An analytical solution in the complex plane for the luminosity distance in flat cosmology
arXiv:1609.04612 · doi:10.4236/jhepgc.2016.24050
Abstract
We present an analytical solution for the luminosity distance in spatially flat cosmology with pressureless matter and the cosmological constant. The complex analytical solution is made of a real part and a negligible imaginary part. The real part of the luminosity distance allows finding the two parameters and $\om$. A simple expression for the distance modulus for SNs of type Ia is reported in the framework of the minimax approximation.
6 pages, 2 figures
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