Symmetry energy effects on location of the inner edge of neutron star crusts

2012/02/21 by Moustakidis, Ch. C.
#FOS: Physical sciences #Nuclear Theory (nucl-th) #Solar and Stellar Astrophysics (astro-ph.SR)

paper · doi:10.48550/arxiv.1202.4662

Abstract

The symmetry energy effects on the location of the inner edge of neutron star crusts are studied. Three phenomenological models are employed in order to check the accuracy of the well known parabolic approximation of the equation of state for asymmetric nuclear matter in the determination of the transition density n_t and transition pressure P_t. The results corroborate the statement that the error due to the assumption that a priori the equation of state is parabolic may introduce a large error in the determination of related properties of a neutron star as the crustal fraction of the moment of inertia and the critical frequency of rotating neutron stars.

Related

• Systematic analysis of symmetry energy effects in the neutron star crust properties
• Nuclear constraints on the core-crust transition density and pressure of neutron stars
• Impacts of the Nuclear Symmetry Energy on Neutron Star Crusts
• The nuclear symmetry energy, the inner crust, and global neutron star modeling
• Characterization of the inner edge of the neutron star crust