2008/10/27 by Masaru Shibata, H. Okawa, Hirotada Okawa +1 · 1 citation
Mathematics · Physics and Astronomy · #Angular momentum #Black Holes and Theoretical Physics #Black hole (networking) #Classical mechanics #Collision #Cosmology and Gravitation Theories #Energy (signal processing) #Extrapolation #Infinity #Mathematical analysis #Mathematical physics #Mathematics #Physics #Pulsars and Gravitational Waves Research #Quantum mechanics #gr-qc #hep-th
paper · pdf · doi:10.1103/physrevd.78.101501
published as Phys.Rev.D78:101501,2008 · 5 pages, Phys. Rev. D in press
arxiv created 2008/10/27 · openalex publication_date 2008/11/03 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We study nonaxisymmetric collision of two black holes (BHs) with a high velocity v=|dxi/dx0|=\phantom\rule0ex0ex0.6c--0.9c at infinity, where x^\ensuremathμ denotes four-dimensional coordinates. We prepare two boosted BHs for the initial condition which is different from that computed by a simple moving-puncture approach. By extrapolation of the numerical results, we find that the impact parameter has to be smaller than \ensuremath≈2.5GM0/c2 for formation of a BH in the collision for v\ensuremath→c, where M0c2 is the initial total Arnowitt-Deser-Misner energy of the system. For the critical value of the impact parameter, 20%--30% of mass energy and 60%--70% of angular momentum are dissipated by gravitational radiation for v=0.6c--0.9c.