Physics Letters B (Nov 2017)

Strong deflection lensing by a Lee–Wick black hole

  • Shan-Shan Zhao,
  • Yi Xie

DOI
https://doi.org/10.1016/j.physletb.2017.09.090
Journal volume & issue
Vol. 774, no. C
pp. 357 – 361

Abstract

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We study strong deflection gravitational lensing by a Lee–Wick black hole, which is a non-singular black hole generated by a high derivative modification of Einstein–Hilbert action. The strong deflection lensing is expected to produce a set of relativistic images very closed to the event horizon of the black hole. We estimate its observables for the supermassive black hole in our Galactic center. It is found that the Lee–Wick black hole can be distinguished from the Schwarzschild black hole via such lensing effects when the UV scale is not very large, but the requiring resolution is much higher than current capability.