Resonance of Gravitational Axions-like Particles

Abstract

The motion of gravitational axion-like particles (ALP) around a Kerr black hole is analyzed, paying attention to resonance and distribution of spectral radiation. We first discuss the computation of $\sqrt{g}{\tilde{R}}_{\mu \nu \rho \rho \sigma }{R}^{\mu \nu \rho \sigma }$ and its implications with Pontryagin's theorem and a detailed analysis of Teukolsky's master equation is done. After carefully analyzing the Teukolsky master equation, we show that this system exhibits resonance when $\omega \gtrsim \mu$ where $\mu$ is the mass of the ALP. A skew-normal distribution can approximate the energy distribution, and we can calculate the mean lifetime of the resonance for black holes with masses between 100 to 1000 $M_{\odot }$. This range corresponds to a duration between $10^{-1}$s and $10^{41}$s, the observation range used in LIGO data.

23 pages

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