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An Exact CMB Photon Radiation Density of the Universe Derived from Rh = ct Cosmology

10 January 2025, Version 1
Working Paper
This content is an early or alternative research output and has not been peer-reviewed by Cambridge University Press at the time of posting.

Abstract

We will demonstrate that the photon energy density parameter Ωγ of the universe can be derived exactly in Rh = ct cosmology. We find that it must be Ωγ=1/5760π ≈5.526 × 10−5 which lies well within the 95% confidence interval for the photon radiation density reported by the Particle Data Group (PDG). Our exact result indicates that there is no uncertainty in the radiation density within at least some sub-classes of Rh = ct cosmology and that such model fit observations.

Keywords

Photon energy density parameter
critical density
CMB radiation density

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Version History

Jan 10, 2025 Version 1

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The content is available under CC BY NC ND 4.0 [opens in a new tab]

DOI

10.33774/coe-2025-jfg4t
D O I: 10.33774/coe-2025-jfg4t [opens in a new tab]

Author’s competing interest statement

The author(s) have declared they have no conflict of interest with regard to this content

Ethics

The author(s) have declared ethics committee/IRB approval is not relevant to this content

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