state of rapid revision. This change started with in-situ measurements of plasmas in Earth's ionosphere, cometary atmospheres, andExpand
Synchrotron radiation spectrum for galactic-sized plasma filaments
The radiation spectrum for synchrotron-emitting electrons in galactic-sized Birkeland current filaments is analyzed. It is shown that the number of filaments required to thermalize the emissionExpand
Magnetic self-compression in laboratory plasmas, quasars and radio galaxies. Part II
A model of quasars and their associated jets as phenomena of magnetic selfcompression is presented. Magnetic field self-compression, as observed in laboratory plasma focus devices, results inExpand
Hall Magnetohydrodynamics and Its Applications to Laboratory and Cosmic Plasma
  • E. Witalis
  • Physics
  • IEEE Transactions on Plasma Science
  • 1986
With early critical views by Lighthill [1] as the starting point, a revision is performed of the classical magnetohydrodynamic (MHD) theory for the magnetized plasma properties. The importance ofExpand
Similarites Between the Plasma Vortex Filaments (Relativistic and Nonrelativistic) Observed in the Plasma Focus and in Conventional Relativistic Electron-Beam Machines
In 1966, the Stevens Institute of Technology (SIT) plasma focus group demonstrated experimentally that the current sheath of the plasma focus is carried by pairs of plasma vortex filaments, whichExpand
Evolution of Anisotropy in Charged Fluids
A computer program has been written to simulate the conditions of the early universe and to test a new idea in the mechanism of structure formation observed in our universe today. The model utilisesExpand
Birkeland Currents in Cosmic Plasma
An electromotive force ϕ = ∫ v × B⋅ dl giving rise to electrical currents in conducting media is produced wherever a relative perpendicular motion of plasma and magnetic field lines exist (Sect.Expand
Physics Of The Plasma Universe
Contents: Cosmic Plasma Fundamentals.- Birkeland Currents in Cosmic Plasma.- Biot-Savart Law in Cosmic Plasma.- Electric Fields in Cosmic Plasma.- Double Layers in Astrophysics.- SynchrotronExpand


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