# THE COSMOLOGICAL SPACETIME

@article{Melia2009THECS, title={THE COSMOLOGICAL SPACETIME}, author={F. Melia and M. Abdelqader}, journal={International Journal of Modern Physics D}, year={2009}, volume={18}, pages={1889-1901} }

We present here the transformations required to recast the Robertson–Walker metric and Friedmann–Robertson–Walker equations in terms of observer-dependent coordinates for several commonly assumed cosmologies. The overriding motivation is the derivation of explicit expressions for the radius Rh of our cosmic horizon in terms of measurable quantities for each of the cases we consider. We show that the cosmological time dt diverges for any finite interval ds associated with a process at R → Rh… Expand

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