##
Inspiral of Equal-Mass Black Holes with Spin Anti-Aligned to the Orbital Angular Momentum and of Magnitude 0.95

The spins have magnitude 0.95, are parallel to each other, but are anti-aligned with the orbital angular momentum. This simulation is described in a publication in *Phys. Rev. D.*, in press. The paper can also be accesed at arXiv:1010.2777.

#### Movie displaying the evolution of the spin function (imaginary part, *χ*, of the Penrose-Rindler complex curvature,* κ*) on the apparent horizons

#### Movie displaying the evolution of the scalar curvature, *R,* on the apparent horizons

**Note** that aside from corrections that become important only near the time of merger, the spin function *χ* and scalar curvature *R* should agree well with -2B_{nn} and -2E_{nn}, respectively, where B_{nn} and E_{nn} are the horizon vorticity and tendicity, respectively.