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- W3217733790 abstract "We study the impact of asymmetric fermionic dark matter on neutron star properties, including tidal deformability, mass, radius, etc. We present the conditions at which dark matter particles tend to form a compact structure in a core of the star or create an extended halo around it. We show that a compact core of dark matter leads to a decrease of the total gravitational mass and tidal deformability compared to a pure baryonic star, while the presence of a dark matter halo increases those observable quantities. By imposing the existing astrophysical and gravitational wave constraints set by LIGO/Virgo Collaboration together with the recent results on the spatial distribution of dark matter in the Milky Way we determine a new upper limit on the mass and fraction of dark matter particles inside compact stars. Furthermore, we show that the formation of an extended halo around a NS is incompatible with the GW170817 tidal deformability constraint." @default.
- W3217733790 created "2021-12-06" @default.
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- W3217733790 date "2022-03-07" @default.
- W3217733790 modified "2023-09-25" @default.
- W3217733790 title "Constraints on the fermionic dark matter from observations of neutron stars" @default.
- W3217733790 doi "https://doi.org/10.22323/1.380.0313" @default.
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