Physical conditions in radio jets and re-acceleration of relativistic electrons by MHD turbulence

Details Physical conditions in radio jets and re-acceleration of relativistic electrons by MHD turbulence Physical conditions in radio jets and re-acceleration of relativistic electrons by MHD turbulence

Mar 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984cha%26a...8...72q&link_type=abstract

Chinese Astronomy and Astrophysics, Volume 8, Issue 1, p. 72-76.

Astronomy and Astrophysics

Astrophysics

Scientific paper

Based on the observed features and physical conditions in the radio jets of several low-luminosity radio galaxies, I discuss the re-acceleration of relativistic electrons. On assuming a Fermi type acceleration, an acceleration coefficient of ~10-15 s-1 was obtained, which can well explain the radio brightness distribution in the jets and their spectrum. I further discuss the possibility of MHD turbulence providing the acceleration, and find that the turbulence energy spectral index must be restricted to the very narrow range 1.6-1.7.

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