Strong gravitational lensing in a noncommutative black-hole spacetime

Journal Article · Fri Apr 15 04:00:00 EDT 2011 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.83.084005· OSTI ID:21541471

Chikun, Ding; Shuai, Kang; Changyong, Chen; Songbai, Chen; Jiliang, Jing ^[1]

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1. Department of Physics and Information Engineering, Hunan Institute of Humanities Science and Technology, Loudi, Hunan 417000 (China)

Noncommutative geometry may be a starting point to a quantum gravity. We study the influence of the spacetime noncommutative parameter on the strong field gravitational lensing in the noncommutative Schwarzschild black-hole spacetime and obtain the angular position and magnification of the relativistic images. Supposing that the gravitational field of the supermassive central object of the galaxy can be described by this metric, we estimate the numerical values of the coefficients and observables for strong gravitational lensing. In comparison to the Reissner-Norstroem black hole, we find that the influences of the spacetime noncommutative parameter is similar to those of the charge, but these influences are much smaller. This may offer a way to distinguish a noncommutative black hole from a Reissner-Norstroem black hole, and may permit us to probe the spacetime noncommutative constant {theta} by the astronomical instruments in the future.

• OSTI ID: 21541471
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 8 Vol. 83; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
79 ASTRONOMY AND ASTROPHYSICS
BLACK HOLES
COMMUTATION RELATIONS
COMPARATIVE EVALUATIONS
ENERGY RANGE
EVALUATION
FIELD THEORIES
GALAXIES
GRAVITATIONAL FIELDS
GRAVITATIONAL LENSES
LENSES
QUANTUM FIELD THEORY
QUANTUM GRAVITY
RELATIVISTIC RANGE
SCHWARZSCHILD RADIUS
SPACE-TIME