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Kilonova Emissions from Neutron Star Merger Remnants: Implications for Nuclear Equation of State

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arxiv 2408.07686 v3 pith:UCEIJWBA submitted 2024-08-14 astro-ph.HE nucl-th

Kilonova Emissions from Neutron Star Merger Remnants: Implications for Nuclear Equation of State

Kelsey A. Lund , Rahul Somasundaram , Gail C. McLaughlin , Jonah M. Miller , Matthew R. Mumpower , Ingo Tews This is my paper
classification astro-ph.HE nucl-th
keywords equationmulti-messengerneutronnuclearobservationsodotpropertiesstar
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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abstract

Multi-messenger observation of binary neutron-star mergers can provide valuable information on the nuclear equation of state (EoS). Here, we investigate to which extent electromagnetic observations of the associated kilonovae allow us to place constraints on the EoS. For this, we use state-of-the-art three-dimensional general-relativistic magneto-hydrodynamics simulations and detailed nucleosynthesis modeling to connect properties of observed light curves to properties of the accretion disk, and hence, the EoS. Using our general approach, we use multi-messenger observations of GW170817/AT2017gfo to study the impact of various sources of uncertainty on inferences of the EoS. We constrain the radius of a $\rm{1.4 M_\odot}$ neutron star to lie within $\rm{10.19\leq R_{1.4}\leq 13.0}$~km and the maximum mass to be $\rm{M_{TOV}\leq 3.06 M_\odot}$.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. nmma: An extended Bayesian framework for Nuclear Multimessenger Astronomy in the Era of Next-Generation Detectors

    astro-ph.IM 2026-07 accept novelty 6.0

    nmma now jointly samples nuclear EoS parameters with GW and EM data via TOV emulators and Fiesta surrogates, delivering 20–60× speedups and future H0–nuclear constraints.

  2. Impact of in situ nuclear networks and atomic opacities on neutron star merger ejecta dynamics, nucleosynthesis, and kilonovae

    astro-ph.HE 2025-12 unverdicted novelty 6.0

    In neutron star merger ejecta simulations, coupling in-situ nuclear networks with composition-dependent thermalization and frequency-dependent opacities changes nucleosynthesis yields, delays and reddens early emissio...