5 papers
PySCo-EFT and ECOSMOG-EFT: a tandem of N-body simulation codes for the Effective Field Theory of Dark Energy
Himanish Ganjoo, Yann Rasera, Emilio Bellini +18
Modified gravity theories constitute viable alternatives to the standard cosmological model for explaining the observed late-time accelerated expansion of the Universe. The Effecti…
Fast analytical calculation of the random pair counts for realistic survey geometry
Michel-Andrès Breton, Sylvain de la Torre
Galaxy clustering is a standard cosmological probe that is commonly analysed through two-point statistics. In observations, the estimation of the two-point correlation function cru…
Modelling the asymmetry of the halo cross-correlation function with relativistic effects at quasi-linear scales
Shohei Saga, Atsushi Taruya, Michel-Andrès Breton +1
The observed galaxy distribution via galaxy redshift surveys appears distorted due to redshift-space distortions (RSD). While one dominant contribution to RSD comes from the Dopple…
Wide-angle redshift-space distortions at quasi-linear scales: cross-correlation functions from Zel'dovich approximation
Atsushi Taruya, Shohei Saga, Michel-Andrès Breton +2
Redshift-space distortions (RSD) in galaxy redshift surveys generally break both the isotropy and homogeneity of galaxy distribution. While the former aspect is particularly highli…
Imprints of relativistic effects on the asymmetry of the halo cross-correlation function: from linear to non-linear scales
Michel-Andrès Breton, Yann Rasera, Atsushi Taruya +2
The apparent distribution of large-scale structures in the universe is sensitive to the velocity/potential of the sources as well as the potential along the line-of-sight through t…