Relativistic optics in gravitational lensing: The focus of a cluster and its aberrations |
| |
Authors: | Du?an Hemzal |
| |
Institution: | (1) Institute of Theoretical Physics and Astrophysics, Masaryk University, Kotlářská 2, 611 37 Brno, Czech Republic |
| |
Abstract: | In this article, general idea of focusing is studied within the framework of optics extension into general relativity (covariant optics). In a configuration of static spacetime, the general, mathematically rigorous treatment of rays, wavefronts and caustics
of spherical symmetry is presented, particularly with regard to problems of obtaining them within general relativity. An original
result is the aberration formulation to covariant optics, whose application is given in this paper; a particular solution
of Einstein equations is finally chosen to provide concrete, exact results of cluster focal length and its aberration structure.
In this way, a gravitational lensing situation is shown to be a true lens. |
| |
Keywords: | 98 62 Sb 42 15 Fr |
本文献已被 SpringerLink 等数据库收录! |
|