Integral-field spectroscopy of the quadruple QSO HE 0435-1223: Evidence for microlensing

L. Wisotzki, T. Becker, L. Christensen +5

We present the first spatially resolved spectroscopic observations of the recently discovered quadruple QSO and gravitational lens HE0435-1223. Using the Potsdam Multi-Aperture Spe…