Journal article
The Masses and Shapes of Dark Matter Halos from Galaxy-Galaxy Lensing in the CFHT Legacy Survey
Abstract
We present the first galaxy-galaxy weak-lensing results using early data from the Canada-France-Hawaii Telescope Legacy Survey (CFHTLS). These results are based on ~22 deg2 of i′ data. From these data, we estimate the average velocity dispersion for an L* galaxy at a redshift of 0.3 to be 137 ± 11 km s-1, with a virial mass, M200, of (1.1 ± 0.2) × 1012 h-1 M☉ and a rest-frame mass-to-light ratio of 173 ± 34 h M☉/L. We also investigate various …
Authors
Parker LC; Hoekstra H; Hudson MJ; van Waerbeke L; Mellier Y
Journal
The Astrophysical Journal, Vol. 669, No. 1, pp. 21–31
Publisher
American Astronomical Society
Publication Date
November 2007
DOI
10.1086/521541
ISSN
0004-637X