Improving PSF modelling for weak gravitational lensing using new methods in model selection (2009)
A simple theoretical framework for the description and interpretation of spatially correlated modelling residuals is presented, and the resulting tools are found to provide a useful aid to model...
Weak gravitational shear and flexion with polar shapelets (2007)
Massey, Richard, Rowe, Barnaby, Refregier, Alexandre, Bacon, David J., Bergé, Joel
We derive expressions, in terms of 'polar shapelets', for the image distortion operations associated with weak gravitational lensing. Shear causes galaxy shapes to become elongated, and is sensitive...
Weak gravitational shear and flexion with polar shapelets (2006)
Massey, Richard, Rowe, Barnaby, Refregier, Alexandre, Bacon, David J., Berge, Joel
We derive expressions, in terms of "polar shapelets", for the image distortion operations associated with weak gravitational lensing. Shear causes galaxy shapes to become elongated, and is sensitive...