Fig. 6.
Mean intrinsic tangential ellipticity ⟨γIA⟩(θ) as a function of angular separation θ (estimated from the Illustris simulation, Vogelsberger et al. 2014; Hilbert et al. 2017) for lenses at redshift zd = 0.83 and sources at redshifts zs ∈ [0.805, 0.855]. The IA signal strongly depends on whether the shape estimator uses unweighted or radially weighted second moments of the galaxy image light distribution.
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