Can the GW190814 secondary component be a bosonic dark matter admixed compact star?

Abstract

We investigate whether the recently observed 2.6 $M_{\odot }$ compact object in the gravitational-wave event GW190814 can be a bosonic dark matter admixed compact star. By considering the three constraints in mass, radius and stability of such an object, we find that if the dark matter is made of QCD axions, their particle mass $m$ is constrained to a range that has already been ruled out by the independent constraint imposed by the stellar-mass black hole superradiance process. The 2.6 $M_{\odot }$ object can still be a neutron star admixed with at least 2.0 $M_{\odot }$ of dark matter made of axion-like particles (or even a pure axion-like particle star) if $2\times 10^{-11}$ eV $\le m\le 2.4\times 10^{-11}$ eV ($2.9\times 10^{-11}$ eV $\le m\le 3.2\times 10^{-11}$ eV) and with decay constant $f\ge 8\times 10^{17}$ GeV.

14 pages, 8 figures, accepted for publication in ApJ

References in corpus (19)

• GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral
• GW190814: Gravitational Waves from the Coalescence of a 23 M${}_{\odot }$ Black Hole with a 2.6 M${}_{\odot }$ Compact Object
• Constraining the Maximum Mass of Neutron Stars From Multi-Messenger Observations of GW170817
• Discovering the QCD Axion with Black Holes and Gravitational Waves
• Black hole superradiance of self-interacting scalar fields
• GW190814: Impact of a 2.6 solar mass neutron star on nucleonic equations of state
• A lower bound on the maximum mass if the secondary in GW190814 was once a rapidly spinning neutron star
• GW190814 as a massive rapidly-rotating neutron star with exotic degrees of freedom
• Exploring the Lower Mass Gap and Unequal Mass Regime in Compact Binary Evolution
• New insights into the formation and growth of boson stars in dark matter halos
• Testing the white dwarf mass-radius relationship with eclipsing binaries
• GW190814's secondary component with mass $(2.50-2.67)$ M${}_{\odot }$ as a super-fast pulsar
• Gravitational effects of condensate dark matter on compact stellar objects
• The impact of ultra-light axion self-interactions on the large scale structure of the Universe
• Equilibrium Structure and Radial Oscillations of Dark Matter Admixed Neutron Stars
• Formation and merging of Mass Gap Black Holes in Gravitational Wave Merger Events from Wide Hierarchical Quadruple Systems
• Formation of mass gap objects in highly asymmetric mergers
• Delayed Detonation Thermonuclear Supernovae With An Extended Dark Matter Component
• GW170817 and GW190814: tension on the maximum mass

Cited by in corpus (19)

• Dark matter admixed neutron star properties in the light of X-ray pulse profile observations
• Tidal Deformability of Dark Matter Admixed Neutron Stars
• Bosonic Dark Matter in Light of the NICER Precise Mass-Radius Measurements
• Possible Causes of False General Relativity Violations in Gravitational Wave Observations
• Dynamical evolution of dark matter admixed neutron stars
• Can fermion-boson stars reconcile multi-messenger observations of compact stars?
• Maximum mass of relativistic self-gravitating Bose-Einstein condensates with repulsive or attractive $|\phi {|}^4$ self-interaction
• Generating ultra compact boson stars with modified scalar potentials
• Radial Mode Stability of Two-Fluid Neutron Stars
• Implications of supermassive neutron stars for the form of the equation of state of hybrid stars
• A new criterion for the existence of dark matter in neutron stars
• Fuzzy Dark Matter in Relativistic Stars
• Dynamical evolution of fermion-boson stars with realistic equations of state
• Dark Matter-admixed Rotating White Dwarfs as Peculiar Compact Objects
• Accretion-induced Collapse of Dark Matter-admixed Rotating White Dwarfs: Dynamics and Gravitational-wave Signals
• Effects of Dark Matter on the Spontaneous Scalarization in Neutron Stars
• Observational bounds on Dark Matter Admixed Neutron Stars from Gravitational Wave Data
• Can dark-matter Q-balls grow to the mass gap masses?
• I-Love-Q Relations of Fermion-Boson Stars