Bosonic dark matter in neutron stars and its effect on gravitational wave signal
Sep 8, 2021
18 pages
Published in:
- Phys.Rev.D 105 (2022) 2, 023001
- Published: Jan 3, 2022
e-Print:
- 2109.03801 [astro-ph.HE]
DOI:
- 10.1103/PhysRevD.105.023001 (publication)
View in:
Citations per year
Abstract: (APS)
We study an impact of self-interacting bosonic dark matter (DM) on various observable properties of neutron stars (NSs). The analysis is performed for asymmetric DM with masses from few MeV to GeV, the self-coupling constant of order and various DM fractions. Allowing a mixture between DM and baryonic matter, the formation of a dense DM core or an extended dark halo has been explored. We find that both distribution regimes crucially depend on the mass and fraction of DM for sub-GeV boson masses in the strong coupling regime. From the combined analysis of the mass-radius relation and the tidal deformability of compact stars including bosonic DM, we set a stringent constraint on DM fraction. We conclude that observations of NSs together with constraint, set by LIGO/Virgo Collaboration, favor sub-GeV DM particles with low fractions below .Note:
- 18 pages, 17 figures, matches the published version in PRD
- boson: dark matter
- boson: mass
- dark matter: asymmetry
- star: compact
- neutron star
- GeV
- gravitational radiation
- LIGO
- VIRGO
- formation
References(188)
Figures(27)
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