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- W1986943944 abstract "We obtain a new expression of the Friedmann–Robertson–Walker metric, which is an analogue of a static chart of the de Sitter space–time. The reduced metric contains two functions, M(T, R) and Ψ(T, R), which are interpreted as, respectively, the mass function and the gravitational potential. We find that, near the coordinate origin, the reduced metric can be approximated in a static form and that the approximated metric function, Ψ(R) satisfies the Poisson equation. Moreover, when the model parameters of the Friedmann–Robertson–Walker metric are suitably chosen, the approximated metric coincides with exact solutions of the Einstein equation with the perfect fluid matter. We then solve the radial geodesics on the approximated space–time to obtain the distance-redshift relation of geodesic sources observed by the comoving observer at the origin. We find that the redshift is expressed in terms of a peculiar velocity of the source and the metric function, Ψ(R), evaluated at the source position, and one may think that this is a new interpretation of Gentry's new redshift interpretation." @default.
- W1986943944 created "2016-06-24" @default.
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- W1986943944 date "1999-04-20" @default.
- W1986943944 modified "2023-09-26" @default.
- W1986943944 title "A RELATIVISTIC DESCRIPTION OF GENTRY'S NEW REDSHIFT INTERPRETATION" @default.
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- W1986943944 doi "https://doi.org/10.1142/s0217732399000821" @default.
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