Integral-field spectroscopy of SLACS lenses
Oliver Czoske, Matteo Barnabe, Leon Koopmans (Kapteyn Astronomical, Institute, Groningen, NL)
TL;DR
This study combines integral-field spectroscopy and gravitational lens modeling to analyze the internal structure and dark matter distribution of 17 early-type galaxies at moderate redshifts, enhancing understanding of galaxy evolution.
Contribution
It introduces a comprehensive approach integrating VIMOS integral-field data with HST imaging to study galaxy kinematics and dark matter in SLACS lenses.
Findings
Detailed phase-space reconstructions of early-type galaxies.
Constraints on dark matter distribution in galaxy cores.
Enhanced understanding of galaxy structure at intermediate redshifts.
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 redshifts between 0.1 and 0.3, drawn from the Sloan Lens ACS survey (SLACS).
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Taxonomy
TopicsAstronomy and Astrophysical Research · Adaptive optics and wavefront sensing · Stellar, planetary, and galactic studies