Showing papers by "Yosef Zlochower published in 2001"
TL;DR: In this article, a characteristic algorithm for computing the perturbation of a Schwarzschild spacetime by means of solving the Teukolsky equation is presented, and the algorithm is implemented as a characteristic evolution code and applied to compute the advanced solution to a black hole collision in the close approximation.
Abstract: We present a characteristic algorithm for computing the perturbation of a Schwarzschild spacetime by means of solving the Teukolsky equation. We implement the algorithm as a characteristic evolution code and apply it to compute the advanced solution to a black hole collision in the close approximation. The code successfully tracks the initial burst and quasinormal decay of a black hole perturbation through 10 orders of magnitude and tracks the final power law decay through an additional 6 orders of magnitude. Determination of the advanced solution, in which ingoing radiation is absorbed by the black hole but no outgoing radiation is emitted, is the first stage of a two stage approach to determining the retarded solution, which provides the close approximation waveform with the physically appropriate boundary condition of no ingoing radiation.
18 citations