Astronomy and Astrophysics – Astronomy
Scientific paper
Apr 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987ap%26ss.132..213t&link_type=abstract
Astrophysics and Space Science (ISSN 0004-640X), vol. 132, no. 2, April 1987, p. 213-248.
Astronomy and Astrophysics
Astronomy
35
Cosmic Rays, Extraterrestrial Radio Waves, Plasma Radiation, Radio Astronomy, Relativistic Electron Beams, Plasma Turbulence, Power Spectra, Spectral Energy Distribution, Synchrotron Radiation
Scientific paper
The present examination of ultrarelativistic particles in a quasi-uniform magnetic field on which magnetic, electrical and electron density inhomogeneities created in a turbulent plasma are superposed indicates that the radiation spectrum from a particle of a given energy acquires a high frequency power-law tail with the same spectral index as the index nu of small scale turbulence. In the high frequency range, nu is determined by small scale magnetic and electric fields; at intermediate frequencies, the main contribution is from the synchrotron radiation in a large-scale field. The possibility of diagnostics for high frequency cosmic plasma turbulence from radiation of high energy particles is discussed.
Fleishman Gregory D.
Toptygin Igor N.
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