Relativistic electron-positron beam formation in the framework of the two-flow model for active galactic nuclei

Details Relativistic electron-positron beam formation in the framework of the two-flow model for active galactic nuclei Relativistic electron-positron beam formation in the framework of the two-flow model for active galactic nuclei

Dec 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991apj...383l...7h&link_type=abstract

Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 383, Dec. 10, 1991, p. L7-L10.

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81

Accretion Disks, Active Galactic Nuclei, Astronomical Models, Electron-Positron Pairs, Relativistic Electron Beams, Compton Effect, Computational Fluid Dynamics, Electron-Positron Plasmas, Magnetohydrodynamic Flow, Photons, Very Long Base Interferometry

Scientific paper

A model for relativistic beam formation in AGN, in which electrons and positrons are generated by pair cascade on the UV photons of the accretion disk, is proposed. In situ turbulent acceleration by Alfven waves in a pair plasma balances the Compton losses and prevents annihilation. It is shown that, above some threshold of the turbulence level, which is easily achieved, the pair creation becomes catastrophic, and so the dramatic increase of the relativistic pressure expels the pair plasma along the widening tubes.

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