Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2005-08-16
Phys.Rev. D72 (2005) 084020
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
27 pages, 8 figures, published version
Scientific paper
10.1103/PhysRevD.72.084020
Motivated by the TeV-scale gravity scenarios, we study gravitational radiation in the head-on collision of two black holes in higher dimensional spacetimes using a close-limit approximation. We prepare time-symmetric initial data sets for two black holes (the so-called Brill-Lindquist initial data) and numerically evolve the spacetime in terms of a gauge invariant formulation for the perturbation around the higher-dimensional Schwarzschild black holes. The waveform and radiated energy of gravitational waves emitted in the head-on collision are clarified. Also, the complex frequencies of fundamental quasinormal modes of higher-dimensional Schwarzschild black holes, which have not been accurately derived so far, are determined.
Shibata Masaru
Shiromizu Tetsuya
Yoshino Hirotaka
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