1997/11/22 by G. Q. Luo · 1 citation
Earth and Planetary Sciences · Engineering · Physics and Astronomy · #Coulomb #Coulomb explosion #Coupling (piping) #Domain (mathematical analysis) #Electron #Equation of state #High-pressure geophysics and materials #Internal energy #Ionization #Phase Equilibria and Thermodynamics #Quantum, superfluid, helium dynamics #astro-ph
paper · pdf · doi:10.1086/304950
published as Astrophysical J. 490, (1997) · 10 pages, 8 figures, ApJ, accepted, E-mail: [email protected]
arxiv created 1997/11/22 · openalex publication_date 1997/12/10 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/06
An equation of state for the domain extending from hot gases to cool dense fluids is formulated for a hydrogen-helium mixture. The physical processes take account of temperature ionization and dissociation, electron degeneracy, Coulomb coupling, and pressure ionization. Pressure ionization and Coulomb coupling are studied with simple and comprehensive modeling. A single and complete algorithm is achieved, with explicit expressions available for the whole domain from hot gases to cool dense fluids ( T > 10 2 K). Pressure ionization and Coulomb coupling have been examined for their contributions to the pressure and internal energy. The result reveals that their contributions smooth the variation of the pressure and internal energy in the region of pressure ionization even at very low temperatures.