Weak Lensing Measurements: A Revisited Method and Application to<i>Hubble Space Telescope</i>Images
Weak Lensing Measurements: A Revisited Method and Application to<i>Hubble Space Telescope</i>Images
The weak distortions produced by gravitational lensing in the images of background galaxies provide a unique method to measure directly the distribution of mass in the universe. However, because the induced distortions are only of a few percent, this technique requires high-precision measurements of the lensing shear and cautious corrections …