Maximum-Likelihood Cluster Recontruction

Details Maximum-Likelihood Cluster Recontruction Maximum-Likelihood Cluster Recontruction

1996-01-04

arxiv.org/abs/astro-ph/9601011v1

Astronomy and Astrophysics

Astrophysics

9 pages including 2 figures, submitted to ApJ Letters

Scientific paper

10.1086/310114

We present a novel method to recontruct the mass distribution of galaxy clusters from their gravitational lens effect on background galaxies. The method is based on a least-chisquare fit of the two-dimensional gravitational cluster potential. The method combines information from shear and magnification by the cluster lens and is designed to easily incorporate possible additional information. We describe the technique and demonstrate its feasibility with simulated data. Both the cluster morphology and the total cluster mass are well reproduced.

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