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- W4210439180 abstract "Abstract Metrics of dynamical point particles embedded in spatially flat FLRW space-times are derived as isotropic solutions of the Einstein equations with the energy–momentum tensor of a perfect fluid. These particles are produced by central singularities of the fluid density but without changing the pressure of the asymptotic FLRW space-times. It is shown that each particle gets a dynamical photon sphere before a critical instant when two dynamical apparent horizons arise just on the photon sphere evolving then as C-curves. The angular radius of the shadow associated to the photon sphere is derived and compared with the known results." @default.
- W4210439180 created "2022-02-08" @default.
- W4210439180 creator A5063265433 @default.
- W4210439180 date "2022-01-01" @default.
- W4210439180 modified "2023-10-07" @default.
- W4210439180 title "Dynamical particles in spatially flat FLRW space-times" @default.
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- W4210439180 doi "https://doi.org/10.1140/epjc/s10052-022-10023-7" @default.
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