Maximum Likelihood Cluster Reconstruction | Zendy

Matthias Bartelmann | Zendy; Ramesh Narayan | Zendy; S. Seitz | Zendy; Peter Schneider | Zendy

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Maximum Likelihood Cluster Reconstruction

Author(s) -

Matthias Bartelmann,

Ramesh Narayan,

S. Seitz,

Peter Schneider

Publication year - 1996

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/310114

Subject(s) - cluster (spacecraft) , gravitational lens , mass distribution , galaxy cluster , magnification , gravitation , lens (geology) , galaxy , astrophysics , brightest cluster galaxy , physics , computer science , astronomy , optics , redshift , programming language

We present a novel method to recontruct the mass distribution of galaxyclusters from their gravitational lens effect on background galaxies. Themethod is based on a least-chisquare fit of the two-dimensional gravitationalcluster potential. The method combines information from shear and magnificationby the cluster lens and is designed to easily incorporate possible additionalinformation. We describe the technique and demonstrate its feasibility withsimulated data. Both the cluster morphology and the total cluster mass are wellreproduced.Comment: 9 pages including 2 figures, submitted to ApJ Letter

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