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Neutron star quantum death by small black holes
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Simulating magnetized neutron stars with discontinuous Galerkin methods
Discontinuous Galerkin methods are popular because they can achieve high order where the solution is smooth, because they can capture shocks while needing only nearest-neighbor communication, and because they are relatively easy to formulate on complex meshes. We perform a detailed comparison of various limiting strategies presented in the literature applied to the equations of general relativistic magnetohydrodynamics. We compare the standard minmod /ΛΠ N limiter, the hierarchical limiter of Krivodonova, the simple WENO limiter, the HWENO limiter, and a discontinuous Galerkin-finite-difference hybrid method. The ultimate goal is to understand what limiting strategies are able to robustly simulate magnetized Tolman-Oppenheimer-Volkoff stars without any fine-tuning of parameters. Among the limiters explored in the paper, the only limiting strategy we can endorse is a discontinuous Galerkin-finite-difference hybrid method.
Heating neutron stars with inelastic dark matter and relativistic targets
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Effects of annihilation with low-energy neutrinos on high-energy neutrinos from binary neutron star mergers and rare core-collapse supernovae
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Equation of state at neutron-star densities and beyond from perturbative QCD
We explore the consequences of imposing robust thermodynamic constraints arising from perturbative quantum chromodynamics (QCD) when inferring the dense-matter equation-of-state (EOS). We find that the termination density, up to which the EOS modeling is performed in an inference setup, strongly affects the constraining power of the QCD input. This sensitivity in the constraining power arises from EOSs that have a specific form, with drastic softening immediately above the termination density followed by a strong stiffening. Here we also perform explicit modeling of the EOS down from perturbative-QCD densities to construct a new QCD likelihood function that incorporates additional perturbative-QCD calculations of the sound speed and is insensitive to the termination density, which we make publicly available.
Relativistic bulk rheology: From neutron star mergers to viscous cosmology
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Revealing phase transition in dense matter with gravitational wave spectroscopy of binary neutron star mergers
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Viscous hydrodynamic evolution of neutron star merger accretion disks: A code comparison
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Remnant masses from 1 D + core-collapse supernovae simulations: Bimodal neutron star mass distribution and black holes in the low-mass gap
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Uncertainty quantification in the machine-learning inference from neutron star probability distribution to the equation of state
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Bulk viscosity of two-color superconducting quark matter in neutron star mergers
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Neutron Star Internal Heating Constraints on Mirror Matter
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Improved Λ p Elastic Scattering Cross Sections between 0.9 and 2.0 GeV / c as a Main Ingredient of the Neutron Star Equation of State
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