Gravitational lensing by a charged black hole of string theory

2003/05/27 by Arunava Bhadra, A. Bhadra · 3 citations
Physics and Astronomy · #Astrophysical Phenomena and Observations #Astrophysics #Black Holes and Theoretical Physics #Black hole (networking) #Charged black hole #Extremal black hole #Galaxy #Gravitational lens #Gravitational lensing formalism #Heterotic string theory #Physics #Pulsars and Gravitational Waves Research #Spin-flip #String (physics) #Strong gravitational lensing #Supermassive black hole #Theoretical physics #astro-ph #gr-qc #hep-th

paper · pdf · doi:10.1103/physrevd.67.103009

published as Phys.Rev. D67 (2003) 103009 · 6 pages

openalex publication_date 2003/05/27 · arxiv created 2003/06/04 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We study gravitational lensing by the Gibbons-Maeda-Garfinkle-Horowitz-Strominger (GMGHS) charged black hole of heterotic string theory and obtain the angular position and magnification of the relativistic images. Modeling the supermassive central object of the galaxy as a GMGHS black hole, we estimate the numerical values of different strong-lensing parameters. We find that there is no significant string effect present in the lensing observables in the strong-gravity scenario.

Citations

• Rotating charged black hole solution in heterotic string theory
• The Demography of Massive Dark Objects in Galaxy Centers
• Gravitational lensing by naked singularities
• Superstring modifications of Einstein's equations
• Strong Field Limit of Black Hole Gravitational Lensing
• Gravitational lensing in the strong field limit
• Schwarzschild black hole lensing

Cited by

• Gravitational lensing in black-bounce spacetimes
• Gravitational lensing by black holes in Einstein quartic gravity
• Relativistic images of Schwarzschild black hole lensing