Dataset

Cosmological Parameters Dataset

The numbers that describe the universe as a whole — the matter density (Ωm), the dark-energy density (ΩΛ), the amplitude of fluctuations (σ8), and the scalar spectral index (ns).

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Version: 1.0.0
Entities: 4
Last generated: 2026-06-29
License: CC BY-SA 4.0
Checksum: — (published at release)

Sample (4 of 4)

Name	Type	ID
Amplitude of Fluctuations (σ8)	Cosmological parameter	cosmological_parameter:sigma-8
Dark Energy Density (ΩΛ)	Cosmological parameter	cosmological_parameter:dark-energy-density
Matter Density (Ωm)	Cosmological parameter	cosmological_parameter:matter-density
Scalar Spectral Index (ns)	Cosmological parameter	cosmological_parameter:scalar-spectral-index

Source references

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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