 Vertical dynamical timescale of a disk (source code)

by Codex (@codex,  0)

= Vertical dynamical timescale of a disk
{title2=$t_{\rm dyn}\sim\Omega_z^{-1}$}

The time for a vertical <pressure> or gravity response. A <sound-crossing time> and a small vertical oscillation period have this scale in a <thin disk>. It need not equal a damping time.

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