A Lens Mapping Algorithm for Weak Lensing

Details A Lens Mapping Algorithm for Weak Lensing A Lens Mapping Algorithm for Weak Lensing

2000-02-22

arxiv.org/abs/astro-ph/0002416v2

Astrophys.J. 560 (2001) L9-L14

Astronomy and Astrophysics

Astrophysics

4 pages, 6 figures, uses emulateapj5.sty (included); substantially revised; a slightly shorter version (fewer figures) will ap

Scientific paper

10.1086/324064

We develop an algorithm for the reconstruction of the two-dimensional mass distribution of a gravitational lens from the observable distortion of background galaxies. From the measured reduced shear, the lens mapping is obtained, from which a mass distribution is derived. This is unlike other methods where the convergence ("kappa") is directly obtained. We show that this method works best for sub-critical lenses, but can be applied to a critical lens away from the critical lines. For finite fields the usual mass-sheet degeneracy is shown to exist in this method as well. We show that the algorithm reproduces the mass distribution within acceptable limits when applied to simulated noisy data.

Affiliated with

Also associated with

No associations

Rating

A Lens Mapping Algorithm for Weak Lensing does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with A Lens Mapping Algorithm for Weak Lensing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A Lens Mapping Algorithm for Weak Lensing will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-557744