2024-03-29T10:06:04Z
https://nagoya.repo.nii.ac.jp/oai
oai:nagoya.repo.nii.ac.jp:00022739
2023-01-16T04:59:26Z
336:695:696
Impacts of biasing schemes in the one-loop integrated perturbation theory
Matsubara, Takahiko
Desjacques, Vincent
open access
©2016 American Physical Society
The impact of biasing schemes on the clustering of tracers of the large-scale structure is analytically studied in the weakly nonlinear regime. For this purpose, we use the one-loop approximation of the integrated perturbation theory together with the renormalized bias functions of various, physically motivated Lagrangian bias schemes. These include the halo, peaks, and excursion set peaks model, for which we derive useful formulas for the evaluation of their renormalized bias functions. The shapes of the power spectra and correlation functions are affected by the different bias models at the level of a few percent on weakly nonlinear scales. These effects are studied quantitatively both in real and redshift space. The amplitude of the scale-dependent bias in the presence of primordial non-Gaussianity also depends on the details of the bias models. If left unaccounted for, these theoretical uncertainties could affect the robustness of the cosmological constraints extracted from galaxy clustering data.
American Physical Society
2016-06
eng
journal article
VoR
http://hdl.handle.net/2237/24894
https://nagoya.repo.nii.ac.jp/records/22739
https://doi.org/10.1103/PhysRevD.93.123522
2470-0010
Physical Review D
93
123522
123522
https://nagoya.repo.nii.ac.jp/record/22739/files/PhysRevD_93_123522.pdf
application/pdf
919.0 kB
2018-02-22