Theory

Strong Lens Modeling in the Presence of Line of Sight Mass Structure

Active investigators: Roger, Sherry, Stefan

How should the weak lensing effect of mass structures along the line of sight be treated when modeling strong lenses?
Can this be approximated by an external convergence and shear? To what level of accuracy?
Given a halo model of a lens lightcone, what quantities (and their PDFs) should be estimated in order to correctly take into account the line of sight deflectors?