Dark matter admixed neutron star as a possible compact component in the GW190814 merger event

Abstract

We put constraints on the secondary component of GW190814 by analyzing the observational data of the event. The relativistic mean-field models are used to calculate the mass-radius profile and tidal deformability of the compact object, considering it as a massive neutron star with the presence of dark matter particles inside it. With the increase of dark matter percentage, the maximum mass, radius, and tidal deformability of the neutron star decreases. We observe that the predicted properties are well consistent with GW190814 observational data, suggesting the possibility of a dark matter admixed neutron star if the underlying nuclear equation of state is sufficiently stiff.

6 pages, 4 figures, 1 table, accepted for publication in PRD

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Cited by in corpus (13)

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• Dark Matter Effects on the Compact Star Properties
• Dark matter effects on hybrid star properties
• $I-$Love$-C$ relation for an anisotropic neutron star
• Dynamical evolution of dark matter admixed neutron stars
• Rotating dark matter admixed neutron stars
• Vector dark boson mediated feeble interaction between fermionic dark matter and strange quark matter in quark stars
• Bosonic dark matter dynamics in hybrid neutron stars
• Towards Uncovering Dark Matter Effects on Neutron Star Properties: A Machine Learning Approach
• Impacts of symmetry energy slope on the oscillation frequencies of neutron stars with short-range correlation and admixed dark matter
• Accretion-induced Collapse of Dark Matter-admixed Rotating White Dwarfs: Dynamics and Gravitational-wave Signals
• Systematic study for the surface properties of neutron star
• Applying higher-modes consistency test on GW190814 : lessons on no-hair theorem, nature of the secondary compact object and waveform modeling