Physics – Nuclear Physics
Scientific paper
Nov 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998phrvc..58.2781m&link_type=abstract
Physical Review C (Nuclear Physics), Volume 58, Issue 5, November 1998, pp.2781-2786
Physics
Nuclear Physics
35
Nuclear Matter, Nuclear Matter Aspects Of Neutron Stars, Specific Phase Transitions
Scientific paper
The isothermal and isentropic incompressibility of asymmetrical nuclear matter are investigated in the framework of the lowest order constrained variational method. Various phenomenological nucleon-nucleon interactions, namely, the Reid, the Δ-Reid, and the new Argonne potentials are used. It is found that the temperature as well as the asymmetry parameter reduce the incompressibility of asymmetrical nuclear matter. The pressure is calculated along isentropic paths. It is shown that the equation state is much harder than the one usually assumed in the hydrodynamical simulations of supernova collapse. Various discussions are made in connection with the problem of supernova explosions and other many-body model calculations.
Bordbar Gholam Hossein
Modarres M.
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