Model of compact star with ordinary and dark matter

We study compact stars formed by dark and ordinary matter, with attributes of both neutron star matter and quark star matter. We assume an equation of state for dark matter which is consistent with the rotational curves of galaxies and for color-flavor-locked (CFL) distributions for ordinary matter....

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Bibliographic Details
Published in:Astrophysics and space science 2020-10, Vol.365 (10), Article 164
Main Authors: Mafa Takisa, P., Leeuw, L. L., Maharaj, S. D.
Format: Article
Language:English
Subjects:
Astrobiology
Astronomy
Astrophysics
Astrophysics and Astroparticles
Cosmology
Dark matter
Equations of state
Exact solutions
Galaxies
Neutron stars
Observations and Techniques
Original Article
Physics
Physics and Astronomy
Quark stars
Quarks
Relativity
Space Exploration and Astronautics
Space Sciences (including Extraterrestrial Physics
Stars
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Summary:We study compact stars formed by dark and ordinary matter, with attributes of both neutron star matter and quark star matter. We assume an equation of state for dark matter which is consistent with the rotational curves of galaxies and for color-flavor-locked (CFL) distributions for ordinary matter. This is done in the curved Krori-Barua spacetime geometry in general relativity. We find new exact solutions of dark matter admixed compact objects, with maximum mass 2.67  M ⊙ and radius around 11.16 km , with 52.40 % of dark matter content. By varying the dark matter ratio, we obtain the masses of dark compact stars with masses less than 2.67 M ⊙ .
ISSN:0004-640X
1572-946X
DOI:10.1007/s10509-020-03878-3