Weak Lensing Analysis of Cl 1358+62 Using Hubble Space Telescope Observations

We report on the detection of weak gravitational lensing of faint, distant background objects by Cl 1358+62, a cluster of galaxies at a redshift of z=0.33. The observations were made using the Hubble Space Telescope (HST). The point spread function of HST is highly anisotropic at the edges of the individual chips. This systematically perturbs the shapes of… CONTINUE READING