Finite-temperature equations of state for neutron star mergers

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Chesler , P M , Jokela , N , Loeb , A & Vuorinen , A 2019 , ' Finite-temperature equations of state for neutron star mergers ' , Physical Review D , vol. 100 , no. 6 , 066027 . https://doi.org/10.1103/PhysRevD.100.066027

Title: Finite-temperature equations of state for neutron star mergers
Author: Chesler, Paul M.; Jokela, Niko; Loeb, Abraham; Vuorinen, Aleksi
Contributor: University of Helsinki, Helsinki Institute of Physics
University of Helsinki, Helsinki Institute of Physics
Date: 2019-09-23
Language: eng
Number of pages: 8
Belongs to series: Physical Review D
ISSN: 2470-0010
URI: http://hdl.handle.net/10138/308447
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.
Subject: GRAVITATIONAL-WAVES
OF-STATE
115 Astronomy, Space science
114 Physical sciences
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