2018/01/10 by Mark Bugden
Mathematics · Physics and Astronomy · #Astrophysical Phenomena and Observations #Black Holes and Theoretical Physics #Black hole (networking) #Circular orbit #Differential geometry #Geodesic #Geometric Analysis and Curvature Flows #Photon sphere #Quasiperiodic function #RADIUS #Schwarzschild radius #gr-qc
paper · pdf · doi:10.1007/s10714-018-2352-x
17 pages, 12 figures
arxiv created 2018/01/10 · openalex created_date 2018/01/26 · openalex publication_date 2018/02/22 · arxiv updated 2018/03/14 · openalex updated_date 2026/08/05
We study the motion of bound null geodesics with fixed coordinate radius around a five-dimensional rotating black hole. These spherical photon orbits are not confined to a plane, and can exhibit interesting quasiperiodic behaviour. We provide necessary conditions for the existence of these orbits, and explicitly compute the radii of circular orbits in the equatorial and polar planes. Finally, we plot representative examples of some of the types of possible orbits, commenting on their qualitative features.