Integral-Field Spectroscopy of SLACS Lenses

Abstract

The combination of two‐dimensional kinematics and gravitational lens modelling permits detailed reconstruction of the phase‐space structure of early‐type galaxies and sets constraints on the dark‐matter distribution in their inner regions. We describe a project which combines integral‐field spectroscopy from an ESO Large Programme using VIMOS on the VLT with deep HST ACS and NICMOS images to study a sample of 17 early‐type lens galaxies at z≈0.1–0.3, drawn from the Sloan Lens ACS survey (SLACS).