Black Hole Shadows and Invariant Phase Space Structures
arXiv:1705.07061 · doi:10.1103/PhysRevD.96.024045
Abstract
Utilizing concepts from dynamical systems theory, we demonstrate how the existence of light rings, or fixed points, in a spacetime will give rise to families of periodic orbits and invariant manifolds in phase space. It is shown that these structures define the shape of the black hole shadow as well as a number of salient features of the spacetime lensing. We illustrate this through the analysis of lensing by a hairy black hole.
6 pages
References in corpus (6)
- Are eikonal quasinormal modes linked to the unstable circular null geodesics?
- Light rings as observational evidence for event horizons: long-lived modes, ergoregions and nonlinear instabilities of ultracompact objects
- A Periodic Table for Black Hole Orbits
- Chaotic lensing around boson stars and Kerr black holes with scalar hair
- What does a binary black hole merger look like?
- Stable photon orbits in stationary axisymmetric electrovacuum spacetimes