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arXiv · hep-ph/9705331

Ruling out a critical density baryonic universe

Michael Birkel·Subir Sarkar
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Abstract

It has been suggested by Bartlett and Hall that our universe may have the critical density in baryons by virtue of specific interactions with a `shadow' world. We show that this possibility is severely constrained by primordial nucleosynthesis, stellar evolution and the thermalization of the cosmic microwave background. In particular, recent observations of small angular-scale anisotropy in the cosmic microwave background conclusively rule out all such baryon-dominated cosmologies.

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Michael Birkel, Subir Sarkar. 1997-05-15. Ruling out a critical density baryonic universe. https://doi.org/10.1016/s0370-2693(97)00833-2

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