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Cited by 256

The DOI matches its Crossref record; 31 of the 31 references it cites were found in a registry or an index.

General relativistic description of the observed galaxy power spectrum: Do we understand what we measure?

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Yoo, Jaiyul·2010·Physical Review D
DOI 10.1103/physrevd.82.083508
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Abstract

We extend the general relativistic description of galaxy clustering developed in Yoo, Fitzpatrick, and Zaldarriaga (2009). For the first time we provide a fully general relativistic description of the observed matter power spectrum and the observed galaxy power spectrum with the linear bias ansatz. It is significantly different from the standard Newtonian description on large scales and especially its measurements on large scales can be misinterpreted as the detection of the primordial non-Gaussianity even in the absence thereof. The key difference in the observed galaxy power spectrum arises from the real-space matter fluctuation defined as the matter fluctuation at the hypersurface of the observed redshift. As opposed to the standard description, the shape of the observed galaxy power spectrum evolves in redshift, providing additional cosmological information. While the systematic errors in the standard Newtonian description are negligible in the current galaxy surveys at low redshift, correct general relativistic description is essential for understanding the galaxy power spectrum measurements on large scales in future surveys with redshift depth $z\ensuremath{\ge}3$. We discuss ways to improve the detection significance in the current galaxy surveys and comment on applications of our general relativistic formalism in future surveys.

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Metadata

Authors
Yoo, J.
Venue
Physical Review D
Publisher
American Physical Society (APS)
Published
2010-10-07
Volume
82
Issue
8
ISSN
  • 0556-2821 (ISSN-L)
  • 1550-7998
  • 1550-2368
DOI
10.1103/physrevd.82.083508
OpenAlex
W2116086589
Cited by
256
References
31
FWCI
8.21
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: General relativistic description of the observed galaxy power spectrum: Do we understand what we measure? https://app.cochat.ai/papers/10.1103/physrevd.82.083508
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Yoo, J. (2010). General relativistic description of the observed galaxy power spectrum: Do we understand what we measure? Physical Review D. https://doi.org/10.1103/physrevd.82.083508

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