Adiabatic pressure support during gravitational collapse
= Adiabatic pressure support during gravitational collapse
{title2=$pL^3/|W_g|\propto L^{4-3\gamma}$}
With fixed mass and homologous scale $L$, adiabatic <pressure> obeys $p\propto L^{-3\gamma}$. Its support relative to gravitational energy scales as $pL^3/|W_g|\propto L^{4-3\gamma}$. <Pressure> becomes relatively stronger on contraction for $\gamma>4/3$, weaker for $\gamma<4/3$ and has the same scaling at $\gamma=4/3$.