# Is there a possibility of frame dragging inside the event horizon?

Is there a possibility of frame dragging inside the event horizon? If frame dragging is related with gravity and space and as the black hole fills a space and produces a gravitational effect that could attract a mass not neccessarly orthogonally to the black hole center could the effect of frame dragging as a effect be possibly extended beyond the black hole event horizon or the part of the space occupied by the black hole should be threated as frame dragging free?

• Frame dragging is a remotely observed effect. Since the interior cannot be observed remotely, frame dragging there is physically meaningless. Sep 18 at 0:09

Yes, frame dragging is strong inside the event horizon. For the equatorial plane of a Kerr metric it is $$\Omega =\frac{r_s \alpha c}{r^3+\alpha^2 r + r_s\alpha^2}$$ where $$r_s=2GM/c^2$$ and $$\alpha = J/mc$$. Note that for $$r=0$$ (which corresponds to the ring singularity) it is $$\Omega= c/ \alpha > 0$$.