activity
19932026
most citedMeasuring the cosmological constant with redshift surveys

377 citations · 3k across the 26 of their papers we have counts for

collaborators

27 papers

gr-qc2026

Three-dimensional wave optics for weak-field lensing of gravitational waves

Mariana Carrillo-González, Alan Heavens, Lorne Whiteway

We develop a perturbative Green's function approach to gravitational lensing by weak gravitational potentials that need not be localized on a thin lens plane and that applies in bo…

astro-ph.CO2016★ 32 cited

Unequal-Time Correlators for Cosmology

T. D. Kitching, A. F. Heavens

Measurements of the power spectrum from large-scale structure surveys have to date assumed an equal-time approximation, where the full cross-correlation power spectrum of the matte…

astro-ph.CO2011★ 15 cited

Simulating the Effect of Non-Linear Mode-Coupling in Cosmological Parameter Estimation

A. Kiessling, A. N. Taylor, A. F. Heavens

Fisher Information Matrix methods are commonly used in cosmology to estimate the accuracy that cosmological parameters can be measured with a given experiment, and to optimise the…

astro-ph.CO2010★ 54 cited

3D Photometric Cosmic Shear

T. D. Kitching, A. F. Heavens, L. Miller

Here we present a number of improvements to weak lensing 3D power spectrum analysis, 3D cosmic shear, that uses the shape and redshift information of every galaxy to constrain cosm…

astro-ph.CO2010★ 37 cited

Reducing sample variance: halo biasing, non-linearity and stochasticity

H. Gil-Marín, C. Wagner, L. Verde +2

Comparing clustering of differently biased tracers of the dark matter distribution offers the opportunity to reduce the cosmic variance error in the measurement of certain cosmolog…

astro-ph.CO2009★ 82 cited

A New Approach to Probing Primordial Non-Gaussianity

Dipak Munshi, Alan Heavens

We address the dual challenge of estimating deviations from Gaussianity arising in models of the Early Universe, whilst retaining information necessary to assess whether a detectio…