A study of electron-positron pair equilibria in models of compact X- and gamma-ray sources
type: CreativeWork
description: This thesis studies thermal electron-positron pair equilibria in two temperature models of compact $X$- and $\gamma$-ray sources. The radiation field is taken to be Comptonized bremsstrahlung. The pairs are assumed to be heated by Coulomb interaction with the much hotter protons and to cool by bremsstrahlung emission, Compton scattering and annihilation. Two parameters, the 'proton optical depth' and the compactness, characterize each equilibrium state.
abstract: This thesis studies thermal electron-positron pair equilibria in two temperature models of compact $X$- and $\gamma$-ray sources. The radiation field is taken to be Comptonized bremsstrahlung. The pairs are assumed to be heated by Coulomb interaction with the much hotter protons and to cool by bremsstrahlung emission, Compton scattering and annihilation. Two parameters, the 'proton optical depth' and the compactness, characterize each equilibrium state.
author: Bjornsson, Gunnlaugur
language: eng
keywords: Physics, Astronomy and Astrophysics
date published: 2011-05-07T13:22:28Z
date modified: 2026-07-22T22:25:18Z
provider: University of Illinois - Urbana-Champaign
publisher: Networked Digital Library of Theses and Dissertations
type: WebPage
source organization: University of Illinois at Urbana-Champaign

PropertyValue
property ID: Handle
value: http://hdl.handle.net/2142/21895