Extreme mass-ratio inspiral as a probe of extra dimensions: The case of spinning massive object

Zi, Tieguang

doi:10.1016/j.physletb.2024.138538

Cited by 1 publication

(1 citation statement)

References 96 publications

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“…In [9,10], the authors explored the precise steady-state solutions and axisymmetric solutions of BHs, validating the formation of a closed system in the effective gravitational field equations on the brane with the Kerr-Schild form of the metric, replacing the Kerr-Newman solutions from ordinary GR with tidal charge replacing the electric charge. The charged rotating BH (hereafter for short: BWBH) obtained in [10] has been studied extensively, see for example [11][12][13][14][15][16][17][18][19][20][21][22][23][24][25]. These studies involved exploring the nature and effects of extra dimensions and their connection and divergence from traditional four-dimensional gravitational theories.…”

Section: Introductionmentioning

confidence: 99%

Possible signatures of higher dimension in thin accretion disk around brane world black hole

Liu,

He,

Liu

et al. 2024

J. Cosmol. Astropart. Phys.

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We probe deeply into the characteristics of thin accretion disk surrounding black hole within the brane world paradigm. We investigate how model parameters affect the physical properties of the disk. Our findings indicate that as the tidal charge parameter inherited from the higher dimension increases, the energy flux, the radiation temperature, the spectral cutoff frequency, the spectral luminosity, and the conversion efficiency of the disk all increase, but the radius of the innermost stable circular orbit decreases. Compared to cases of the Kerr and Schwarzschild black holes, the disk is hotter and more luminous for positive tidal charge parameter, while it is cooler and less luminous for negative tidal charge parameter, which suggests the potential for probing possible signatures of higher dimension.

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