Friedmann-Robertson-Walker models do not require zero active mass [CEA]

http://arxiv.org/abs/1601.07890


The $R_H = ct$ cosmological model has received considerable attention in recent years owing to claims that it is favoured over the standard $\Lambda$CDM model by most observational data. A key feature of the $R_H = ct$ model is that the zero active mass condition $\rho + 3p = 0$ holds at all epochs. Most recently, Melia has claimed that this condition is a requirement of the symmetries of the Friedmann-Robertson-Walker spacetime. We demonstrate that this claim is false and results from a flaw in the logic of Melia’s argument.

Read this paper on arXiv…

D. Kim, A. Lasenby and M. Hobson
Fri, 29 Jan 16
29/52

Comments: 3 pages, submitted to MNRAS