Phys. Rev. D 65, 023005 (2001) [15 pages]Image distortion by thick lensesReceived 6 September 2001; published 26 December 2001 The distortion of elliptical images by gravitational lenses of finite thickness is addressed and discussed within a spacetime setting. In our model the gravitational field of the thick lens is represented as a square barrier of arbitrarily given strength and range. Comparisons with its corresponding thin-lens analogue are given as well, and some differences between thin- and thick-lens scenarios of estimated physical relevance are evaluated. © 2001 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevD.65.023005
DOI:
10.1103/PhysRevD.65.023005
PACS:
98.62.Sb, 04.90.+e, 95.30.Sf
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