K. P. Rauch and R. Blandford, “Optical Caustics in a Kerr Spacetime and the Origin of Rapid X-Ray Variability in Active Galactic Nuclei,” The Astrophysical Journal, Vol. 421, No. 1, 1994, pp. 46-68. doi:10.1086/173625

has been cited by the following article:

• TITLE: Wavefronts and Light Cones for Kerr Spacetimes

  AUTHORS: Francisco Frutos-Alfaro, Frank Grave, Thomas Müller, Daria Adis

  KEYWORDS: General Relativity; Wavefronts; Lightcones; Simulations

  JOURNAL NAME: Journal of Modern Physics, Vol.3 No.12, December 20, 2012

  ABSTRACT: We investigate the light propagation by means of simulations of wavefronts and light cones for Kerr spacetimes. Simulations of this kind give us a new insight to better understand the light propagation in presence of massive rotating black holes. A relevant result is that wavefronts are backscattered with winding around the black hole. To generate these visualizations, an interactive computer program with a graphical user interface, called JWFront, was written in Java.