Probing Dark Star Parameters Through -Mode Gravitational Wave Signals
arXiv:2501.12031 · doi:10.1103/PhysRevD.111.023034
Abstract
Theoretical models of self-interacting dark matter offer a promising solution to several unresolved issues within the collisionless cold dark matter framework. For asymmetric dark matter, these self-interactions may encourage gravitational collapse, potentially leading to the creation of compact objects primarily composed of dark matter. By considering both fermionic and bosonic equations of state, we analyze the equilibrium structure of non-rotating dark stars, examining their bulk properties and comparing them with baryonic neutron stars. We show that the frequency and damping rate of -mode oscillations of dark compact stars can be expressed in terms of universal functions of stellar mass, radius and moment of inertia. Finally, by employing the universality in the -mode, we propose a scheme to infer accurate values of the physical parameters of dark compact stars from their -mode gravitational wave signal.
References in corpus (20)
- Too big to fail? The puzzling darkness of massive Milky Way subhaloes
- Tidal Love numbers of neutron stars
- Constraining neutron star tidal Love numbers with gravitational wave detectors
- Exploring the Sensitivity of Next Generation Gravitational Wave Detectors
- Constraints on a phenomenologically parameterized neutron-star equation of state
- Asymmetric Dark Matter
- Post-1-Newtonian tidal effects in the gravitational waveform from binary inspirals
- Dark Matter from new Technicolor Theories
- Dark matter and the first stars: a new phase of stellar evolution
- Ultra Minimal Technicolor and its Dark Matter TIMP
- Compact stars made of fermionic dark matter
- Multipolar universal relations between f-mode frequency and tidal deformability of compact stars
- Fundamental oscillation modes of neutron stars: validity of universal relations
- Oscillations of rapidly rotating relativistic stars
- Tidal Deformability of Dark Matter Admixed Neutron Stars
- Tidal deformability of neutron and hyperon star with relativistic mean field equations of state
- Unparticle & Higgs as Composites
- Universal and approximate relations for the gravitational-wave damping timescale of -modes in neutron stars
- The impact of asymmetric dark matter on the thermal evolution of nucleonic and hyperonic compact stars
- Fundamental oscillation modes of scalar bosonic dark stars