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).
- Normal galaxies
- extragalactic objects and systems
- Relativity and gravitation
- Star formation