https://doi.org/10.1140/epjc/s10052-020-8321-z
Regular Article - Theoretical Physics
Constraining the tidal charge of brane black holes using their shadows
Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Avenida dos Estados 5001, Santo André, São Paulo, 09210-580, Brazil
* e-mail: nevesjcs@if.usp.br
Received:
13
July
2020
Accepted:
31
July
2020
Published online:
10
August
2020
A constraint on the tidal charge generated within a brane world is shown. Using the shadow of a rotating black hole in a brane context in order to describe the M87* parameters recently announced by the Event Horizon Telescope Collaboration, the deviation from circularity of the reported shadow produces an upper bound on the bulk’s nonlocal effect, which is conceived of as a tidal charge in the four-dimensional brane induced by the five-dimensional bulk. Therefore, a deviation from circularity 
leads to an upper bound on the tidal charge 
.
© The Author(s), 2020
