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arXiv · 1510.08298

Resonant frequencies of the hydrodynamic vortex

H. S. Vieira
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Abstract

We study the sound perturbation of the hydrodynamic vortex geometry and present an exact expression for the resonant frequencies (quasispectrum) of this geometry. Exact solution for the radial part of the covariant Klein-Gordon equation in this spacetime is obtained, and is given in terms of the double confluent Heun functions. We found that the resonant frequencies are complex number.

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H. S. Vieira. 2016-09-25. Resonant frequencies of the hydrodynamic vortex. https://doi.org/10.1142/s0218271817500353

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