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- W38797307 abstract "Using a general relativistic exact model for spherical structures in a cosmological background, we have calculated the test particle geodesics within the structure for different masses in order to obtain the velocity profile of stars or galaxies. Defining a Newtonian mass based on the classical dynamical relations, it turns out that the Misner-Sharp quasi-local mass is almost equal to the Newtonian one. This, however, is not the case for other general relativistic quasi-local mass definitions, which can be much smaller than the mass definition based on the classical dynamics. Therefore, based on the rotation curve, we are not in a position to relate a unique mass to a cosmological structure within general relativity even in cases of very weak gravity." @default.
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- W38797307 date "2014-01-01" @default.
- W38797307 modified "2023-09-23" @default.
- W38797307 title "Relativistic rotation curve for exact asymtotically FRW spherical structures and the definition of mass" @default.
- W38797307 hasPublicationYear "2014" @default.
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