Reconstructing images of gravitational lenses with regularizing algorithms

Details Reconstructing images of gravitational lenses with regularizing algorithms Reconstructing images of gravitational lenses with regularizing algorithms

2003-11-21

arxiv.org/abs/astro-ph/0311508v1

Astronomy and Astrophysics

Astrophysics

to appear in proceedings of the meeting on 'Gravitational Lensing : A unique Tool for Cosmology' held in Aussois, France, 5-11

Scientific paper

This note addresses possible applications of the Tikhonov regularization to image reconstruction of gravitational lens systems. Several modifications of the regularization algorithm are discussed. Our illustrative example is the close quadruple gravitational lens QSO 2237+0305 (Einstein Cross). The restored image of the lens is decomposed into two parts - the quasar components and the background galaxy.

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