Computer Science
Scientific paper
Aug 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988lpb.....6..493p&link_type=abstract
Laser and Particle Beams (ISSN 0263-0346), vol. 6, Aug. 1988, p. 493-501.
Computer Science
3
Background Radiation, Field Aligned Currents, Synchrotron Radiation, Absorptivity, Black Body Radiation, Filaments, Flux Density, Thermalization (Energy Absorption)
Scientific paper
Three-dimensional plasma simulations of interacting galactic-dimensioned current filaments show bursts of synchrotron radiation of energy density 1.2 x 10 to the -13th erg/cu cm which can be compared with the measured cosmic microwave background energy density of 1.5 x 10 to the -13th erg/cu cm. However, the synchrotron emission observed in the simulations is not blackbody. In this paper, the absorption of the synchrotron emission by the current filaments themselves (i.e., self-absorption) is analyzed in order to investigate the thermalization of the emitted radiation. It is found that a large number of current filaments (greater than 10 to the 31st) are needed to make the radiation spectrum blackbody up to the observed measured frequency of 100 GHz. The radiation spectrum and the required number of current filaments are a strong function of the axial magnetic field in the filaments.
Peratt Anthony L.
Peter William
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