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arXiv · 2302.11359

Thermal Effects in Binary Neutron Star Mergers

Jacob Fields·Aviral Prakash·Matteo Breschi·David Radice·Sebastiano Bernuzzi·André da Silva Schneider
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Abstract

We study the impact of finite-temperature effects in numerical-relativity simulations of binary neutron star mergers with microphysical equations of state and neutrino transport in which we vary the effective nucleon masses in a controlled way. We find that, as the specific heat is increased, the merger remnants become colder and more compact due to the reduced thermal pressure support. Using a full Bayesian analysis, we demonstrate that this effect will be measurable in the postmerger gravitational wave signal with next-generation observatories at signal-to-noise ratios of 15.

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Jacob Fields, Aviral Prakash, Matteo Breschi, David Radice, Sebastiano Bernuzzi, André da Silva Schneider. 2023-02-22. Thermal Effects in Binary Neutron Star Mergers. https://doi.org/10.3847/2041-8213/ace5b2

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