Reconstructing images of gravitational lenses with regularizing algorithms

(2) Department of Mathematics; (3) Theoretical Physics; A. Yagola (2) ((1) Sternberg State Astronomical Institute; B. Artamonov (1); E. Koptelova (1); E. Shimanovskaya (2); Faculty of Physics; Moscow State University; M. Sazhin (1); Oxford University)

arxiv: astro-ph/0311508 · v1 · submitted 2003-11-21 · 🌌 astro-ph

Reconstructing images of gravitational lenses with regularizing algorithms

E. Koptelova (1) , E. Shimanovskaya (2) , B. Artamonov (1) , V.Belokurov (3) , M. Sazhin (1) , A. Yagola (2) ((1) Sternberg State Astronomical Institute , Moscow State University , (2) Department of Mathematics

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Faculty of Physics (3) Theoretical Physics Oxford University)

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keywords gravitationallensimageregularizationaddressesalgorithmalgorithmsapplications

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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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Reconstructing images of gravitational lenses with regularizing algorithms

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