We present a novel method to reconstruct the mass distribution of galaxy clusters from their gravitational lens effect on background galaxies. The method is based on a least- chi 2 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.
The Astrophysical Journal
- Pub Date:
- June 1996
- COSMOLOGY: GRAVITATIONAL LENSING;
- GALAXIES: CLUSTERS: GENERAL;
- METHODS: NUMERICAL;
- 9 pages including 2 figures, submitted to ApJ Letters