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CFHTLenS tomographic weak lensing cosmological parameter constraints: Mitigating the impact of intrinsic galaxy alignments
Authors
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,M. Kilbinger,Thomas Kitching,J. Benjamin,T. Erben,H. Hildebrandt,Y. Mellier,L. Miller,J. Coupon,Michael Brown,Joachim Harnois-Déraps,Michael Hudson,T. Schrabback,E. Semboloni
+35 authors
,M. VelanderPublished
May 9, 2013
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Abstract
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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