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Cited by 455

The DOI matches its Crossref record; 82 of the 82 references it cites were found in a registry or an index.

On the Robustness of the Acoustic Scale in the Low‐Redshift Clustering of Matter

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Eisenstein, Daniel J., Seo, Hee‐Jong, White, Martin·2007·The Astrophysical Journal

Abstract

We discuss the effects of nonlinear structure formation on the signature of acoustic oscillations in the late-time galaxy distribution. We argue that the dominant nonlinear effect is the differential motion of pairs of tracers separated by 150 Mpc. These motions are driven by bulk flows and cluster formation and are much smaller than the acoustic scale itself. We present a model for the nonlinear evolution based on the distribution of pairwise Lagrangian displacements that provides a quantitative model for the degradation of the acoustic signature, even for biased tracers in redshift space. The Lagrangian displacement distribution can be calibrated with a significantly smaller set of simulations than would be needed to construct a precise power spectrum. By connecting the acoustic signature in the Fourier basis with that in the configuration basis, we show that the acoustic signature is more robust than the usual Fourier-space intuition would suggest, because the beat frequency between the peaks and troughs of the acoustic oscillations is a very small wavenumber that is well inside the linear regime. We argue that any possible shift of the acoustic scale is related to infall on a scale of 150 Mpc, which is O (0.5%) fractionally at first order, even at z = 0. For the matter, there is a first-order cancellation such that the mean shift is O (10 -4 ). However, galaxy bias can circumvent this cancellation and produce a subpercent systematic bias.

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Metadata

Authors
Eisenstein, D. J., Seo, H., & White, M.
Venue
The Astrophysical Journal
Published
2007-08
Volume
664
Issue
2
Pages
660-674
ISSN
  • 0004-637X (ISSN-L)
  • 1538-4357
OpenAlex
W2107742863
Cited by
455
References
82
FWCI
11.88
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: On the Robustness of the Acoustic Scale in the Low‐Redshift Clustering of Matter. https://app.cochat.ai/papers/10.1086/518755
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Eisenstein, D. J., Seo, H., & White, M. (2007). On the Robustness of the Acoustic Scale in the Low‐Redshift Clustering of Matter. The Astrophysical Journal. https://doi.org/10.1086/518755

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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