2010/05/25 by Bogeun Gwak, Bum-Hoon Lee
Mathematics · Physics and Astronomy · #Astronomy #Astrophysical Phenomena and Observations #Black Holes and Theoretical Physics #Black hole (networking) #Charged black hole #Classical mechanics #General relativity #Geodesic #Geometry #Gravitation #Gravitational collapse #Horizon #Kerr metric #Mathematical physics #Mathematics #Null (SQL) #Photon sphere #Physics #Pulsars and Gravitational Waves Research #Schwarzschild geodesics #Schwarzschild metric #Schwarzschild radius #White hole #gr-qc #hep-th
paper · pdf · doi:10.1088/1475-7516/2010/09/031
published as JCAP 1009:031,2010 · 10 pages, 8 figures
arxiv created 2010/05/25 · openalex publication_date 2010/09/28 · arxiv updated 2015/03/16 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
In this work, the Kehagias-Sfetsos (KS) black hole in Hořava-Lifshitz gravity is probed through particle geodesics. It is found that the gravitational force of the KS black hole becomes weaker than that of Schwarzschild black hole around the horizon and interior space. Particles can be always scattered or trapped in new closed orbits, unlike those falling forever in Schwarzschild black hole. The properties of null and timelike geodesics are classified with values of coupling constants. The precession rates of the orbits are also evaluated. Furthermore, the time trajectories are classified under different values of coupling constants for both null and timelike geodesics. Physical phenomena that may be observable in our universe are discussed.