60 citations · 219 across the 12 of their papers we have counts for
12 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…
Cosmological test of local position invariance from the asymmetric galaxy clustering
Shohei Saga, Atsushi Taruya, Michel-Andrès Breton +1
The local position invariance (LPI) is one of the three major pillars of Einstein equivalence principle, ensuring the space-time independence on the outcomes of local experiments.…
The RayGalGroupSims cosmological simulation suite for the study of relativistic effects: an application to lensing-matter clustering statistics
Y. Rasera, M-A. Breton, P-S. Corasaniti +8
General Relativistic effects on the clustering of matter in the universe provide a sensitive probe of cosmology and gravity theories that can be tested with the upcoming generation…
Magrathea-Pathfinder: A 3D adaptive-mesh code for geodesic ray tracing in -body simulations
Michel-Andrès Breton, Vincent Reverdy
We introduce Magrathea-Pathfinder, a relativistic ray-tracing framework that can reconstruct the past light cone of observers in cosmological simulations. The code directly compute…
Impact of lensing magnification on the analysis of galaxy clustering in redshift space
Michel-Andrès Breton, Sylvain de la Torre, Jade Piat
We study the impact of lensing magnification on the observed three-dimensional galaxy clustering in redshift space. We used the RayGal suite of N-body simulations, from which we ex…
Detectability of the gravitational redshift effect from the asymmetric galaxy clustering
Shohei Saga, Atsushi Taruya, Michel-Andrès Breton +1
It has been recently recognized that the observational relativistic effects, mainly arising from the light propagation in an inhomogeneous universe, induce the dipole asymmetry in…
Theoretical and numerical perspectives on cosmic distance averages
Michel-Andrès Breton, Pierre Fleury
The interpretation of cosmological observations relies on a notion of an average Universe, which is usually considered as the homogeneous and isotropic Friedmann-Lemaître-Robertson…
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…
Probing Cosmology with Dark Matter Halo Sparsity Using X-ray Cluster Mass Measurements
P. S. Corasaniti, S. Ettori, Y. Rasera +5
We present a new cosmological probe for galaxy clusters, the halo sparsity. This characterises halos in terms of the ratio of halo masses measured at two different radii and carrie…