Challenges facing radio weak lensing
Ben Tunbridge
University of Manchester
Michael Brown (University of Manchester), Ian Harrison (University of Manchester)
Radio astronomy and weak lensing studies are independently approaching a crossroads where a combination of the two will soon be viable. We present our initial findings, applying techniques developed for optical studies, to radio observations for the purpose of weak lensing. To conduct this work we take advantage of archival VLA and HST observations of the well studied COSMOS field. By doing so we compare shape measurements obtained from analysis of these two observational regimes. We will be discussing the effectiveness of this approach and what further development will be required for future attempts of multi-wavelength weak lensing studies.