1999MNRAS.306..567F

Query : 1999MNRAS.306..567F

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

Simbad objects: 5

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Number of rows : 5
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 ACO 370 ClG 02 39 50.5 -01 35 08           ~ 825 0
2 8C 0958+561 QSO 10 01 20.6918953728 +55 53 55.593949272   17.16 16.95     ~ 757 3
3 QSO J2240+0321 QSO 22 40 30.234 +03 21 30.63           ~ 705 1
4 Z 378-15 AGN 22 40 30.23447 +03 21 30.6290           ~ 636 0
5 ClG 2244.6-0222 ClG 22 47 12.2 -02 05 37           ~ 128 0

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