Frame dragging and super-energy
arXiv:0707.0867 · doi:10.1103/PhysRevD.76.044012
Abstract
We show that the vorticity appearing in stationary vacuum spacetimes is always related to the existence of a flow of super-energy on the plane orthogonal to the vorticity vector. This result, toghether with the previously established link between vorticity and super--energy in radiative (Bondi-Sachs) spacetimes strength further the case for this latter quantity as the cause of frame dragging.
12 pages Latex. To appear in Phys.Rev. D. Typos corrected