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Causal Representations of Neutron-Star Equations of State

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arxiv 1804.04072 v2 pith:2HRWTLF4 submitted 2018-04-11 astro-ph.HE

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keywords staterepresentationscausalequationequationsmeasurepresentedaccuracy
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Parameterized representations of the equation of state play an important role in efforts to measure the properties of the matter in the cores of neutron stars using astronomical observations. New representations are presented here that are capable of representing any equation of state to any desired level of accuracy, while automatically imposing causality and thermodynamic stability constraints. Numerical tests are presented that measure how accurately and efficiently these new parameterizations represent a collection of causal nuclear-theory model equations of state.

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Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Smooth equations of state for high-accuracy simulations of neutron star binaries

    gr-qc 2019-08 conditional novelty 6.0 of 10

    Spectral equations of state reduce cost and improve accuracy in SpEC neutron star merger simulations, but the most efficient choice requires an unrealistic low-density recipe.

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