Journal
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Volume 499, Issue 4, Pages 4905-4917Publisher
OXFORD UNIV PRESS
DOI: 10.1093/mnras/staa3117
Keywords
cosmological parameters; large-scale structure of Universe
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Funding
- ERC [716151]
- Juan de la Cierva Formaci [RES-AECT-2019-2-0012, FJCI-2017-33816]
- European Research Council (ERC) [716151] Funding Source: European Research Council (ERC)
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Predicting the spatial distribution of objects as a function of cosmology is an essential ingredient for the exploitation of future galaxy surveys. In this paper, we show that a specially designed suite of gravity-only simulations together with cosmology-rescaling algorithms can provide the clustering of dark matter, haloes, and subhaloes with high precision. Specifically, with only three N-body simulations, we obtain the power spectrum of dark matter at z = 0 and 1 to better than 3 per cent precision for essentially all currently viable values of eight cosmological parameters, including massive neutrinos and dynamical dark energy, and over the whole range of scales explored, 0.03 < k/h(-1) Mpc(-1) < 5. This precision holds at the same level for mass-selected haloes and for subhaloes selected according to their peak maximum circular velocity. As an initial application of these predictions, we successfully constrain Omega(m), sigma(8), and the scatter in subhalo-abundance-matching employing the projected correlation function of mock SDSS galaxies.
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