Tidal disruption radius
= Tidal disruption radius
{title2=$r_t$}
For a star of mass $M_*$ and radius $R_*$ near a black hole of mass $M_{\rm BH}$, the Newtonian tidal disruption radius is $r_t\simeq R_*(2M_{\rm BH}/M_*)^{1/3}$ under a peak-to-center tidal-acceleration convention.