Theory 92/Cosmic/Cosmic web
Filaments Are Velocity Against Gravity
The claim
The width of cosmic web filaments is set by the ratio of dark matter velocity dispersion to gravitational pull, so warmer dark matter produces broader filaments.
01Mechanism
Filaments are where gravity competes with velocity; the ratio sets the scale at which structure is washed out.
02Prediction
Filament width should track the ratio.
03Refutation
Width tracking density alone would remove velocity.