Superdense degenerate plasma.
Abstract
The properties of a degenerate superdense plasma are investigated. It is shown that pionization should replace neutronization at densities in excess of 34 billion g/cu cm and that the relative number of negative pions in nuclei should increase monotonically with increasing density, while the relative concentrations of neutrons and protons remain frozen at the respective values of 0.6 and 0.4. A phase transition to solid nuclear matter is predicted at a density of 600 billion g/cu cm and a pressure of 6.6 by 10 to the 29th power erg/cu cm. The respective numbers of neutrons, protons, and pions in this phase are determined as 0.591, 0.409, and 0.406 times the number of nucleons. The state of such matter is found to be similar to the liquid state; i.e., the matter is in a bound state (negative nucleon chemical potentials) and is incompressible up to pressures of the order of 5 by 10 to the 33rd power erg/cu cm. A hadron plasma at supernuclear densities is considered qualitatively, and the equation of state of a degenerate plasma is obtained for a range of appropriate densities.
- Publication:
-
Astrofizika
- Pub Date:
- November 1977
- Bibcode:
- 1977Afz....13..669S
- Keywords:
-
- Astrophysics;
- Degenerate Matter;
- Dense Plasmas;
- Neutron Stars;
- Nuclear Transformations;
- Stellar Structure;
- Astronomical Models;
- Baryons;
- Equations Of State;
- Hadrons;
- Muons;
- Neutrons;
- Nuclear Particles;
- Pions;
- Astrophysics