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25 papers · 2 filters
Universal void density profiles from simulation and SDSS
S. Nadathur, S. Hotchkiss, J. M. Diego +4
We discuss the universality and self-similarity of void density profiles, for voids in realistic mock luminous red galaxy (LRG) catalogues from the Jubilee simulation, as well as i…
nIFTy Cosmology: Galaxy/halo mock catalogue comparison project on clustering statistics
Chia-Hsun Chuang, Cheng Zhao, Francisco Prada +21
We present a comparison of major methodologies of fast generating mock halo or galaxy catalogues. The comparison is done for two-point and the three-point clustering statistics. Th…
Cosmic flows and the expansion of the Local Universe from nonlinear phase-space reconstructions
Steffen Hess, Francisco-Shu Kitaura
This work investigates the impact of cosmic flows and density perturbations on Hubble constant measurements using nonlinear phase-space reconstructions of the Local Universe…
Hunting down systematics in baryon acoustic oscillations after cosmic high noon
Francisco Prada, Claudia G. Scoccola, Chia-Hsun Chuang +5
Future dark energy experiments will require better and more accurate theoretical predictions for the baryonic acoustic oscillations (BAO) signature in the spectrum of cosmological…
MultiDark simulations: the story of dark matter halo concentrations and density profiles
Anatoly Klypin, Gustavo Yepes, Stefan Gottlober +2
Accurately predicting structural properties of dark matter halos is one of the fundamental goals of modern cosmology. We use the new suite of MultiDark cosmological simulations to…
Cosmological implications of baryon acoustic oscillation (BAO) measurements
Éric Aubourg, Stephen Bailey, Julian E. Bautista +90
We derive constraints on cosmological parameters and tests of dark energy models from the combination of baryon acoustic oscillation (BAO) measurements with cosmic microwave backgr…