Publications

Cosmological model parameter dependence of the matter power spectrum covariance from the DEUS-PUR Cosmo simulations

Future galaxy surveys will provide accurate measurements of the matter power spectrum across an unprecedented range of scales and …
DOI

Euclid: Reconstruction of weak-lensing mass maps for non-Gaussianity studies

Weak lensing, which is the deflection of light by matter along the line of sight, has proven to be an efficient method for constraining …
DOI

Euclid preparation: II. The EuclidEmulator -- A tool to compute the cosmology dependence of the nonlinear matter power spectrum

We present a new power spectrum emulator named EuclidEmulator that estimates the nonlinear correction to the linear dark matter power …
PDF

Comparing approximate methods for mock catalogues and covariance matrices III: Bispectrum

We compare the measurements of the bispectrum and the estimate of its covariance obtained from a set of different methods for the …
PDF

Comparing approximate methods for mock catalogues and covariance matrices II: Power spectrum multipoles

We study the accuracy of several approximate methods for gravitational dynamics in terms of halo power spectrum multipoles and their …
PDF

Comparing approximate methods for mock catalogues and covariance matrices I: correlation function

This paper is the first in a set that analyses the covariance matrices of clustering statistics obtained from several approximate …
PDF

The modified gravity lightcone simulation project I: Statistics of matter and halo distributions

We introduce a set of four very high resolution cosmological simulations for exploring f ( R ) f(R) -gravity, with 2048 3 2048^3 …
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Assessment of the Information Content of the Power Spectrum and Bispectrum

The covariance matrix of the matter and halo power spectrum and bispectrum are studied. Using a large suite of simulations, we find …
PDF

Non-Linear Matter Power Spectrum Covariance Matrix Errors and Cosmological Parameter Uncertainties

The covariance matrix of the matter power spectrum is a key element of the statistical analysis of galaxy clustering data. Independent …
PDF Code Dataset

Matter Power Spectrum Covariance Matrix from the DEUS-PUR ΛCDM simulations: Mass Resolution and non-Gaussian Errors

The upcoming generation of galaxy surveys will probe the distribution of matter in the universe with unprecedented accuracy. …
PDF Code Dataset