Waves in Schwarzschild spacetimes: how strong can be imprints of the spacetime 
curvature

Karkowski, Janusz; Roskkowski, K.; Swierczynski, Z.; Malec, Edward

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Waves in Schwarzschild spacetimes: how strong can be imprints of the spacetime curvature

MPS-Authors

Malec, Edward
Geometric Analysis and Gravitation, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

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Citation

Karkowski, J., Roskkowski, K., Swierczynski, Z., & Malec, E. (2002). Waves in Schwarzschild spacetimes: how strong can be imprints of the spacetime curvature. Physical Review D, 67(6): 064024.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0013-54A3-F

Abstract

An emitted radiation can be reprocessed in curved spacetimes, due to the breakdown of the Huyghens principle. A maximization procedure for the energy diffusion allows one to obtain wave packets (gravitational and electromagnetic) that are particularly strongly backscattered. Examples are shown with the backscattered part exceeding by one order remnants of initial signals. A robust ringing can be observed, with amplitudes exceeding leftovers of the main radiation pulse. The analysis of the obtained results allows one to set demands on some parameters in the numerical description of a realistic process of the collapse of two black holes