Vainshtein radius

Inside the Vainshtein radius


 * $$r_V = l_\text{P}\left( \frac{m_\text{P}^3M}{m^4_G} \right)^\frac{1}{5}$$
 * with Planck length $$l_\text{P}$$ and Planck mass $$m_\text{P}$$

the gravitational field around a body of mass $$M$$ is the same in a theory where the graviton mass $$m_G$$ is zero and where it's very small because the helicity 0 degree of freedom becomes effective on distance scales $$r \gg r_V$$.