168 citations · 876 across the 28 of their papers we have counts for
25 papers · 1 filter
Euclid preparation. CIV. Impact of galaxy intrinsic alignment modelling choices on Euclid 3x2pt cosmology
Euclid Collaboration, D. Navarro-Gironés, I. Tutusaus +274
The Euclid galaxy survey will provide unprecedented constraints on cosmology, but achieving unbiased results will require an optimal characterisation and mitigation of systematic e…
Comparing cosmic shear nulling methods for Stage-IV surveys
Naomi Clare Robertson, Alex Hall
We present an analysis comparing nulling strategies for reducing the impact of baryon feedback on cosmic shear measurements. We consider three different approaches which aim to `nu…
Shot noise in clustering power spectra
Nicolas Tessore, Alex Hall
We show that the `shot noise' bias in angular clustering power spectra observed from discrete samples of points is not noise, but rather a known additive contribution that naturall…
Confronting primordial black holes with LIGO-Virgo-KAGRA and the Einstein Telescope
Zu-Cheng Chen, Alex Hall
The detection of gravitational waves (GWs) from binary black hole (BBH) coalescences by the LIGO-Virgo-KAGRA (LVK) Collaboration has raised fundamental questions about the genesis…
Euclid preparation: XXVIII. Modelling of the weak lensing angular power spectrum
Euclid Collaboration, A. C. Deshpande, T. Kitching +200
This work considers which higher-order effects in modelling the cosmic shear angular power spectra must be taken into account for Euclid. We identify which terms are of concern, an…
Testing Quadratic Maximum Likelihood estimators for forthcoming Stage-IV weak lensing surveys
Alessandro Maraio, Alex Hall, Andy Taylor
Headline constraints on cosmological parameters from current weak lensing surveys are derived from two-point statistics that are known to be statistically sub-optimal, even in the…