Cluster Reconstruction from Combined Strong and Weak Lensing

Details Cluster Reconstruction from Combined Strong and Weak Lensing Cluster Reconstruction from Combined Strong and Weak Lensing

1999-09-14

arxiv.org/abs/astro-ph/9909249v1

Astronomy and Astrophysics

Astrophysics

8 pages incl 6 figures. Invited talk at "Gravitational Lensing: Recent Progress and Future Goals", Boston University, MA, July

Scientific paper

The lensing information provided by multiple images, arclets, and statistical distortions can all be formulated as linear constraints on the arrival-time surface, and hence on the mass distribution. This reduces cluster lens reconstruction from combined strong and weak lensing to a standard type of inversion problem. Moreover, the mass sheet degeneracy is broken if there are sources at different redshifts.

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