Abstract
view Abstract Citations (23) References (23) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Finite Perturbations on Friedmann-Robertson-Walker Models Ibanez, J. ; Verdaguer, E. Abstract By dimensional reduction of solutions of Einstein's equations in five-dimensional vacuum, two metrics are derived which can be interpreted as finite cylindrical perturbations of the solitonic type on a radiative Friedmann-Robertson-Walker (FRW) cosmological background. A linear perturbative analysis is performed and is compared with the exact nonlinear results. The metrics are transformed to perfect fluid solutions representing finite soliton perturbations on a FRW background with stiff matter. One metric contains density modes, and the other includes the coupling between density and radiative modes. Publication: The Astrophysical Journal Pub Date: July 1986 DOI: 10.1086/164353 Bibcode: 1986ApJ...306..401I Keywords: Astronomical Models; Cosmology; Perturbation Theory; Relativity; Approximation; Density Distribution; Eigenvalues; Space-Time Functions; Temporal Distribution; Astrophysics; COSMOLOGY; RELATIVITY full text sources ADS |
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