Asymmetric nuclear matter and neutron star properties
Abstract
We calculate properties of neutron stars such as mass and radius using a relativistic Dirac-Brueckner-Hartree-Fock approach. Modern meson-exchange potential models are used to evaluate the G matrix for asymmetric nuclear matter. For pure neutron matter we find the maximum mass to be Mmax~=2.4Msolar for a radius R~=12 km, whereas with a proton fraction of 30% we find Mmax~=2.1Msolar for a radius R~=10.5 km, close to the experimental values. The implications are discussed.
- Publication:
-
Physical Review Letters
- Pub Date:
- November 1994
- DOI:
- 10.1103/PhysRevLett.73.2650
- arXiv:
- arXiv:nucl-th/9406028
- Bibcode:
- 1994PhRvL..73.2650E
- Keywords:
-
- 97.60.Jd;
- 21.65.+f;
- Neutron stars;
- Nuclear matter;
- Nuclear Theory
- E-Print:
- 12 pages in Revtex, 3 figs can be obtained upon request