Weak field limit of Reissner-Nordström black hole lensing
Abstract
We study gravitational lensing by a Reissner-Nordström black hole in the weak field limit. We obtain the basic equations for the deflection angle and time delay and find analytical expressions for the positions and amplifications of the primary and secondary images. Because of a net positive charge, the separation between images increases, but no change in the total magnification occurs.
- Publication:
-
Physical Review D
- Pub Date:
- January 2004
- DOI:
- 10.1103/PhysRevD.69.023002
- arXiv:
- arXiv:gr-qc/0310063
- Bibcode:
- 2004PhRvD..69b3002S
- Keywords:
-
- 95.30.Sf;
- 04.70.Bw;
- 97.60.Lf;
- Relativity and gravitation;
- Classical black holes;
- Black holes;
- General Relativity and Quantum Cosmology;
- Astrophysics
- E-Print:
- 8 pages, to appear in Phys. Rev. D