695 citations · 7k across the 122 of their papers we have counts for
8 papers · 1 filter
Testing Homogeneity with Galaxy Star Formation Histories
Ben Hoyle, Rita Tojeiro, Raul Jimenez +3
Observationally confirming spatial homogeneity on sufficiently large cosmological scales is of importance to test one of the underpinning assumptions of cosmology, and is also impe…
Testing the Copernican principle by constraining spatial homogeneity
Wessel Valkenburg, Valerio Marra, Chris Clarkson
We present a new programme for placing constraints on radial inhomogeneity in a dark-energy dominated universe. We introduce a new measure to quantify violations of the Copernican…
Anti-lensing: the bright side of voids
Krzysztof Bolejko, Chris Clarkson, Roy Maartens +3
More than half of the volume of our Universe is occupied by cosmic voids. The lensing magnification effect from those under-dense regions is generally thought to give a small dimmi…
Nonlinear relativistic corrections to cosmological distances, redshift and gravitational lensing magnification. I - Key results
Obinna Umeh, Chris Clarkson, Roy Maartens
The next generation of telescopes will usher in an era of precision cosmology, capable of determining the cosmological model to beyond the percent level. For this to be effective,…
Galaxy correlations and the BAO in a void universe: structure formation as a test of the Copernican Principle
Sean February, Chris Clarkson, Roy Maartens
A suggested solution to the dark energy problem is the void model, where accelerated expansion is replaced by Hubble-scale inhomogeneity. In these models, density perturbations gro…
Reconstruction of dark energy and expansion dynamics using Gaussian processes
Marina Seikel, Chris Clarkson, Mathew Smith
An important issue in cosmology is reconstructing the effective dark energy equation of state directly from observations. With few physically motivated models, future dark energy s…