The incompressibility of hot, neutron-rich nuclear matter

Details The incompressibility of hot, neutron-rich nuclear matter The incompressibility of hot, neutron-rich nuclear matter

Aug 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987a%26a...182l..34v&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 182, no. 1, Aug. 1987, p. L34-L36.

Physics

Condensed Matter

18

Condensed Matter Physics, Dense Plasmas, Incompressibility, Neutron Stars, Supernovae, Hartree Approximation, Proton Density (Concentration), Stellar Physics

Scientific paper

The authors have carried out Hartree-Fock calculations of the nuclear matter incompressibility K at finite temperatures. These calculations cover the range of proton concentrations Ye = Z/A from symmetric matter, i.e. Ye = 0.5, to Ye = 0.25 and temperatures T from 0 to 8-10 MeV; the authors investigate the role of the effective mass of the interaction. For values of T and Ye relevant for stellar collapse calculations, they find that K decreases by a factor 2 to 3 with respect to its value at saturation of symmetric matter. An analytical equation of state is proposed valid up to densities around 1.5 times the nuclear matter saturation density.

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