2024/12/09 by Dey, D., Pattnaik, Jeet Amrit, Panda, R. N. +2 · 5 citations
#FOS: Physical sciences #High Energy Astrophysical Phenomena (astro-ph.HE) #Nuclear Theory (nucl-th)
paper · doi:10.48550/arxiv.2412.06739
We systematically investigate f-mode oscillations (ℓ = 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.