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Deconvolution with Shapelets
Peter Melchior, Rene Andrae, Matteo Maturi +1
We seek to find a shapelet-based scheme for deconvolving galaxy images from the PSF which leads to unbiased shear measurements. Based on the analytic formulation of convolution in…
Realistic simulations of gravitational lensing by galaxy clusters: extracting arc parameters from mock DUNE images
Massimo Meneghetti, Peter Melchior, Andrea Grazian +6
We present a newly developed code that allows simulations of optical observations of galaxy fields with a variety of instruments. The code incorporates gravitational lensing effect…
Reliable Shapelet Image Analysis
P. Melchior, M. Meneghetti, M. Bartelmann
Aims: We discuss the applicability and reliability of the shapelet technique for scientific image analysis. Methods: We quantify the effects of non-orthogonality of sampled shapele…