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- W2008419521 abstract "We develop an algorithm for the reconstruction of the two-dimensional mass distribution of a gravitational lens from the observable distortion of background galaxies. From the measured reduced shear, the lens mapping is obtained, from which a mass distribution is derived. This is unlike other methods where the convergence κ is directly obtained. We show that this method works best for subcritical lenses but can be applied to a critical lens away from the critical lines. For finite fields, the usual mass-sheet degeneracy is shown to exist in this method. We show that the algorithm reproduces the mass distribution within acceptable limits when applied to simulated noisy data." @default.
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- W2008419521 date "2001-10-10" @default.
- W2008419521 modified "2023-09-27" @default.
- W2008419521 title "A Lens-Mapping Algorithm for Weak Lensing" @default.
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- W2008419521 doi "https://doi.org/10.1086/324064" @default.
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