695 citations · 7k across the 122 of their papers we have counts for
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Multipoles of the relativistic galaxy bispectrum
Eline M. de Weerd, Chris Clarkson, Sheean Jolicoeur +2
Above the equality scale the galaxy bispectrum will be a key probe for measuring primordial non-Gaussianity which can help differentiate between different inflationary models and o…
Detecting the relativistic galaxy bispectrum
Roy Maartens, Sheean Jolicoeur, Obinna Umeh +3
The Fourier-space galaxy bispectrum is complex, with the imaginary part arising from leading-order relativistic corrections, due to Doppler, gravitational redshift and related line…
Multi-Scale Perturbation Theory I: Methodology and Leading-Order Bispectrum Corrections in the Matter-Dominated Era
Christopher Gallagher, Timothy Clifton, Chris Clarkson
Two-parameter perturbation theory is a scheme tailor-made to consistently include nonlinear density contrasts on small scales (), whilst retaining a traditiona…
A null test to probe the scale-dependence of the growth of structure as a test of General Relativity
Felipe Oliveira Franco, Camille Bonvin, Chris Clarkson
The main science driver for the coming generation of cosmological surveys is understanding dark energy which relies on testing General Relativity on the largest scales. Once we mov…
Recursion relations for gravitational lensing
Ben David Normann, Chris Clarkson
The weak gravitational lensing formalism can be extended to the strong lensing regime by integrating a nonlinear version of the geodesic deviation equation. The resulting "roulette…
Probing beyond-Horndeski gravity on ultra-large scales
Didam Duniya, Teboho Moloi, Chris Clarkson +4
The beyond-Horndeski gravity has recently been reformulated in the dark energy paradigm - which has been dubbed, Unified Dark Energy (UDE). The evolution equations for the given UD…