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Author Diaw, A. ♦ Murillo, M. S.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword ASTROPHYSICS, COSMOLOGY AND ASTRONOMY ♦ APPROXIMATIONS ♦ ASTROPHYSICS ♦ BBGKY EQUATION ♦ COMPUTERIZED SIMULATION ♦ COOLING ♦ CORRECTIONS ♦ CORRELATION FUNCTIONS ♦ CORRELATIONS ♦ DENSITY ♦ DENSITY FUNCTIONAL METHOD ♦ DIFFUSION ♦ HYDRODYNAMIC MODEL ♦ IMPURITIES ♦ NEUTRON STARS ♦ PLASMA ♦ RELAXATION ♦ WHITE DWARF STARS
Abstract We develop a multicomponent hydrodynamic model based on moments of the Born–Bogolyubov–Green–Kirkwood–Yvon hierarchy equations for physical conditions relevant to astrophysical plasmas. These equations incorporate strong correlations through a density functional theory closure, while transport enters through a relaxation approximation. This approach enables the introduction of Coulomb coupling correction terms into the standard Burgers equations. The diffusive currents for these strongly coupled plasmas is self-consistently derived. The settling of impurities and its impact on cooling can be greatly affected by strong Coulomb coupling, which we show can be quantified using the direct correlation function.
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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