![]() |
Figure 14: This figure shows the pretracking surfaces at various times in a spiraling binary black
hole collision, projected into the black holes’ orbital plane. (The apparent slow drift of the black holes
in a clockwise direction is an artifact of the corotating coordinate system; the black holes are actually
orbiting much faster, in a counterclockwise direction.) Notice how, even well before the common
apparent horizon first appears ( |