Gravitational Radiation from a Particle with Orbital Angular Momentum Plunging into a Kerr Black Hole : Astrophysics and Relativity

概要

論文の詳細を見る
Using the Sasaki-Nakamura equation, we have computed the energy, linear and angular momentum of the gravitational radiation induced by a particle of mass μ and angular momentum μL_z plunging in an equatorial plane into a Kerr black hole of mass M(≫μ) and angular momentum Ma. It is found that the total energy ΔE≈(μ/M)μc^2 is emitted by the particle with sufficient large orbital angular momentum. For the same value of ∣L_z∣, a corotating particle emits more energy than a counter-rotating one. We have also calculated the energy from a rotating ring plunging into a Kerr black hole. In this case, we have found that a corotating ring emits less gravitational energy than a counter-rotating one for the same ∣L_z∣. The maximum of the linear momentum is 6×10^<-2>(μ/M)μc, which suggests the recoil velocity of the coalesced black hole is 160 km/s for μ=0.1 M.
理論物理学刊行会の論文
1984-01-25