Effect of Scalar Boson on Fermionic Dark Star
arXiv:1901.03390 · doi:10.1142/S0218271819500718
Abstract
The role of scalar boson exchange as a mediator of the fermionic dark particle interaction and the mass of dark particle on the bulk properties of fermionic dark stars including their moment of inertia and tidal deformability are studied. We have found that the role of the attractive nature of the scalar boson exchange and the fermionic dark particle mass can control the stiffness of the fermionic dark star equation of state. By increasing the strength of scalar boson coupling, the fermionic dark star becomes more compact. As a consequence, if scalar boson exchange contribution is included the compactness of a dark star can exceed =0.22. We also compare the fermionic dark stars moment of inertia and tidal deformability to those of neutron stars (with and without hyperons in neutron star core) predicted by relativistic mean field model. It is evidence that the properties of both types of stars are quite different. We also have found that the universal I-Love relation in fermionic dark stars is not affected by scalar boson exchange contribution and the fermionic dark particle mass. Possible observations of fermionic dark stars are also discussed.
arXiv comment27 pages,11 figures, accepted for publication in IJMPD
References in corpus (40)
- Advanced Virgo: a 2nd generation interferometric gravitational wave detector
- Shapiro delay measurement of a two solar mass neutron star
- The Confrontation between General Relativity and Experiment
- A Massive Pulsar in a Compact Relativistic Binary
- Modified Gravity Theories on a Nutshell: Inflation, Bounce and Late-time Evolution
- Observational evidence for self-interacting cold dark matter
- Testing General Relativity with Present and Future Astrophysical Observations
- Characterization of the LIGO detectors during their sixth science run
- Interferometer design of the KAGRA gravitational wave detector
- Tidal deformability of neutron stars with realistic equations of state and their gravitational wave signatures in binary inspiral
- Gravitational-wave constraints on the neutron-star-matter Equation of State
- Neutron-star radius constraints from GW170817 and future detections
- Neutron skins and neutron stars in the multi-messenger era
- Probes and Tests of Strong-Field Gravity with Observations in the Electromagnetic Spectrum
- Dark Matter Detection in the Light of Recent Experimental Results
- Neutron Stars as Dark Matter Probes
- Measurement of the Radius of Neutron Stars with High S/N Quiescent Low-mass X-ray Binaries in Globular Clusters
- Neutron star tidal deformabilities constrained by nuclear theory and experiment
- Effects of mirror dark matter on neutron stars
- Compact stars made of fermionic dark matter
- Distinguishing Boson Stars from Black Holes and Neutron Stars from Tidal Interactions in Inspiraling Binary Systems
- Dark-Matter Admixed Neutron Stars
- Measuring the neutron star tidal deformability with equation-of-state-independent relations and gravitational waves
- Equation of state constraints for the cold dense matter inside neutron stars using the cooling tail method
- Too massive neutron stars: The role of dark matter?
- Asymmetric Dark Matter Stars
- Effects of fermionic dark matter on properties of neutron stars
- Limits on Self-Interacting Dark Matter
- Dark stars: gravitational and electromagnetic observables
- Quark stars admixed with dark matter
- Possible Implications of Asymmetric Fermionic Dark Matter for Neutron Stars
- Nuclear Structure of Bound States of Asymmetric Dark Matter
- Tidal deformability of neutron and hyperon star with relativistic mean field equations of state
- R-mode frequencies of slowly rotating relativistic neutron stars with realistic equations of state
- Dark-matter admixed white dwarfs
- Constraining the equation of state of nuclear matter with gravitational wave observations: Tidal deformability and tidal disruption
- Existence of hyperons in the pulsar PSRJ1614-2230
- Constraining scalar-tensor theories of gravity from the most massive neutron stars
- Gravitational wave echoes from strange stars
- Hyperons in neutron stars within Eddington-inspired Born-Infeld theory of gravity