Maximum-Likelihood Cluster Recontruction
天体物理学
2009-10-28 v1
摘要
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.
引用
@article{arxiv.astro-ph/9601011,
title = {Maximum-Likelihood Cluster Recontruction},
author = {Matthias Bartelmann and Ramesh Narayan and Stella Seitz and Peter Schneider},
journal= {arXiv preprint arXiv:astro-ph/9601011},
year = {2009}
}
备注
9 pages including 2 figures, submitted to ApJ Letters