Future high-frequency-sensitive GW detectors can distinguish binary neutron star from low-mass black hole mergers in late phases, enabling separation of merger rates and constraints on heavy non-annihilating dark matter via transmuted black holes.
Hybrid stars that masquerade as neutron stars
5 Pith papers cite this work. Polarity classification is still indexing.
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Pith papers citing it
abstract
We show that a hybrid (nuclear + quark matter) star can have a mass-radius relationship very similar to that predicted for a star made of purely nucleonic matter. We show this for a generic parameterization of the quark matter equation of state, and also for an MIT bag model, each including a phenomenological correction based on gluonic corrections to the equation of state. We obtain hybrid stars as heavy as 2 M_solar for reasonable values of the bag model parameters. For nuclear matter, we use the equation of state calculated by Akmal, Pandharipande, and Ravenhall using many-body techniques. Both mixed and homogeneous phases of nuclear and quark matter are considered.
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MCMC fits of degenerate fermionic dark matter models to eight classical dwarf spheroidal galaxies constrain fermion masses to 100-300 eV and show current data do not strongly favor interacting over non-interacting equations of state.
The study examines the effects of hyperons and H-dibaryons on f-mode oscillations in neutron stars using the quark meson coupling model and tests universal relations in the Cowling approximation.
Steep matter-density gradients in neutron stars can produce neutrino-antineutrino pairs analogous to the Schwinger effect.
New phenomenological anisotropy profiles in hybrid stars, driven by superconductivity and magnetic fields, lead to enhanced masses and continuous gravitational wave emission.
citing papers explorer
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Distinguishing Neutron Star vs. Low-Mass Black Hole Binaries with Late Inspiral & Postmerger Gravitational Waves $-$ Sensitivity to Transmuted Black Holes and Non-Annihilating Dark Matter
Future high-frequency-sensitive GW detectors can distinguish binary neutron star from low-mass black hole mergers in late phases, enabling separation of merger rates and constraints on heavy non-annihilating dark matter via transmuted black holes.
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Dwarf Galaxy Constraints on Interacting Fermionic Dark Matter
MCMC fits of degenerate fermionic dark matter models to eight classical dwarf spheroidal galaxies constrain fermion masses to 100-300 eV and show current data do not strongly favor interacting over non-interacting equations of state.
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$f$-mode Oscillations for Hyperons and H-dibaryons in Neutron Stars
The study examines the effects of hyperons and H-dibaryons on f-mode oscillations in neutron stars using the quark meson coupling model and tests universal relations in the Cowling approximation.
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Gradient-Produced Neutrinos
Steep matter-density gradients in neutron stars can produce neutrino-antineutrino pairs analogous to the Schwinger effect.
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Anisotropic hybrid stars: Interplay of superconductivity and magnetic field leading to gravitational waves
New phenomenological anisotropy profiles in hybrid stars, driven by superconductivity and magnetic fields, lead to enhanced masses and continuous gravitational wave emission.