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arxiv 1405.5334 v1 pith:36YHMSAO submitted 2014-05-21 gr-qc

Quasinormal Modes of Lovelock Black Holes

classification gr-qc
keywords modesquasinormalspacetimeblackdimensiondimensionshigherimaginary
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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The quasinormal modes of metric perturbations in asymptotically flat black hole spacetimes in the Lovelock model are calculated for different spacetime dimensions and higher orders of curvature. It is analytically established that in the asymptotic limit $l \rightarrow \infty$, the imaginary parts of the quasi normal frequencies become constant for tensor, scalar as well as vector perturbations. Numerical calculation shows that this indeed is the case. Also, the real and imaginary parts of the quasinormal modes are seen to increase as the order of the theory $k$ increases. The real part of the modes decreases as the spacetime dimension $d$ increases, indicating the presence of lower frequency modes in higher dimensions. Also, it is seen that the modes are roughly isospectral at very high values of the spacetime dimension $d$.

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Cited by 2 Pith papers

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  1. Long-lived quasinormal modes, shadows and particle motion in four-dimensional quasi-topological gravity

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    Massive scalar quasinormal modes in quasi-topological black holes become long-lived as scalar mass grows, while photon-sphere radius, shadow size, and ISCO exhibit moderate deviations from Schwarzschild.

  2. Relativistic strange quark stars in Lovelock gravity

    gr-qc 2019-07 unverdicted novelty 5.0

    Numerical computation of mass-radius profiles, compactness, and gravitational redshift for strange quark stars in 5D Gauss-Bonnet gravity across several values of the Gauss-Bonnet parameter.