2019/01/16 by Eva Lope Oter, Andreas Windisch, Felipe J. Llanes-Estrada +2
Physics and Astronomy · #Equation of state #General relativity #Hadron #High-Energy Particle Collisions Research #Neutron star #Pulsars and Gravitational Waves Research #Quantum Chromodynamics and Particle Interactions #Set (abstract data type) #Star (game theory) #State (computer science) #astro-ph.HE #gr-qc #hep-ph #nucl-th
paper · pdf · doi:10.1088/1361-6471/ab2567
published as J. Phys. G: Nucl. Part. Phys. 46 084001 (2019) · 16 pages with 11 plots
arxiv created 2019/01/16 · openalex created_date 2019/01/25 · openalex publication_date 2019/05/29 · arxiv updated 2021/03/24 · openalex updated_date 2026/08/06
Abstract We contribute a publicly available set of tables and code to provide equations of state (EoS) for matter at neutron star densities. Our EoS are constrained only by input from hadron physics and fundamental principles, without feedback from neutron star observations, and so without relying on general relativity (GR). They can therefore be used to test GR itself, as well as modified gravity theories, with neutron star observables, without logical circularity. We have adapted state of the art results from NN chiral potentials for the low-density limit, pQCD results for the asymptotically high-density EoS, and use monotony and causality as the only restrictions for intermediate densities, for the EoS sets to remain as model-independent as is feasible today.