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Probing dark matter distribution with gravitational lensing and stellar dynamics | | T.Treu
; L.V.E. Koopmans
; | | Date: |
20 May 2002 | | Subject: | astro-ph | | Affiliation: | California Institute of Technology | | Abstract: | The Lenses Structure and Dynamics (LSD) Survey aims at measuring the luminous and dark matter distribution of high redshift early-type galaxies by combining gravitational lens analysis with newly determined velocity dispersion profiles. Here we describe the first results from the LSD survey, a measurement of the internal structure of the lens galaxy in MG2016+112 (z=1.004). The relevance of this measurement to the cosmological model is briefly discussed, in particular in the context of E/S0 galaxy formation and evolution, the existence and shape of universal dark matter profiles, and the measurement of the Hubble constant from gravitational time delay. | | Source: | arXiv, astro-ph/0205335 | | Services: | Forum | Review | PDF | Favorites | |
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