Evidence of the accelerated expansion of the Universe from weak lensing tomography with... - 0 views
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Douglas Clowe on 03 Jun 12This paper describes measurements of cosmic shear from a 2 square degree Hubble Space Telescope survey, combined with photometric redshifts of the lensed galaxies. The addition of the photometric redshifts allowed the authors to measure the evolution of the mass power-spectrum, which provides additional information about the cosmological model beyond what the integrated power-spectrum can provide.