Shadows and observation intensity of black holes in the Randall-Sundrum brane world model
Chinese Physics C(2022)
Abstract
The shadow and observation intensity of a black hole surrounded by a thin spherical accretion in the Randall-Sundrum brane world model are investigated. The bulk metric depends on the tidal charge parameter, q, and deformation parameter, C. It reduces to the metric that possesses similar form with the Reissner-Nordstrom metric if q. The observation intensity is mainly influenced by the tidal charge parameter, q, and the deformation parameter, C, is of secondary importance. In the optical observation, the black holes appear brighter with higher q or lower C.
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Key words
shadows, observation intensity, Randall-Sundrum brane
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