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

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

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. CFHT...

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Bibliographic Details
Main Authors: Heymans, C, Grocutt, E, Heavens, A, Kilbinger, M, Kitching, T, Simpson, F, Benjamin, J, Erben, T, Hildebrandt, H, Hoekstra, H, Mellier, Y, Miller, L, Waerbeke, L, Brown, M, Coupon, J, Fu, L, Harnois-Deraps, J, Hudson, M, Kuijken, K, Rowe, B, Schrabback, T, Semboloni, E, Vafaei, S, Velander, M
Format: Journal article
Language:English
Published: 2013
Description
Summary: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 1.5

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