# Could the GW190814 Secondary Component Be a Bosonic Dark Matter Admixed Compact Star?

@article{Lee2021CouldTG,
title={Could the GW190814 Secondary Component Be a Bosonic Dark Matter Admixed Compact Star?},
author={Billy K. K. Lee and Ming-chung Chu and Lap Ming Lin},
journal={The Astrophysical Journal},
year={2021},
volume={922}
}
• Published 11 October 2021
• Physics
• The Astrophysical Journal
We investigate whether the recently observed 2.6 M ⊙ compact object in the gravitational wave event GW190814 can be a bosonic dark matter (DM) admixed compact star. By considering the three constraints of mass, radius, and the stability of such an object, we find that if the DM 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 ⊙ object can…
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## References

SHOWING 1-10 OF 37 REFERENCES
Probing the existence of ultralight bosons with a single gravitational-wave measurement
• Physics
Nature Astronomy
• 2019
Light bosons, proposed as a possible solution to various problems in fundamental physics and cosmology1–3, include a broad class of candidates for physics beyond the standard model, such as dilatons
GW190814: Gravitational Waves from the Coalescence of a 23 Solar Mass Black Hole with a 2.6 Solar Mass Compact Object
We report the observation of a compact binary coalescence involving a 22.2–24.3 M ⊙ black hole and a compact object with a mass of 2.50–2.67 M ⊙ (all measurements quoted at the 90% credible level).
Accretion-induced Collapse of Dark Matter Admixed White Dwarfs. I. Formation of Low-mass Neutron Stars
• Physics
The Astrophysical Journal
• 2019
Recently observed pulsars with masses $\sim 1.1 ~M_{\odot}$ challenge the conventional neutron star (NS) formation path by core-collapse supernova (CCSN). Using spherically symmetric hydrodynamics
Effects of mirror dark matter on neutron stars
• Physics
• 2009
Abstract If dark matter is made of mirror baryons, they presumably are present in all gravitationally bound structures. Here, we investigate some effects of mirror dark matter on neutron stars and
Axions as dark matter particles
• Physics
• 2009
We overview the current status of axions as dark matter. The axion is the pseudo-Nambu–Goldstone boson which arises from the Peccei–Quinn solution to the strong CP problem. Additionally, cold axion
The dark matter of gravitational lensing
• Physics
• 2010
We review progress in understanding dark matter by astrophysics, and particularly via the effect of gravitational lensing. Evidences from many different directions now all imply that five sixths of
Constraining the Maximum Mass of Neutron Stars from Multi-messenger Observations of GW170817
• Physics
• 2017
We combine electromagnetic (EM) and gravitational wave (GW) information on the binary neutron star (NS) merger GW170817 in order to constrain the radii $R_{\rm ns}$ and maximum mass $M_{\rm max}$ of
Axion superradiance in rotating neutron stars
• Physics
Journal of Cosmology and Astroparticle Physics
• 2019
It is a well-known fact that compact gravitating objects admit bound state configurations for massive bosonic fields. In this work we describe a new class of superradiant instabilities of axion bound
Neutron star cooling via axion emission by nucleon–nucleon axion bremsstrahlung
• Physics
Pramana
• 2019
Neutron stars generally cool off by the emission of $$\gamma$$γ-rays and neutrinos. But axions can also be produced inside a neutron star by the process of nucleon–nucleon axion bremsstrahlung. The
Have neutron stars a dark matter core
• Physics
• 2011
Abstract Recent observational results for the masses and radii of some neutron stars are in contrast with typical observations and theoretical predictions for “normal” neutron stars. We propose that