Various Modifications to Debye-H\'uckel Interactions in Solar Equations of State

Autor:	Trampedach, Regner, Däppen, Werner
Rok vydání:	2024
Předmět:	Astrophysics - Solar and Stellar Astrophysics Physics - Plasma Physics
Druh dokumentu:	Working Paper
Popis:	The first order effect of Coulomb forces between the charged particles of a plasma is the well-known Debye-H\"uckel-term. It is a negative contribution to the pressure and energy of the gas, that at high densities will overwhelm the ideal gas contributions and make the gas implode into a black hole. Nature obviously constrains this term, avoiding this fate, but how? We investigate three different mechanisms and their effects on the equation of state and on solar models, and the physical justifications for each of them. We conclude that higher order Coulomb terms in combination with quantum diffraction of electrons, provide the needed convergence. Comment: 10 pages, 2 figures, to be published in Solar Physics (Collection "The Future of Solar Interior Modelling: From a Standard to a Modern View of the Sun")
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2412.07028 Zobrazit plný text záznamu View this record from Arxiv