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Coincidence of Universe age in $Λ$CDM and Milne cosmologies

M. Kutschera·M. Dyrda
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Abstract

The age of the Universe in the $Λ$CDM cosmology with $Ω_{matter}=0.26$ and $Ω_Λ=0.74$ is the same as in the Milne cosmology which correspods to an almost empty universe. In both cases it is a reciprocal Hubble constant, $1/H_0$, that for now preferred value $H_0=71 km/s/Mpc$ is 13.7 billion years. The most curious coincidence is that at the present time, in the $Λ$CDM model the decelerated expansion is exactly compensated by the accelerated expansion, as if the Universe coast for 13.7 billion years.

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M. Kutschera, M. Dyrda. 2006-11-09. Coincidence of Universe age in $Λ$CDM and Milne cosmologies. https://arxiv.org/abs/astro-ph/0605175

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