Cosmological parameter · Ωm

Matter Density (Ωm)

The fraction of the universe's total energy density that is in matter — dark matter plus ordinary baryonic matter — today. Together with the dark-energy density it sets the geometry and the fate of the universe; it is measured most precisely from the cosmic microwave background.

Dark Matter
The Cosmological Constant (Λ)
Planck

Knowledge connections

Associated withDark Matter
Associated withThe Cosmological Constant (Λ)
Associated withPlanck

Sources

Facts on this topic will be cited from these primary and reference sources.

Planck CollaborationESA Planck mission / Planck Collaboration
Cosmic microwave background maps and the cosmological parameters of the ΛCDM model.

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Matter Density (Ωm)

Methods, objects & facilities

Knowledge connections

Sources

Matter Density (Ωm)

Methods, objects & facilities

Knowledge connections

Sources