Disks in Expanding FRW Universes
نویسنده
چکیده
We construct exact solutions to Einstein equations which represent relativistic disks imbedded in an expanding FRW Universe. It is shown that the expansion influences the kinematical characteristics of the disks such as rotational curves, surface mass density, etc. The effects of the expansion are exemplified with non-static generalizations of Kuzmin-Curzon and Schwarzschild disks. Subject headings: celestial mechanics, stellar dynamics — cosmology: large scale structure of the Universe — galaxies: kinematics and dynamics — ISM: kinematics and dynamics — relativity
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