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EnglishWe give the formulation of the gravitational lensing theory in the strong field limit for a Schwarzschild black hole as a counterpart to the weak field approach. It is possible to expand the full black hole lens equation to work a simple analytical theory that describes the physics in the strong field limit at a high accuracy degree. In this way, we derive compact and reliable mathematical formulae for the position of additional critical curves, relativistic images and their magnification, arising in this limit.
http://hdl.handle.net/11386/1063608| Titolo: | Strong field limit of black hole gravitational lensing |
| Autori interni: | BOZZA, Valerio IOVANE, Gerardo SCARPETTA, Gaetano |
| Data di pubblicazione: | 2001 |
| Rivista: | GENERAL RELATIVITY AND GRAVITATION |
| Abstract: | We give the formulation of the gravitational lensing theory in the strong field limit for a Schwarzschild black hole as a counterpart to the weak field approach. It is possible to expand the full black hole lens equation to work a simple analytical theory that describes the physics in the strong field limit at a high accuracy degree. In this way, we derive compact and reliable mathematical formulae for the position of additional critical curves, relativistic images and their magnification, arising in this limit. |
| Handle: | http://hdl.handle.net/11386/1063608 |
| Appare nelle tipologie: | 1.1.2 Articolo su rivista con ISSN |
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