Artículos de revistas
Shadow of a rotating braneworld black hole
Fecha
2012-03Registro en:
Amarilla, Leonardo; Eiroa, Ernesto Fabian; Shadow of a rotating braneworld black hole; American Physical Society; Physical Review D: Particles, Fields, Gravitation And Cosmology; 85; 6; 3-2012; 1-9; 64019
1550-7998
CONICET Digital
CONICET
Autor
Amarilla, Leonardo
Eiroa, Ernesto Fabian
Resumen
We investigate the shadow cast by a rotating braneworld black hole, in the Randall-Sundrum scenario. In addition to the angular momentum, the tidal charge term deforms the shape of the shadow. For a given value of the rotation parameter, the presence of a negative tidal charge enlarges the shadow and reduces its deformation with respect to Kerr spacetime, while for a positive charge, the opposite effect is obtained. We also analyze the case in which the combination of the rotation parameter and the tidal charge results in a naked singularity. We discuss the observational prospects corresponding to the supermassive black hole at the Galactic center.