Matter-Radiation Equality ·
The 50,000-Year Flip
un
seel
.com · z_eq ≈ 3400 · structure formation begins
Epoch
—
Redshift
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Phase
—
Radiation ρ_r ∝ a⁻⁴
Matter ρ_m ∝ a⁻³
Equality z_eq ≈ 3400
Growing structure
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.com · Matter-Radiation Equality