English

Conformal cosmology and the age of the universe

Astrophysics 2007-05-23 v1

Abstract

We show that within the cosmology associated with conformal gravity the age of the universe is given as 1/H01/H_0, to thus overcome the current cosmological age crisis. We show that while the parameter Ωmat=ρmat/ρC\Omega_{mat} = \rho_{mat} / \rho_C takes on all values between zero and infinity in conformal gravity, nonetheless it is of order one (but not identically equal to one) for half a Hubble time to thus naturally explain its current closeness to one without fine tuning. We show that the cosmological constant is naturally of order the energy density ρmat\rho_{mat} of ordinary matter again without fine tuning. We compare and contrast conformal cosmology with that of the standard Friedmann cosmology.

Keywords

Cite

@article{arxiv.astro-ph/9601071,
  title  = {Conformal cosmology and the age of the universe},
  author = {Philip D. Mannheim},
  journal= {arXiv preprint arXiv:astro-ph/9601071},
  year   = {2007}
}

Comments

LaTeX, 12 pages