Astronomy and Astrophysics – Astrophysics
Scientific paper
1999-12-06
Astronomy and Astrophysics
Astrophysics
14 pages, uses paspconf, to appear in "Cosmic Flows: Towards an Understanding of Large-Scale Structure," eds. S. Courteau, M.A
Scientific paper
The cosmological parameters that I will emphasize are the Hubble parameter $H_0 \equiv 100 h$ km s$^{-1}$ Mpc$^{-1}$, the age of the universe $t_0$, the average matter density $\Omega_m$, the baryonic matter density $\Omega_b$, the neutrino density $\Omega_\nu$, and the cosmological constant $\Omega_\Lambda$. The evidence currently favors $t_0 \approx 13$ Gyr, $h \approx 0.65$, $\Omega_m \approx 0.3$, $\Omega_\Lambda \approx 0.7$.
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