A diffraction limit on the gravitational lens effect |
| |
Authors: | Robert J Bontz Mark P Haugan |
| |
Institution: | (1) Department of Physics, University of Utah, Salt Lake City, Utah, USA |
| |
Abstract: | The focussing of gravitational radiation by the interior and exterior gravitational field of a Newtonian gravitational lens
is considered. A graphical method for determining the caustic structure of a Newtonian gravitational lens is presented and
the caustic structure of a solar type gravitational lens is discussed. Estimates of the amplitude magnification in the caustic
region indicate that waves with frequencies less than a critical cutoff frequency ω
c
are not amplified significantly. For a lens of massM this cutoff frequency is ω
c
≈(10-1πM)-1; for the Sun ω
c
≈104s-1.
Work supported in part by National Science Foundation Grant PHY78-05368. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |