Prompt Tidal Disruption of Stars as an Electromagnetic Signature of Supermassive Black Hole Coalescence

摘要: In the last decade, a series of breakthroughs in numerical relativity made it possible to simulate black hole binary coalescence on computer, fully dynamical spacetime (Pretorius 2005; Baker et al. 2006; Campanelli 2006). The most important astrophysical result these new techniques has been self-consistent calculation gravitational wave (GW) kicks: recoil imparted via momentum conservation newly merged hole. final stages inspiral and merger are accompanied by anisotropic GW emission, which numerically demonstrated produce typical kicks \(\sim\!\!10^{2-3}~{\rm km~s}^{-1}\). magnitude kick depends sensitively initial mass ratio spin vectors holes.