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$f$-mode oscillations of dark matter admixed quarkyonic neutron star
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abstract
We systematically investigate $f-$mode oscillations ($\ell$ = 2) in quarkyonic neutron stars with dark matter, employing the Cowling approximation within the framework of linearized general relativity. The relativistic mean-field approach is used to compute various macroscopic properties of neutron stars. The analysis focuses on three key free parameters in the model: transition density, QCD confinement scale, and dark matter (DM) Fermi momentum, all of which significantly affect the properties of $f-$mode oscillations. The inclusion of dark matter in quarkyonic equations of state leads to notable variations in $f-$mode frequencies. Despite these changes, several universal relations among the oscillation properties are found to hold, demonstrating their robustness in the presence of dark matter.
Forward citations
Cited by 2 Pith papers
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Role of density profile of sub-GeV dark matter in the properties of dark matter admixed quark stars with Bayesian analysis of dark-NJL model
A model of quark stars with a variable dark matter density profile claims sub-GeV dark matter can satisfy all current compact star constraints.
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Exploring Fermionic Dark Matter Admixed Neutron Stars in the Light of Astrophysical Observations
A Bayesian analysis of dark matter admixed neutron stars finds that astrophysical data constrain only the dark matter fraction, which is governed by the hadronic equation of state stiffness.
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