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Title:
Relativistic thermal plasmas - Time development of electron-positron pair concentration
Authors:
Kusunose, Masaaki
Affiliation:
AA(Tokyo Astronomical Observatory, Mitaka, Japan)
Publication:
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 321, Oct. 1, 1987, p. 186-198. (ApJ Homepage)
Publication Date:
10/1987
Category:
Astrophysics
Origin:
STI
NASA/STI Keywords:
Electron-Positron Pairs, Electron-Positron Plasmas, Galactic Nuclei, High Temperature Plasmas, Pair Production, Radiative Transfer, Relativistic Plasmas, Thermal Plasmas, Active Galactic Nuclei, Computational Astrophysics, Electron Energy, Electrons, Positrons, Temperature Dependence, Time Dependence
DOI:
10.1086/165623
Bibliographic Code:
1987ApJ...321..186K

Abstract

The time evolution of a relativistic pair-equilibrium plasma confined in a uniformly or impulsively heated sphere is investigated analytically, starting from initial conditions appropriate for a plasma in an AGN. The formulations for pair processes, radiative transfer, photon production, Compton scattering, and the energy equations are explained, and numerical results are presented in extensive graphs and characterized in detail. It is found that the pair equilibrium is stable under constant heating, but that extreme changes in electron temperature, pair density, and luminosity occur for larger amounts of impulsive heating.

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