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- Title
ABOUT EQUATIONS OF STATE AND OTHER QUANTITIES RELATED TO MICROPHYSICS.
- Authors
Massacrier, G.
- Abstract
Stellar modelling challenges the physicist to provide accurate data for a lot of processes in a wide range of conditions. This ends in the use of patchy results from microscopic models that aimed initially at peculiar physical domains. Very often various quantities such as thermodynamics quantities, opacities, diffusion coefficients or conductivities, are obtained from different sources. It is thus of importance to construct first principles models of general application. We focus this talk on warm dense matter, as encountered in low-mass or compact stars, and where pressure ionization has dramatic effects. We present equation of state computations from a model we have developed that treat quantum mechanically bound as well as de-localized electrons. It goes beyond the usual Average-Atom models in treating separately ionic charges, and extends from low to high densities. On the experimental side recent years have seen significant advances in the creation and the diagnostics of plasmas under these extreme conditions. A brief account will be given on what might be expected as far as quantities of astrophysical interest are concerned.
- Subjects
MICROPHYSICS; EQUATIONS of state; THERMODYNAMICS research; COMPACT objects (Astronomy); STELLAR evolution
- Publication
EAS Publications Series, 2013, Vol 63, p305
- ISSN
1633-4760
- Publication type
Article
- DOI
10.1051/eas/1363034