Spherical photon orbits around the Kerr-like black hole in Einstein-Bumblebee gravity
Abstract
Abstract This paper analyzes photon orbits around a rotating black hole in Einstein-Bumblebee gravity, where Lorentz symmetry is broken. We solve the Hamilton-Jacobi equation to model the photon motion, which shows significant deviations from predictions of general relativity. A key finding is a critical inclination angle that determines the number and position of photon orbits. All orbits outside the event horizon are unstable. Importantly, the critical impact parameter decreases with stronger Lorentz violation, providing a potential observational test to distinguish this theory from standard gravity.
Fields of Study & Subjects
Black Holes and Theoretical Physics
Astrophysical Phenomena and Observations
Noncommutative and Quantum Gravity Theories
Publication details
- Journal / source
- Physica Scripta
- Publisher
- IOP Publishing
- Volume
- 101
- Issue
- 4
- Pages
- 045008–045008
- Publication date
- 29 January 2026