Astronomy and Astrophysics – Astrophysics
Scientific paper
May 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992aipc..254..317b&link_type=abstract
In: Testing the AGN paradigm; Proceedings of the 2nd Annual Topical Astrophysics Conference, Univ. of Maryland, College Park, Oc
Astronomy and Astrophysics
Astrophysics
1
Active Galactic Nuclei, Elastic Scattering, Electron Energy, Inelastic Collisions, Particle Production, Relativistic Particles, Bremsstrahlung, Coulomb Collisions, Shock Wave Interaction
Scientific paper
The production of relativistic electrons by elastic and inelastic collisional mechanisms is studied, with the view to assessing whether they can provide suitable injections for AGN pair cascade models. A distribution of relativistic protons is injected into the emission region, perhaps by shock acceleration, and these collide with the protons and pairs in the ambient thermal gas. The e-p collisions boost the cold electrons to relativistic energies by Coulomb scattering and bremsstrahlung. The p-p collisions are inelastic and create electrons through pion decay modes. Here it is observed that significant electron injection luminosities can be generated via these processes. It is also suggested that the peak luminosity at gamma(c) about 100 that is required in pair cascade models can be produced via the decay of charged pions and also by pair production between X-rays and the photonic decay products of neutral pions. The inelastic processes generate high-energy power-law electron injections.
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