Neutron Star Equation of State in light of GW190814
High Energy Astrophysical Phenomena
2021-01-04 v2 General Relativity and Quantum Cosmology
Nuclear Theory
Abstract
The observation of gravitational waves from an asymmetric binary opens the possibility for heavy neutron stars, but these pose challenges to models of the neutron star equation of state. We construct heavy neutron stars by introducing non-trivial structure in the speed of sound sourced by deconfined QCD matter, which cannot be well recovered by spectral representations. Their moment of inertia, Love number and quadrupole moment are very small, so a tenfold increase in sensitivity may be needed to test this possibility with gravitational waves, which is feasible with third generation detectors.
Cite
@article{arxiv.2006.16296,
title = {Neutron Star Equation of State in light of GW190814},
author = {Hung Tan and Jacquelyn Noronha-Hostler and Nico Yunes},
journal= {arXiv preprint arXiv:2006.16296},
year = {2021}
}
Comments
8 pages, 5 figures, v2 updated figures and text