Finite-temperature Equations of State for Neutron Star Mergers [HEAP]

http://arxiv.org/abs/1906.08440


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 towards 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.

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P. Chesler, N. Jokela, A. Loeb, et. al.
Fri, 21 Jun 19
8/56

Comments: 7 pages, 5 figures