Fazlpour B, Banijamali A, Faraoni V. Geometry of static
w = - 1 / 5 perfect fluid spheres in general relativity.
THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS 2022;
82:364. [PMID:
35535284 PMCID:
PMC9038826 DOI:
10.1140/epjc/s10052-022-10349-2]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/26/2022] [Accepted: 04/18/2022] [Indexed: 06/14/2023]
Abstract
We discuss the physical features of two recent classes of analytical solutions of the Einstein equations sourced by an exotic perfect fluid with equation of state P = - ρ / 5 . These geometries depend on up to four parameters and are static and spherically symmetric. They describe compact spaces with naked central singularities.
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