Pellejero-Ibanez, M.Balaguera-Antolinez, A.Kitaura, Francisco-ShuAngulo, Raul E.Yepes, GustavoChuang, Chia-HsunReyes-Peraza, GuillermoAutefage, MathieuVakili, MohammadjavadZhao, Cheng2020-03-252020-03-252020-03-252020-03-0110.1093/mnras/staa270https://infoscience.epfl.ch/handle/20.500.14299/167642WOS:000518156100041We present a comparison between approximated methods for the construction of mock catalogues based on the halo-bias mapping technique. To this end, we use as reference a high-resolution N-body simulation of 38403 dark matter particles on a 400 h(-1) Mpc cube box from the Multidark suite. In particular, we explore parametric versus non-parametric bias mapping approaches and compare them at reproducing the halo distribution in terms of the two- and three-point statistics down to similar to 10(8) M-circle dot h(-1) halo masses. Our findings demonstrate that the parametric approach remains inaccurate even including complex deterministic and stochastic components. On the contrary, the non-parametric one is indistinguishable from the reference N-body calculation in the power spectrum beyond k = h Mpc(-1), and in the bispectrum for typical configurations relevant to baryon acoustic oscillation analysis. We conclude that approaches which extract the full bias information from N-body simulations in a non-parametric fashion are ready for the analysis of the new generation of large-scale structure surveys.Astronomy & AstrophysicsAstronomy & Astrophysicslarge-scale structure of universecosmology: theoryoscillation spectroscopic surveymock galaxy catalogsperturbation-theoryredshift-spacebispectrumcosmologysimulationsgenerationluminositydependencetext::journal::journal article::research article