Slowly-rotating cosmological perfect fluids

Details Slowly-rotating cosmological perfect fluids Slowly-rotating cosmological perfect fluids

Oct 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987ap%26ss.137...85t&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 137, no. 1, Oct. 1987, p. 85-91.

Astronomy and Astrophysics

Astrophysics

10

Angular Velocity, Astronomical Models, Cosmology, Ideal Fluids, Rotating Fluids, Galactic Evolution, Inertia, Time Dependence

Scientific paper

The Einstein field equations for a perfect fluid distribution representing slowly-rotating fluid spheres are investigated. By imposing restrictions on the matter rotation ω(r,t) which is related to the dragging of inertial frames, and a uniform rotation which is a function of time, the general solutions for Ω(r,t) are obtained for all cosmological models. In the case of closed models the solutions for Ω(r,t) may represent realistic astrophysical situations only when the radial distance is greater than -1 and less than +1.

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