Other
Scientific paper
Mar 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002sgdh.conf....9n&link_type=abstract
THE SHAPES OF GALAXIES AND THEIR DARK HALOS. Proceedings of the Yale Cosmology Workshop. Held 28-30 May 2001 in New Haven, Conne
Other
2
Scientific paper
A new technique is proposed to measure the flattening of dark matter halos using weak gravitational lensing. The shape parameters of the mass distribution of foreground galaxies can be measured from the two-dimensional shear field derived from background galaxies using an extension of the standard galaxy-galaxy lensing scheme. Modeling galaxies using an elliptical, isothermal profile, it is demonstrated that measuring the flatness is feasible with data from the on-going Sloan Digital Sky Survey (SDSS).
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