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- W3105912408 abstract "In this article, we have investigated the equations of motion of the photons coupled to Weyl tensor by the geometric optics approximation and the corresponding shadow in a Brane-World black hole spacetime. It is shown that there exists a double shadow for a black hole since the coupling photons with different polarization directions propagate along different paths in the spacetime. Furthermore, we discuss the effects of the metric parameter $alpha$ related to the cosmological constant, X-cold dark matter parameter $beta$ and the coupling parameter $lambda$ on the umbra (the overlap region of the double shadow) and the penumbra. We also obtain the finite-distance corrections to the deflection angle of light in the Brane-World black hole spacetime as the photons coupled to Weyl tensor by using a recent geometric method." @default.
- W3105912408 created "2020-11-23" @default.
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- W3105912408 date "2020-05-01" @default.
- W3105912408 modified "2023-09-25" @default.
- W3105912408 title "Optical properties of a Brane-World black hole as photons couple to the Weyl tensor" @default.
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- W3105912408 doi "https://doi.org/10.1140/epjc/s10052-020-8022-7" @default.
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