,Gravitational Perturbations in Einstein Aether Black Hole Spacetime

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We study the gravitational perturbations in Einstein aether black hole spacetime and find that the quasinormal modes (QNMs) of the first kind of aether black hole are similar to that of a Lorentz violation (LV) model,the quantum electrodynamics (QED) extension limit of standard model extension.These similarities between completely different backgrounds may imply that LV in the gravity sector and LV in the matter sector have some connections:damping QNMs more rapidly and prolonging its oscillation period.Compared to the Schwarzschild case,the first kind of black holes have larger damping rates and the second ones have lower damping rates,and they all have smaller real oscillation frequency.These differences could be detected by the new generation of gravitational antennas.
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