Matches in SemOpenAlex for { <https://semopenalex.org/work/W3154371345> ?p ?o ?g. }
- W3154371345 abstract "We update Halo Zeldovich Perturbation Theory (HZPT), an analytic model for the two-point statistics of dark matter, to describe halo and galaxy clustering, and galaxy-matter cross-correlation on nonlinear scales. The model correcting Zeldovich has an analytic Fourier transform, and therefore is valid in both configuration space and Fourier space. The model is accurate at the $2%$-level or less for $P_{mm}$ (k 1 Mpc/h), $xi_{hm}$ (r > 2 Mpc/h), $xi_{hh}$ (r > 2 Mpc/h), $xi_{gm}$ (r > 1 Mpc/h), $xi_{gg}$ (r > 2 Mpc/h), for LRG-like mock galaxies. We show that the HZPT model for matter correlators can account for the effects of a wide range of baryonic feedback models and provide extended dark matter models which are of $1% ~(3%)$ accuracy for k < 10 (8) h/Mpc. We explicitly model the non-perturbative features of halo exclusion for the halo-halo and galaxy-galaxy correlators, as well as the presence of satellites for galaxy-matter and galaxy-galaxy correlation functions. We perform density estimation using N-body simulations and a wide range of HOD galaxy mocks to obtain correlations of model parameters with the cosmological parameters $Omega_{m}$ and $sigma_{8}$. HZPT can provide a fast, interpretable, and analytic model for combined-probe analyses of redshift surveys using scales well into the non-linear regime." @default.
- W3154371345 created "2021-04-26" @default.
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- W3154371345 date "2021-04-21" @default.
- W3154371345 modified "2023-10-06" @default.
- W3154371345 title "An Analytic Hybrid Halo + Perturbation Theory Model for Small-scale Correlators: Baryons, Halos, and Galaxies" @default.
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