1303.1808 (Catherine Heymans et al.)

CFHTLenS tomographic weak lensing cosmological parameter constraints: Mitigating the impact of intrinsic galaxy alignments    [PDF]

Catherine Heymans, Emma Grocutt, Alan Heavens, Martin Kilbinger, Thomas D. Kitching, Fergus Simpson, Jonathan Benjamin, Thomas Erben, Hendrik Hildebrandt, Henk Hoekstra, Yannick Mellier, Lance Miller, Ludovic Van Waerbeke, Michael L. Brown, Jean Coupon, Liping Fu, Joachim Harnois-Deraps, Michael J. Hudson, Konrad Kuijken, Barnaby Rowe, Tim Schrabback, Elisabetta Semboloni, Sanaz Vafaei, Malin Velander

We present a finely-binned tomographic weak lensing analysis of the Canada-France-Hawaii Telescope Lensing Survey, CFHTLenS, mitigating contamination to the signal from the presence of intrinsic galaxy alignments via the simultaneous fit of a cosmological model and an intrinsic alignment model. CFHTLenS spans 154 square degrees in five optical bands, with accurate shear and photometric redshifts for a galaxy sample with a median redshift of zm =0.70. We estimate the 21 sets of cosmic shear correlation functions associated with six redshift bins, each spanning the angular range of 1.5View original: http://arxiv.org/abs/1303.1808