The plasma jet in M87 - Energy balance and the spectral index

Details The plasma jet in M87 - Energy balance and the spectral index The plasma jet in M87 - Energy balance and the spectral index

Jun 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985pazh...11..438g&link_type=abstract

(Pis'ma v Astronomicheskii Zhurnal, vol. 11, June 1985, p. 438-443) Soviet Astronomy Letters (ISSN 0360-0327), vol. 11, May-June

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Computational Astrophysics, Electron Energy, Galactic Nuclei, Plasma Jets, Spectral Energy Distribution, Cerenkov Radiation, Electron Acceleration, Ion Beams, Magnetoacoustic Waves, Shock Fronts

Scientific paper

The author's theory of ultrarelativistic-electron acceleration through Cerenkov resonance with magnetoacoustic waves that are generated by an ion beam reflected from a shock front is applied to calculate the parameters and radiation spectrum of the plasma jet emerging from the nucleus of the galaxy M87. The abrupt steepening of the optical spectrum toward short wavelengths may indicate that the higher-energy electrons, accelerated predominantly along the magnetic fieldlines, are experiencing too litte scattering with respect to pitch angle. In the soft X-ray range the spectrum flattens again because MHD turbulence in the plasma jet reinstates the pitch-angle scattering. At the highest energies, synchrotron losses once more steepen the spectrum.

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