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Astronomy · L5 · Large-Scale Structure: The Two-Point Correlation Function and the Cosmic Web · flowchart

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by @openstemUpdated Astronomy
Small primordial densityperturbations δ(x, t_i)Linear growth:δ(x,t) = D(t) δ(x,t_i)δ approachesorder unity?Still linear —described by P(k) aloneNonlinear gravitationalcollapse beginsTidal-tensor classification:voids, sheets, filaments, knotsObserved cosmic web(galaxy surveys, ξ(r), P(k))NoYes

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