Finite-temperature Equations of State for Neutron Star Mergers
arXiv:1906.08440 · doi:10.1103/PhysRevD.100.066027
Abstract
The detection of gravitational waves from a neutron star merger has opened up the possibility of detecting the presence or creation of deconfined quark matter using the gravitational wave signal. To investigate this possibility, we construct a family of neutron star matter equations of state at nonzero density and temperature by combining state-of-the-art nuclear matter equations of state with holographic equations of state for strongly interacting quark matter. The emerging picture consistently points toward a strong first order deconfinement transition, with a temperature-dependent critical density and latent heat that we quantitatively examine. Recent neutron star mass measurements are further used to discriminate between the different equations of state obtained, leaving a tightly constrained family of preferred equations of state.
arXiv comment8 pages, 6 figures; v2: new table and figure, refs. and discussion added, revised and published version; ancillary material with v1
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