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Astronomy · L4 · From density fluctuations to observed CMB anisotropies and structure

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How tiny density fluctuations in the early plasma become observable CMB temperature anisotropies and, later, cosmic large-scale structure.

by @openstemUpdated Astronomy
Tiny density fluctuationsin early plasmaOverdense regionsslightly hotterUnderdense regionsslightly coolerCMB temperatureanisotropies (~1 part in 10⁵)Cosmological parameters:age, geometry, Ω_matter, Ω_ΛGalaxies, clusters,cosmic webMeasured by COBE, WMAP, PlanckGravitational collapse over billions of years

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