We present results on the effect of the stiffness of the equation of state on the dynamical bar-mode instability in rapidly rotating polytropic models of neutron stars in full general relativity. We determine the change in the threshold for the emergence of the instability for a range of the adiabatic Gamma index from 2.0 to 3.0, including two values chosen to mimic more realistic equations of state at high densities.
Stiffness effects on the dynamics of the bar-mode instability of neutron stars in full general relativity / Löffler, Frank; DE PIETRI, Roberto; Feo, Alessandra; Maione, Francesco; Franci, Luca. - In: PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY. - ISSN 1550-7998. - 91:6(2015). [10.1103/PhysRevD.91.064057]
Stiffness effects on the dynamics of the bar-mode instability of neutron stars in full general relativity
DE PIETRI, Roberto;FEO, Alessandra;MAIONE, Francesco;
2015-01-01
Abstract
We present results on the effect of the stiffness of the equation of state on the dynamical bar-mode instability in rapidly rotating polytropic models of neutron stars in full general relativity. We determine the change in the threshold for the emergence of the instability for a range of the adiabatic Gamma index from 2.0 to 3.0, including two values chosen to mimic more realistic equations of state at high densities.| File | Dimensione | Formato | |
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