Simulating Weak Lensing by Clusters and Large-Scale Structure

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dc.creatorJain, Bhuvnesh
dc.creatorSeljak, Uros
dc.creatorWhite, Simon
dc.date1999-01-21
dc.date.accessioned2026-07-07T02:30:07Z
dc.date.available2026-07-07T02:30:07Z
dc.descriptionSelected results on estimating cosmological parameters from simulated weak lensing data with noise are presented. Numerical simulations of ray tracing through N-body simulations have been used to generate shear and convergence maps due to lensing by large-scale structure. Noise due to the intrinsic ellipticities of a finite number of galaxies is added. In this contribution we present our main results on estimation of the power spectrum and density parameter Omega from weak lensing data on several degree sized fields. We also show that there are striking morphological differences in the weak lensing maps of clusters of galaxies formed in models with different values of Omega.
dc.description8 pages, 6 figures. To appear in Proceedings of the MPA/ESO Conference "Evolution of Large Scale Structure: From Recombination to Garching". Color figures and links at http://tarkus.pha.jhu.edu/~bjain/cluster_images.html
dc.identifierhttps://arxiv.org/abs/astro-ph/9901287
dc.identifierhttp://arxiv.org/abs/astro-ph/9901287
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/13719
dc.subjectAstrophysics
dc.titleSimulating Weak Lensing by Clusters and Large-Scale Structure
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