2010/04/30 by Hongbo Cheng, Jingyun Man · 34 citations
Physics and Astronomy · #Astrophysical Phenomena and Observations #Astrophysics and Cosmic Phenomena #Deflection (physics) #Gravitation #Gravitational field #Gravitational lens #Magnetic monopole #Magnification #Pulsars and Gravitational Waves Research #Schwarzschild metric #Schwarzschild radius #Solid angle #gr-qc #hep-th
paper · pdf · doi:10.1088/0264-9381/28/1/015001
published in Classical and Quantum Gravity 28(1), 015001 (IOP Publishing) · 15 pages, 5 figures
openalex publication_date 2010/12/08 · arxiv created 2015/06/30 · arxiv updated 2015/07/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We investigate the gravitational lensing effect in the strong field background around the Schwarzschild black hole with extremely small mass and solid deficit angle subject to the global monopole by means of the strong field limit issue. We obtain the angular position and magnification of the relativistic images and show that they relate to the global monopole parameter η. We discuss that with the increase of the parameter η, the minimum impact parameter u m and angular separation s increase and the relative magnification r decreases. We also find that s grows extremely as the increasing parameter η becomes large enough. The deflection angle will become larger when the parameter η grows. The effect from the solid deficit angle is the dependence of angular position, angular separation, relative magnification and deflection angle on the parameter η, which may offer a way to characterize some possible distinct signatures of the Schwarzschild black hole with a solid deficit angle associated with the global monopole.