Model of compact star with ordinary and dark matter
| Autor: | Sunil D. Maharaj, L. L. Leeuw, P. Mafa Takisa |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Physics
Equation of state (cosmology) General relativity Dark matter Astronomy and Astrophysics Astrophysics::Cosmology and Extragalactic Astrophysics Astrophysics Compact star 01 natural sciences Galaxy Cosmology Neutron star Quark star Space and Planetary Science 0103 physical sciences 010303 astronomy & astrophysics Astrophysics::Galaxy Astrophysics |
| Zdroj: | Astrophysics and Space Science. 365 |
| ISSN: | 1572-946X 0004-640X |
| DOI: | 10.1007/s10509-020-03878-3 |
| Popis: | 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 $M_{\odot }$ and radius around 11.16 $\mbox{km}$ , 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 $M_{\odot }$ . |
| Databáze: | OpenAIRE |
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