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