Exact solution to perturbative conformal cosmology from recombination until the current era

Abstract

In a previous paper (P. D. Mannheim, Phys. Rev. D 102, 123535 (2020)) we studied cosmological perturbation theory in the cosmology associated with the fourth-order derivative conformal gravity theory, and provided an exact solution to the theory in the recombination era. In this paper we present an exact solution that holds all the way from recombination until the current era.

arXiv comment23 pages. arXiv admin note: substantial text overlap with arXiv:2009.06841

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• Critique of the use of geodesics in astrophysics and cosmology