THE ROLE OF THE NUCLEAR MATTER COMPRESSION MODULUS IN NEUTRON STARS

Author:

DEXHEIMER VERÔNICA A.1,VASCONCELLOS CÉSAR A. Z.1,RAZEIRA MOISÉS1,DILLIG MANFRED2

Affiliation:

1. Instituto de Física, Universidade Federal do Rio Grande do Sul, CEP 91501-970 Porto Alegre, RS, Brazil

2. Institut für Theoretische Physik III, der Universität Erlangen-Nürnberg, D91058 Erlangen, Germany

Abstract

For the nuclear many body problem at high densities, formulated in the framework of a relativistic mean-field theory, we investigate in detail the compression modulus of nuclear matter as a function of the effective nucleon mass. We include consistently in our modelling chemical equilibrium as well as baryon number and electric charge conservation and investigate properties of neutron stars. Among other predictions we focus on the dependence of the maximum mass of a sequence of neutron stars as a function of the compression modulus and the nucleon effective mass.

Publisher

World Scientific Pub Co Pte Lt

Subject

Space and Planetary Science,Astronomy and Astrophysics,Mathematical Physics

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