Salpeter time (source code)

= Salpeter time
{c}
{title2=$t_{\rm Sal}$}
{wiki}

The Salpeter time is the e-folding time for Eddington-limited black-hole growth. If $t_E=\sigma_Tc/(4\pi Gm_p)$, then $t_{\rm Sal}=\eta t_E/[(1-\eta)f_{\rm Edd}]$.