Numerical relativity for D dimensional space-times: Head-on collisions of black...

• Autor(es): Witek, Helvi ; Zilhão, Miguel ; Gualtieri, Leonardo ; Cardoso, Vitor ; Herdeiro, Carlos ; Nerozzi, Andrea ; Sperhake, Ulrich
• Data: 2010
• Identificador Persistente: http://hdl.handle.net/10773/7085
• Origem: RIA - Repositório Institucional da Universidade de Aveiro
• Tipo de Documento: Artigo
• Idioma: Inglês

Descrição

Higher dimensional black holes play an exciting role in fundamental physics, such as high energy physics. In this paper, we use the formalism and numerical code reported in [1] to study the head-on collision of two black holes. For this purpose we provide a detailed treatment of gravitational wave extraction in generic D dimensional space-times, which uses the Kodama-Ishibashi formalism. For the first time, we present the results of numerical simulations of the head-on collision in five space-time dimensions, together with the relevant physical quantities. We show 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, and that the ringdown signal at late time is in very good agreement with perturbative calculations.