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- W3105881312 endingPage "062" @default.
- W3105881312 startingPage "062" @default.
- W3105881312 abstract "The peculiar velocities of biased tracers of the cosmic density field contain important information about the growth of large scale structure and generate anisotropy in the observed clustering of galaxies. Using N-body data, we show that velocity expansions for halo redshift-space power spectra are converged at the percent-level at perturbative scales for most line-of-sight angles $mu$ when the first three pairwise velocity moments are included, and that the third moment is well-approximated by a counterterm-like contribution. We compute these pairwise-velocity statistics in Fourier space using both Eulerian and Lagrangian one-loop perturbation theory using a cubic bias scheme and a complete set of counterterms and stochastic contributions. We compare the models and show that our models fit both real-space velocity statistics and redshift-space power spectra for both halos and a mock sample of galaxies at sub-percent level on perturbative scales using consistent sets of parameters, making them appealing choices for the upcoming era of spectroscopic, peculiar-velocity and kSZ surveys." @default.
- W3105881312 created "2020-11-23" @default.
- W3105881312 creator A5029091681 @default.
- W3105881312 creator A5044703523 @default.
- W3105881312 creator A5065077728 @default.
- W3105881312 date "2020-07-29" @default.
- W3105881312 modified "2023-09-24" @default.
- W3105881312 title "Consistent modeling of velocity statistics and redshift-space distortions in one-loop perturbation theory" @default.
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- W3105881312 doi "https://doi.org/10.1088/1475-7516/2020/07/062" @default.