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Author Zhang, Yunchao ♦ Charles, Christine ♦ Boswell, Rod
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword ASTROPHYSICS, COSMOLOGY AND ASTRONOMY ♦ APPROXIMATIONS ♦ CORRELATIONS ♦ DATA ANALYSIS ♦ DENSITY ♦ DISTRIBUTION ♦ ELECTRON TEMPERATURE ♦ ELECTRONS ♦ ENTHALPY ♦ LTE ♦ PLASMA ♦ PLASMA POTENTIAL ♦ SOLAR WIND ♦ SPACE ♦ THERMODYNAMICS
Abstract Non-local electron energy probability functions (EEPFs) are shown to have an important effect on the thermodynamic behavior of plasmas in the context of solar wind and laboratory plasmas. A conservation relation is held for electron enthalpy and plasma potential during the electron transport. For an adiabatic system governed by non-local electron dynamics, the correlation between electron temperature and density can be approximated by a polytropic relation, with different indexes demonstrated using three cases of bi-Maxwellian EEPFs. This scenario differs from a local thermodynamic equilibrium having a single polytropic index of 5/3 for adiabaticity.
ISSN 0004637X
Educational Use Research
Learning Resource Type Article
Publisher Date 2016-09-20
Publisher Place United States
Journal Astrophysical Journal
Volume Number 829
Issue Number 1


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