Status of Cosmology

Joel R. Primack

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arXiv · astro-ph/9912089

Status of Cosmology

Joel R. Primack

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Abstract

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 $Ω_m$, the baryonic matter density $Ω_b$, the neutrino density $Ω_ν$, and the cosmological constant $Ω_Λ$. The evidence currently favors $t_0 \approx 13$ Gyr, $h \approx 0.65$, $Ω_m \approx 0.3$, $Ω_Λ\approx 0.7$.

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Joel R. Primack. 1999-12-06. Status of Cosmology. https://arxiv.org/abs/astro-ph/9912089

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