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Lognormal Property of Weak‐Lensing Fields
2002
Astrophysical Journal
The statistical property of the weak lensing fields is studied quantitatively using the ray-tracing simulations. Motivated by the empirical lognormal model that characterizes the probability distribution function(PDF) of the three-dimensional mass distribution excellently, we critically investigate the validity of lognormal model in the weak lensing statistics. Assuming that the convergence field, κ, is approximately described by the lognormal distribution, we present analytic formulae of
doi:10.1086/340048
fatcat:gbx74kd4ufdlbipwtkn5zrnsni