Particle motion in Horava-Lifshitz black hole space-times
- Hanse Wissenschaftskolleg (HWK), 27733 Delmenhorst (Germany)
- School of Engineering and Science, Jacobs University Bremen, 28759 Bremen (Germany)
- Institut fuer Physik, Universitaet Oldenburg, 26111 Oldenburg (Germany)
- ZARM, Universitaet Bremen, Am Fallturm, 28359 Bremen (Germany)
We study the particle motion in the space-time of a Kehagias-Sfetsos black hole which is a static spherically symmetric solution of a Horava-Lifshitz gravity model. This model reduces to general relativity in the infrared limit and deviates slightly from detailed balance. Taking the viewpoint that the model is essentially a (3+1)-dimensional modification of general relativity we use the geodesic equation to determine the motion of massive and massless particles. We solve the geodesic equation exactly by using numerical techniques. We find that neither massless nor massive particles with nonvanishing angular momentum can reach the singularity at r=0. Next to bound and escape orbits that are also present in the Schwarzschild space-time we find that new types of orbits exist: manyworld bound orbits as well as two-world escape orbits. We also discuss observables such as the perihelion shift and the light deflection.
- OSTI ID:
- 21607895
- Journal Information:
- Physical Review. D, Particles Fields, Vol. 84, Issue 8; Other Information: DOI: 10.1103/PhysRevD.84.084011; (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ANGULAR MOMENTUM
BLACK HOLES
FOUR-DIMENSIONAL CALCULATIONS
GENERAL RELATIVITY THEORY
GRAVITATION
MASSLESS PARTICLES
MATHEMATICAL SOLUTIONS
MODIFICATIONS
ORBITS
SCHWARZSCHILD METRIC
SIMULATION
SINGULARITY
SPACE-TIME
SYMMETRY
ELEMENTARY PARTICLES
FIELD THEORIES
METRICS
RELATIVITY THEORY