SIMBAD references

1999MNRAS.306..567F - Mon. Not. R. Astron. Soc., 306, 567-574 (1999/July-1)

The ray-bundle method for calculating weak magnification by gravitational lenses.

FLUKE C.J., WEBSTER R.L. and MORTLOCK D.J.

Abstract (from CDS):

We present here an alternative method for calculating magnifications in gravitational lensing calculations - the ray-bundle method. We provide a detailed comparison of the distribution of magnifications obtained by this method with those obtained through analytic results and conventional ray-shooting methods. The ray-bundle method provides high accuracy in the weak lensing limit, and is computationally much faster than (non-hierarchical) ray-shooting methods of a comparable accuracy.

The ray-bundle method is a powerful and efficient technique with which to study gravitational lensing within realistic cosmological models, particularly in the weak lensing limit.


Abstract Copyright: 1999 RAS

Journal keyword(s): methods: numerical - gravitational lensing

Status at CDS:  

Simbad objects: 5

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2020.04.03-12:29:25

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