Sensitivity of the Moment of Inertia of Neutron Stars to the Equation of State of Neutron-Rich Matter - Nuclear TheoryReportar como inadecuado




Sensitivity of the Moment of Inertia of Neutron Stars to the Equation of State of Neutron-Rich Matter - Nuclear Theory - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

Abstract: The sensitivity of the stellar moment of inertia to the neutron-star matterequation of state is examined using accurately-calibrated relativisticmean-field models. We probe this sensitivity by tuning both the densitydependence of the symmetry energy and the high density component of theequation of state, properties that are at present poorly constrained byexisting laboratory data. Particularly attractive is the study of the fractionof the moment of inertia contained in the solid crust. Analytic treatments ofthe crustal moment of inertia reveal a high sensitivity to the transitionpressure at the core-crust interface. This may suggest the existence of astrong correlation between the density dependence of the symmetry energy andthe crustal moment of inertia. However, no correlation was found. We concludethat constraining the density dependence of the symmetry energy - through, forexample, the measurement of the neutron skin thickness in 208Pb - will place nosignificant bound on either the transition pressure or the crustal moment ofinertia.



Autor: F. J. Fattoyev, J. Piekarewicz

Fuente: https://arxiv.org/







Documentos relacionados