English

Status of Cosmology

Astrophysics 2007-05-23 v1

Abstract

The cosmological parameters that I will emphasize are the Hubble parameter H0100hH_0 \equiv 100 h km s1^{-1} Mpc1^{-1}, the age of the universe t0t_0, the average matter density Ωm\Omega_m, the baryonic matter density Ωb\Omega_b, the neutrino density Ων\Omega_\nu, and the cosmological constant ΩΛ\Omega_\Lambda. The evidence currently favors t013t_0 \approx 13 Gyr, h0.65h \approx 0.65, Ωm0.3\Omega_m \approx 0.3, ΩΛ0.7\Omega_\Lambda \approx 0.7.

Keywords

Cite

@article{arxiv.astro-ph/9912089,
  title  = {Status of Cosmology},
  author = {Joel R. Primack},
  journal= {arXiv preprint arXiv:astro-ph/9912089},
  year   = {2007}
}

Comments

14 pages, uses paspconf, to appear in "Cosmic Flows: Towards an Understanding of Large-Scale Structure," eds. S. Courteau, M.A. Strauss, and J.A. Willick (ASP Conference Series)

R2 v1 2026-07-22T09:53:35.903Z