Systematic effects in strong lensing source reconstruction methods

Albero Blanquer, Vicent Ciprià (2019) Systematic effects in strong lensing source reconstruction methods. Bachelor's Thesis, Astronomy.

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Abstract

The objective of this report is to find systematic effects that emerge from the methods used for the reconstruction of a source in strong gravitational lenses. An adaptive grid is used to reconstruct the brightness of the lensed source. The analysis is focused on the role of the Point Spread Function (PSF) and its impact on the reconstruction, and on different types of regularization (curvature and covariance) for different levels of regularization. The use of an incorrect PSF for the reconstruction is shown as decisive, and the curvature regularization is preferred for the optimal value of the regularization parameter.

Item Type:	Thesis (Bachelor's Thesis)
Supervisor name:	Koopmans, L.V.E.
Degree programme:	Astronomy
Thesis type:	Bachelor's Thesis
Language:	English
Date Deposited:	13 Jul 2019
Last Modified:	16 Jul 2019 10:11
URI:	https://fse.studenttheses.ub.rug.nl/id/eprint/20192

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