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Rotating dark matter admixed neutron stars

Nov 13, 2023

16 pages

Published in:

Phys.Rev.D 108 (2023) 10, 103016

Published: Nov 13, 2023

e-Print:

2311.07714 [gr-qc]

DOI:

10.1103/PhysRevD.108.103016 (publication)

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Abstract: (APS)

We study rotating compact stars that are mixtures of the ordinary nuclear matter in a neutron star and fermionic dark matter. After deriving equations describing a slowly rotating system made up of an arbitrary number of perfect fluids, we specialize to the two-fluid case, where the first fluid describes ordinary matter and the second fluid describes dark matter. Electromagnetic observations of the moment of inertia and angular momentum directly probe ordinary matter and not dark matter. Upon taking this into account, we show that the

I

-Love-

Q

relations for dark matter admixed neutrons stars can deviate significantly from the standard single-fluid relationships.

Note:

16 pages, 3 figures

fermion: dark matter
star: compact
neutron star
fluid
rotation
electromagnetic
nuclear matter
angular momentum

References(73)

Figures(3)

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