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A New Solution for the Friedmann Equations
Department of Civil Engineering, University of Toledo, Toledo, USA
- 1 Department of Civil Engineering, University of Toledo, Toledo, USA
International Journal of Astronomy and Astrophysics·Volume 06 (2016)·Pages 122–134·Published 7 March 2016·DOI10.4236/ijaa.2016.61010
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Abstract
Assuming a flat universe expanding under a constant pressure and combining the first and the second Friedmann equations, a new equation, describing the evolution of the scale factor, is derived. The equation is a general kinematic equation. It includes all the ingredients composing the universe. An exact closed form solution for this equation is presented. The solution shows remarkable agreement with available observational data for redshifts from a low of z = 0.0152 to as high as z = 8.68. As such, this solution provides an alternative way of describing the expansion of space without involving the controversial dark energy.
KeywordsCosmological ConstantDistances and RedshiftsExpanding UniverseFriedmann Equations
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