Stiffness effects on the dynamics of the bar-mode instability of neutron stars in full general relativity

Frank Löffler, Roberto De Pietri, Alessandra Feo, Francesco Maione, and Luca Franci
Phys. Rev. D 91, 064057 – Published 25 March 2015

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 Γ index from 2.0 to 3.0, including two values chosen to mimic more realistic equations of state at high densities.

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  • Received 10 November 2014

DOI:https://doi.org/10.1103/PhysRevD.91.064057

© 2015 American Physical Society

Authors & Affiliations

Frank Löffler

  • Center for Computation & Technology, Louisiana State University, Baton Rouge, Louisiana 70803, USA

Roberto De Pietri, Alessandra Feo, and Francesco Maione

  • Parma University and INFN Parma, via G.P. Usberti 7/A, I-43124 Parma (PR), Italy

Luca Franci

  • Dipartimento di Fisica e Astronomia, Università di Firenze - INFN Sezione di Firenze, I-50019 Sesto Fiorentino (FI), Italy

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Vol. 91, Iss. 6 — 15 March 2015

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