21 citations · 76 across the 12 of their papers we have counts for
13 papers
Cosmography of the Sloan Basin of Attraction and Neighborhood
Daniel Pomarede, R. Brent Tully, Aurelien Valade +2
The Sloan Great Wall is a dominant structure that is relatively nearby. As well as evident in redshift survey maps, its presence is manifested in distortions to cosmic expansion. H…
Constraining cosmological simulations with peculiar velocities: a forward-modeling approach
Aurélien Valade, Noam Libeskind, Daniel Pomarède +4
Numerical simulations are a key tool to decipher the dynamics of gravitation. Yet, they fail to spatially reproduce the Universe we observe, limiting comparison between observation…
An effective -Szekeres modelling of the local Universe with Cosmicflows-4
Marco Galoppo, Leonardo Giani, Morag Hills +1
We develop an effective description of the local cosmic environment, namely, for redshift , to quantify the bias induced by local structure on cosmological observab…
Updates on dipolar anisotropy in local measurements of the Hubble constant from Cosmicflows-4
Vincenzo Salzano, J. Beltrán Jiménez, Dario Bettoni +2
We investigate the angular anisotropy of the Hubble constant using the Cosmicflows-4 catalogue, with particular emphasis on three issues often treated only implicitly in the litera…
Prior-free cosmological parameter estimation of Cosmicflows-4
C. Duangchan, A. Valade, N. I. Libeskind +1
As tracers of the underlying mass distributions, the peculiar velocities of galaxies are valuable probes of the Universe, allowing us to measure the Hubble constant or to map the l…
Forecast for growth-rate measurement using peculiar velocities from LSST supernovae
Damiano Rosselli, Bastien Carreres, Corentin Ravoux +8
In this work, we investigate the feasibility of measuring the cosmic growth-rate parameter, , using peculiar velocities (PVs) derived from Type Ia supernovae (SNe Ia) in the…
Modeling the Cosmic Dispersion Measure in the D < 120 Mpc Local Universe
Yuxin Huang, Khee-Gan Lee, Noam I. Libeskind +3
The Local Universe (D < 120 Mpc) has been intensely studied for decades, with highly complete galaxy redshift surveys now publicly available. These data have driven density reconst…
The large scale velocity field from the Cosmicflows-4 data
Yehuda Hoffman, Aurélien Valade, Noam I. Libeskind +5
The reconstruction of the large scale velocity field from the grouped Cosmicflows-4 (CF4) database is presented. The lognormal bias of the inferred distances and velocities data is…
A Local Universe model for constrained simulations
Simon Pfeifer, Aurélien Valade, Stefan Gottlöber +3
The aim of cosmological simulations is to reproduce the properties of the observed Universe, serving as tools to test structure and galaxy formation models. Constrained simulations…
Testing Bayesian reconstruction methods from peculiar velocities
Aurélien Valade, Noam I Libeskind, Yehuda Hoffman +1
Reconstructing the large scale density and velocity fields from surveys of galaxy distances, is a major challenge for cosmography. The data is very noisy and sparse. Estimated dist…
Hamiltonian Monte Carlo reconstruction from peculiar velocities
Aurélien Valade, Yehuda Hoffman, Noam I Libeskind +1
The problem of the reconstruction of the large scale density and velocity fields from peculiar velocities surveys is addressed here within a Bayesian framework by means of Hamilton…
From Cosmicflows distance moduli to unbiased distances and peculiar velocities
Yehuda Hoffman, Adi Nusser, Aurelien Valade +2
Surveys of galaxy distances and radial peculiar velocities can be used to reconstruct the large scale structure. Other than systematic errors in the zero-point calibration of the g…
Waves in the radiative zones of rotating, magnetized stars
Aurélien Valade, Vincent Prat, Stéphane Mathis +1
Asteroseismology has reached a level of accuracy that may allow us to detect the effect of a deep magnetic field on oscillation modes. We thus aim to develop an asymptotic theory f…