Lee Whittaker
University of Manchester
8 Papers
23 Citations
Lee Whittaker is an academic researcher from University of Manchester. The author has contributed to research in topics: Weak gravitational lensing & Dark matter. The author has an hindex of 5, co-authored 8 publications.
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Papers
SuperCLASS – III. Weak lensing from radio and optical observations in Data Release 1
Ian Harrison,Michael L. Brown,Ben Tunbridge,Daniel Thomas,Tom Hillier,Alasdair Thomson,Lee Whittaker,Filipe B. Abdalla,Richard A. Battye,Anna Bonaldi,Stefano Camera,Caitlin M. Casey,C. Demetroullas,Christopher A. Hales,Christopher A. Hales,Neal Jackson,Scott T. Kay,Sinclaire M. Manning,Aaron Peters,C. J. Riseley,C. J. Riseley,Robert A. Watson +21 more
TL;DR: In this article, the authors describe the first results on weak gravitational lensing from the SuperCLASS survey: the first survey specifically designed to measure the weak lensing effect in radio-wavelength data, both alone and in cross-correlation with optical data.
17
Separating weak lensing and intrinsic alignments using radio observations
TL;DR: In this article, a proxy for the intrinsic position angle of an observed galaxy is used to cleanly separate weak gravitational lensing signals from intrinsic alignment contamination in forthcoming radio surveys, which can be used to construct galaxy velocity maps and polarized synchrotron radiation.
16
Weak lensing using only galaxy position angles
TL;DR: In this paper, the authors developed a method for performing weak lensing analysis using only measurements of galaxy position angles, which can be used to obtain estimates of the shear by minimizing a χ 2 statistic.
14
A demonstration of position angle-only weak lensing shear estimators on the GREAT3 simulations
TL;DR: In this article, the authors developed and applied the position angle-only shear estimator of Whittaker et al. (2014) to realistic galaxy images and demonstrated the method on the simulations of the GREAT3 challenge, which include contributions from anisotropic PSFs.
10
SuperCLASS – I. The super cluster assisted shear survey: Project overview and data release 1
Richard A. Battye,Michael L. Brown,Caitlin M. Casey,Ian Harrison,Neal Jackson,Ian Smail,Robert A. Watson,Christopher A. Hales,Christopher A. Hales,Sinclaire M. Manning,Chao-Ling Hung,C. J. Riseley,C. J. Riseley,Filipe B. Abdalla,Mark Birkinshaw,C. Demetroullas,Scott Chapman,Robert Beswick,T. W. B. Muxlow,Anna Bonaldi,Stefano Camera,Tom Hillier,Scott T. Kay,Aaron Peters,David B. Sanders,Daniel Thomas,Alasdair Thomson,Ben Tunbridge,Lee Whittaker +28 more
TL;DR: The SuperCLuster Assisted Shear Survey (SuperCLASS) as mentioned in this paper is a legacy project using the e-MERLIN interferometric array to detect the effects of weak lensing in the radio in preparation for similar measurements with the SKA.