1k citations · 15.5k across the 173 of their papers we have counts for
9 papers · 1 filter
Bayesian Galaxy Shape Measurement for Weak Lensing Surveys -II. Application to Simulations
T. D. Kitching, L. Miller, C. E. Heymans +2
We extend the Bayesian model fitting shape measurement method presented in Miller et al. (2007) and use the method to estimate the shear from the Shear TEsting Programme simulation…
Handbook for the GREAT08 Challenge: An image analysis competition for cosmological lensing
Sarah Bridle, John Shawe-Taylor, Adam Amara +35
The GRavitational lEnsing Accuracy Testing 2008 (GREAT08) Challenge focuses on a problem that is of crucial importance for future observations in cosmology. The shapes of distant g…
Finding Evidence for Massive Neutrinos using 3D Weak Lensing
T. D. Kitching, A. F. Heavens, L. Verde +2
In this paper we investigate the potential of 3D cosmic shear to constrain massive neutrino parameters. We find that if the total mass is substantial (near the upper limits from LS…
Systematic effects on dark energy from 3D weak shear
T. D. Kitching, A. N. Taylor, A. F. Heavens
We present an investigation into the potential effect of systematics inherent in multi-band wide field surveys on the dark energy equation of state determination for two 3D weak le…
Bayesian Galaxy Shape Measurement for Weak Lensing Surveys -I. Methodology and a Fast Fitting Algorithm
L. Miller, T. D. Kitching, C. Heymans +2
The principles of measuring the shapes of galaxies by a model-fitting approach are discussed in the context of shape-measurement for surveys of weak gravitational lensing. It is ar…
Cosmological constraints from COMBO-17 using 3D weak lensing
T. D. Kitching, A. F. Heavens, A. N. Taylor +5
We present the first application of the 3D cosmic shear method developed in Heavens et al. (2006) and the geometric shear-ratio analysis developed in Taylor et al. (2006), to the C…
Measuring dark energy properties with 3D cosmic shear
A. F. Heavens, T. D. Kitching, A. N. Taylor
We present parameter estimation forecasts for present and future 3D cosmic shear surveys. We demonstrate that, in conjunction with results from cosmic microwave background (CMB) ex…
Probing dark energy with the shear-ratio geometric test
A. N. Taylor, T. D. Kitching, D. J. Bacon +1
We adapt the Jain--Taylor (2003) shear-ratio geometric lensing method to measure the dark energy equation of state, and its time derivative from dark matter haloes in cosmologies w…
Weak lensing analysis in three dimensions
P. G. Castro, A. F. Heavens, T. D. Kitching
We present a comprehensive full-sky 3-dimensional analysis of the weak-lensing fields and their corresponding power spectra. Using the formalism of spin-weight spherical harmonics…