Gravity Waves from Extreme-Mass-Ratio Plunges into Kerr Black Holes

Abstract

Massive objects orbiting a near-extreme Kerr black hole quickly plunge into the horizon after passing the innermost stable circular orbit. The plunge trajectory is shown to be related by a conformal map to a circular orbit. Conformal symmetry of the near-horizon region is then used to compute the gravitational radiation produced during the plunge phase.

arXiv comment20 pages, 1 figure

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