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Gravitational Lensing & Stellar Dynamics

Published online by Cambridge University Press:  19 May 2006

G.A. Mamon ,
F. Combes ,
C. Deffayet ,
B. Fort  and
L.V.E. Koopmans
L.V.E. Koopmans*
Affiliation:
Kapteyn Astronomical Institute, PO Box 800, 9700 AV Groningen, The Netherlands
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Abstract

Strong gravitational lensing and stellar dynamics provide twocomplementary and orthogonal constraints on the density profiles ofgalaxies. Based on spherically symmetric, scale-free, mass models, itis shown that the combination of both techniques is powerful inbreaking the mass-sheet and mass-anisotropy degeneracies. Second, observational results are presented from the Lenses Structure & Dynamics(LSD) Survey and the Sloan Lens ACS (SLACS) Survey collaborations toillustrate this new methodology in constraining the dark and stellardensity profiles, and mass structure, of early-type galaxies toredshifts of unity.

Type
Research Article
Information
European Astronomical Society Publications Series , Volume 20: Mass Profiles and Shapes of Cosmological Structures , 2006 , pp. 161 - 166
Copyright
© EAS, EDP Sciences, 2006

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