A class of exact spherically symmetrical retarded self-similar solutions linearized around the Friedmann background of the Einstein equations is derived and examined for an ideal liquid with an arbitrary barotropy index.
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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 1, pp. 15–22, January, 2009.
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Ignat’ev, Y.G., El’makhi, N. A dynamic model of spherical perturbations in the Friedmann universe. III. Self-similar solutions. Russ Phys J 52, 15–24 (2009). https://doi.org/10.1007/s11182-009-9197-4
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DOI: https://doi.org/10.1007/s11182-009-9197-4