4.7 Article

Strong field gravitational lensing in the deformed Horcava-Lifshitz black hole

期刊

PHYSICAL REVIEW D
卷 80, 期 2, 页码 -

出版社

AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.80.024036

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资金

  1. National Natural Science Foundation of China [10875041]
  2. Scientific Research Fund of Hunan Provincial Education Department [07B043]
  3. key disciplines in Hunan Province
  4. FANEDD [200317]
  5. Hunan Provincial Natural Science Foundation of China [08JJ3010]

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Adopting the strong field limit approach, we studied the properties of strong field gravitational lensing in the deformed Horcava-Lifshitz black hole and obtained the angular position and magnification of the relativistic images. Supposing that the gravitational field of the supermassive central object of the galaxy described by this metric, we estimated the numerical values of the coefficients and observables for gravitational lensing in the strong field limit. Comparing with the Reissner-Nordstroumlm black hole, we find that with the increase of parameter alpha, the angular position theta(infinity) decreases more slowly and r(m) more quickly, but angular separation s increases more rapidly. This may offer a way to distinguish a deformed Horcava-Lifshitz black hole from a Reissner-Nordstroumlm black hole by the astronomical instruments in the future.

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