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Superresonance Phenomenon from Acoustic Black Holes in Neo-Newtonian theory

We explore the possibility of the acoustic analogue of a super-radiance like phenomenon, i.e., the amplification of a sound wave by reflection from the ergo-region of a rotating acoustic black hole in the fluid draining bathtub model in the presence of the pressure be amplified or reduced in agreement with the value of the parameter $\left(γ=1+ \frac{knρ_0^{n-1} }{c^2}\right)$. We remark that the interval of frequencies depend upon the neo-newtonian parameter $γ$\, ($\barΩ_H = \frac{2 }{1+γ}\;Ω_{H}$)\textbf{ and becomes narrow in this work}. As a consequence, the tuning of the neo-newtonian parameter $\left(γ=1+ \frac{knρ_0^{n-1} }{c^2}\right)$ changes the rate of loss of the acoustic black hole mass.

preprint2016arXivOpen access

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