Astronomical School’s Report, 2014, Volume 10, Issue 1, Pages 62–65

https://doi.org/10.18372/2411-6602.10.1062
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UDC 530.12

Energy density and pressure of the Stefani's universe with radiation and negative spatial curvature

Gradysky A.V., Kopteva O.M.

Dnipropetrovsk National University, Ukraine

Abstract

Observational data of last decades show the accelerated expansion of our Universe. This fact can be explained if we consider Einstein's equations with uniform energy density and non-uniform pressure. In this paper we study one of these solutions for shiftless perfect fluid.

Keywords: accelerated expansion of the Universe; Einstein's equations; energy density; pressure

References

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  2. Jakacka I., Stelmach J. (2001). Non-homogeneity-driven Universe acceleration. Class. Quant. Grav., 18, 2643–2658. https://doi.org/10.1088/0264-9381/18/14/303
  3. Krasiński A. Inhomogeneous Cosmological Models. Cambridge: Cambridge University Press, 1997. https://doi.org/10.1017/cbo9780511721694

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