Taking models of galaxies from the Hubble Space Telescope Ultra Deep Field (HUDF) and applying a correction for the HUDF point spread function we generate lensed simulations of deep, opti... ▽ More We present a simulation analysis of weak gravitational lensing flexion and shear measurement using shapelet decomposition, and identify differences between flexion and shear measurement noise in deep survey data. (arxiv.org)
To do this, they used a technique called weak gravitational lensing. (ibtimes.com)
It will measure weak gravitational lensing deep in space as a way of detecting dark energy and dark matter. (sciencemag.org)