Relativity and Cosmology


Does the Polytropic Gas Yield Better Results in a 5D Framework?

Authors: Halil Ibrahim Ay, Oktay Aydogdu, Musafa Salti

In this work, we study the polytropic gas (PG) cosmology in a d-dimensional (dD) form of the flat Friedmann-Robertson-Walker (FRW) framework. In this context, we focus on the evolution of the corresponding energy density as a first step. Next, we use the most recent data from the Type Ia Supernova (SN Ia), observational values of the cosmic Hubble parameter (OHD) and the updated Planck-results to place constraints on the free parameters defined in the model. We show that the 5D form of the scenario is more compatible with the recent observations. Moreover, according to the best values of the auxiliary parameters, we compte age of the cosmos theoretically.

Comments: 21 Pages.

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Submission history

[v1] 2019-10-17 04:28:13

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