Helvi Witek

TL;DR: In this article, the authors present a comprehensive study of the evolution of linearized massive scalar and vector fields in the vicinities of rotating black holes and show that these fields can become trapped in a potential barrier outside the horizon and transition to a bound state.

TL;DR: The first stage of the NRAR project focused on producing an initial set of numerical waveforms from binary black holes with moderate mass ratios and spins, as well as one non-spinning binary configuration which has a mass ratio of 10 as mentioned in this paper.

TL;DR: In this article, the authors used the Kodama-Ishibashi formalism and numerical code to study the head-on collision of two black holes and showed that the total radiated energy, when two black-holes collide from rest at infinity, is approximately (0.089 ± 0.006)% of the center of mass energy, slightly larger than the 0.055% obtained in the four-dimensional case.

TL;DR: In this paper, the authors extend numerical relativity to more general space-times than those investigated hitherto, by developing a framework to study the numerical evolution of D dimensional vacuum space times with an SO(D-2) isometry group for D≥5, or SO (D-3) for D ≥ 6.

TL;DR: In particular, in the limit that one hole is much smaller than the other, and the infall starts from an infinite initial separation, we recover the point-particle limit.