Eur. Phys. J. C (2018) 78: 91
https://doi.org/10.1140/epjc/s10052-018-5586-6

Regular Article - Theoretical Physics

Shadow cast by rotating braneworld black holes with a cosmological constant

¹ Instituto de Astronomía y Física del Espacio (IAFE, CONICET-UBA), Casilla de Correo 67, Sucursal 28, 1428, Buenos Aires, Argentina
² Departamento de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria Pabellón I, 1428, Buenos Aires, Argentina

^* e-mail: cmsendra@iafe.uba.ar

Received: 5 December 2017
Accepted: 23 January 2018
Published online: 31 January 2018

Abstract

In this article, we study the shadow produced by rotating black holes having a tidal charge in a Randall–Sundrum braneworld model, with a cosmological constant. We obtain the apparent shape and the corresponding observables for different values of the tidal charge and the rotation parameter, and we analyze the influence of the presence of the cosmological constant. We also discuss the observational prospects for this optical effect.