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Quasinormal modes and stability of the rotating acoustic black hole: numerical analysis

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arxiv gr-qc/0410107 v2 pith:75SXK57O submitted 2004-10-21 gr-qc astro-phhep-phhep-thphysics.flu-dyn

Quasinormal modes and stability of the rotating acoustic black hole: numerical analysis

classification gr-qc astro-phhep-phhep-thphysics.flu-dyn
keywords blackholeacousticquasinormalrotatinganalysisbathtubdimensional
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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The study of the quasinormal modes (QNMs) of the 2+1 dimensional rotating draining bathtub acoustic black hole, the closest analogue found so far to the Kerr black hole, is performed. Both the real and imaginary parts of the quasinormal (QN) frequencies as a function of the rotation parameter B are found through a full non-linear numerical analysis. Since there is no change in sign in the imaginary part of the frequency as B is increased we conclude that the 2+1 dimensional rotating draining bathtub acoustic black hole is stable against small perturbations.

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Cited by 2 Pith papers

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