F⃗ = −\frac{GMm}{r^{2}} r̂

ρ(r) = ρ_{0}(1 + \frac{r^{2}}{b^{2}} )^{−5/2}

F⃗ = −\frac{G M_{int} m}{r^{2}} r̂

∇^{2}Φ = 4πGρ

\frac{100, 000 parsecs}{1000} = 100 parsecs