Maximum likelihood cluster reconstruction

被引：84

作者：

Bartelmann, M ^{[1
]}

Narayan, R ^{[1
]}

Seitz, S ^{[1
]}

Schneider, P ^{[1
]}

机构：

[1] HARVARD SMITHSONIAN CTR ASTROPHYS,CAMBRIDGE,MA 02138

来源：

ASTROPHYSICAL JOURNAL | 1996年 / 464卷 / 02期

基金：

美国国家科学基金会;

关键词：

galaxies; clusters; general; gravitational lensing; methods; numerical;

D O I：

10.1086/310114

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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 duster 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

页码：L115 / L118

页数：4