Radial oscillations of quark stars admixed with dark matter

Abstract

We investigated compact stars consisting of cold quark matter and fermionic dark matter treated as two admixed fluids. We computed the stellar structures and fundamental radial oscillation frequencies for different masses of the dark fermion in the cases of weak and strong self-interacting dark matter. We found that the fundamental frequency can be dramatically modified and, in some cases, stable dark strange planets and dark strangelets with very low masses and radii can be formed.

v2: 27 pages, 8 figures, some technical details and minor clarifications added, matches published version

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Cited by in corpus (15)

• How perturbative QCD constrains the Equation of State at Neutron-Star densities
• The Second Love Number of Dark Compact Planets and Neutron Stars with Dark Matter
• Bosonic Dark Matter in Light of the NICER Precise Mass-Radius Measurements
• Dark Matter or Regular Matter in Neutron Stars? How to tell the difference from the coalescence of compact objects
• Dark matter effects on hybrid star properties
• Dynamical evolution of dark matter admixed neutron stars
• Exploring the distribution and impact of bosonic dark matter in neutron stars
• Vector dark boson mediated feeble interaction between fermionic dark matter and strange quark matter in quark stars
• Constraining the mass of fermionic dark matter from its feeble interaction with hadronic matter via dark mediators in neutron stars
• Radial Mode Stability of Two-Fluid Neutron Stars
• Strange magnetars admixed with fermionic dark matter
• Dynamical evolution of fermion-boson stars with realistic equations of state
• Impact of dark boson mediated feeble interaction between dark matter and hadronic matter on $f$-mode oscillation of neutron stars
• Effects of dark boson mediated feeble interaction between dark matter (DM) and quark matter on $f$-mode oscillation of DM admixed quark stars
• Tidal Deformability as a Probe of Dark Matter in Neutron Stars