Analytical formulas for gravitational lensing
- 18 April 2006
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review D
- Vol. 73 (8), 083004
- https://doi.org/10.1103/physrevd.73.083004
Abstract
In this paper we discuss a new method which can be used to obtain arbitrarily accurate analytical expressions for the deflection angle of light propagating in a given metric. Our method works by mapping the integral into a rapidly convergent series and provides extremely accurate approximations already to first order. We have derived a general first order formula for a generic spherically symmetric static metric tensor and we have tested it in four different cases.Keywords
Other Versions
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