Expressions for linearized perturbations in ideal-fluid cosmological models
- 15 October 1988
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review D
- Vol. 38 (8) , 2399-2414
- https://doi.org/10.1103/physrevd.38.2399
Abstract
We present closed-form solutions of the relativistic linear perturbation equations (in synchronous gauge) that govern the evolution of inhomogeneities in homogeneous, spatially flat, ideal-fluid, cosmological models. These expressions, which are valid for irregularities on any scale, allow one to analytically interpolate between the known approximate solutions which are valid at early times and at late times.Keywords
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