Theory of Nuclear Matter for Neutron Stars and ... - Graduate Physics
Theory of Nuclear Matter for Neutron Stars and ... - Graduate Physics
Theory of Nuclear Matter for Neutron Stars and ... - Graduate Physics
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3.3 Optimized Parameter Set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 453.4 <strong>Nuclear</strong> Surface Tension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 494 Gaussian Type Finite Range model 524.1 <strong>Nuclear</strong> Density Functional <strong>Theory</strong> . . . . . . . . . . . . . . . . . . . . . . . 524.1.1 Energy density functional . . . . . . . . . . . . . . . . . . . . . . . . 524.1.2 Effective mass, Potential, <strong>and</strong> Thermodynamic properties . . . . . . . 544.2 Parameters <strong>for</strong> the Gaussian nuclear density functional . . . . . . . . . . . . 554.2.1 Determination <strong>of</strong> the 1+ǫ power . . . . . . . . . . . . . . . . . . . . 584.2.2 The effective range <strong>of</strong> the nuclear <strong>for</strong>ce : r 0 . . . . . . . . . . . . . . . 584.3 <strong>Nuclear</strong> matter <strong>and</strong> nuclei . . . . . . . . . . . . . . . . . . . . . . . . . . . . 604.3.1 Specific heat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 604.3.2 Nuclei at T = 0 MeV . . . . . . . . . . . . . . . . . . . . . . . . . . . 614.3.3 Heavy nuclei in the neutron star crust . . . . . . . . . . . . . . . . . 614.4 Phase transition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 644.4.1 Uni<strong>for</strong>m matter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 644.4.2 Quark matter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 664.5 Astrophysical application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 694.5.1 Mass-radius relation <strong>of</strong> a cold neutron star . . . . . . . . . . . . . . . 694.5.2 Moment <strong>of</strong> inertia <strong>of</strong> the neutron star . . . . . . . . . . . . . . . . . . 694.6 Conclusions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 715 <strong>Nuclear</strong> Energy Density Functional <strong>and</strong> <strong>Neutron</strong> <strong>Stars</strong> 725.1 <strong>Nuclear</strong> energy density functional . . . . . . . . . . . . . . . . . . . . . . . . 725.2 Binding energy <strong>of</strong> single nucleus . . . . . . . . . . . . . . . . . . . . . . . . . 745.3 <strong>Neutron</strong> Star Crust . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 755.3.1 <strong>Neutron</strong> drip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 755.3.2 Phase transition to uni<strong>for</strong>m nuclear matter . . . . . . . . . . . . . . . 765.3.3 Statistical <strong>for</strong>mulae <strong>for</strong> heavy nuclei . . . . . . . . . . . . . . . . . . . 765.4 Mass-Radius <strong>of</strong> a cold neutron star . . . . . . . . . . . . . . . . . . . . . . . 785.5 Conclusion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 806 <strong>Nuclear</strong> Equation <strong>of</strong> State <strong>for</strong> Hot Dense <strong>Matter</strong> 816.1 Construction <strong>of</strong> EOS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 816.2 Liquid Droplet Model as a numerical technique . . . . . . . . . . . . . . . . 826.3 Choice <strong>of</strong> nuclear <strong>for</strong>ce model . . . . . . . . . . . . . . . . . . . . . . . . . . 866.3.1 Pure neutron matter . . . . . . . . . . . . . . . . . . . . . . . . . . . 876.3.2 Maximum mass <strong>of</strong> a cold neutron star . . . . . . . . . . . . . . . . . 876.3.3 Allowed region <strong>of</strong> mass <strong>and</strong> radii <strong>of</strong> neutron stars . . . . . . . . . . . 876.4 Free energy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 886.4.1 Bulk <strong>Matter</strong> inside <strong>and</strong> outside nuclei . . . . . . . . . . . . . . . . . . 896.4.2 Coulomb energy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 896.4.3 <strong>Nuclear</strong> surface energy . . . . . . . . . . . . . . . . . . . . . . . . . . 906.4.4 <strong>Nuclear</strong> translational energy . . . . . . . . . . . . . . . . . . . . . . . 946.4.5 Alpha particles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94vii