The Zeldovich approximation and wide-angle redshift-space distortions

Castorina, Emanuele; White, Martin

doi:10.1093/mnras/sty1437

Title: The Zeldovich approximation and wide-angle redshift-space distortions

Abstract

The contribution of line-of-sight (LOS) peculiar velocities to the observed redshift of objects breaks the translational symmetry of the underlying theory, modifying the predicted two-point functions. These `wide-angle effects' have mostly been studied using linear perturbation theory in the context of the multipoles of the correlation function and power spectrum. In this article, we present the first calculation of wide-angle terms in the Zeldovich approximation, which is known to be more accurate than linear theory on scales probed by the next generation of galaxy surveys. We present the exact result for dark matter and perturbatively biased tracers as well as the small angle expansion of the configuration- and Fourier-space two-point functions and the connection to the multifrequency angular power spectrum. We compare different definitions of the LOS direction and discuss how to translate between them. Lastly, we show that wide-angle terms can reach tens of percent of the total signal in a measurement at low redshift in some approximations, and that a generic feature of wide-angle effects is to slightly shift the Baryon Acoustic Oscillation scale.

Authors:

Castorina, Emanuele ^[1];

^[1]

Univ. of California, Berkeley, CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)

Publication Date:: Tue Jun 05 00:00:00 EDT 2018

Research Org.:: Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Univ. of California, Berkeley, CA (United States)

Sponsoring Org.:: USDOE Office of Science (SC), High Energy Physics (HEP); National Science Foundation (NSF)

OSTI Identifier:: 1530372

Alternate Identifier(s):: OSTI ID: 1594732

Grant/Contract Number:: AC02-05CH11231; SC0017860; 1713791

Resource Type:: Accepted Manuscript

Journal Name:: Monthly Notices of the Royal Astronomical Society

Additional Journal Information:: Journal Volume: 479; Journal Issue: 1; Journal ID: ISSN 0035-8711

Publisher:: Royal Astronomical Society

Country of Publication:: United States

Language:: English

Subject:: 79 ASTRONOMY AND ASTROPHYSICS; methods: analytical; cosmology: observations; cosmology: theory

Citation Formats


                    Castorina, Emanuele, and White, Martin. The Zeldovich approximation and wide-angle redshift-space distortions.  United States: N. p., 2018. 
Web.  doi:10.1093/mnras/sty1437.

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                    Castorina, Emanuele, & White, Martin. The Zeldovich approximation and wide-angle redshift-space distortions.  United States.  https://doi.org/10.1093/mnras/sty1437

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                    Castorina, Emanuele, and White, Martin. Tue .  
"The Zeldovich approximation and wide-angle redshift-space distortions".  United States.  https://doi.org/10.1093/mnras/sty1437.  https://www.osti.gov/servlets/purl/1530372.

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@article{osti_1530372,

  title        = {The Zeldovich approximation and wide-angle redshift-space distortions},

  author       = {Castorina, Emanuele and White, Martin},

  abstractNote = {The contribution of line-of-sight (LOS) peculiar velocities to the observed redshift of objects breaks the translational symmetry of the underlying theory, modifying the predicted two-point functions. These `wide-angle effects' have mostly been studied using linear perturbation theory in the context of the multipoles of the correlation function and power spectrum. In this article, we present the first calculation of wide-angle terms in the Zeldovich approximation, which is known to be more accurate than linear theory on scales probed by the next generation of galaxy surveys. We present the exact result for dark matter and perturbatively biased tracers as well as the small angle expansion of the configuration- and Fourier-space two-point functions and the connection to the multifrequency angular power spectrum. We compare different definitions of the LOS direction and discuss how to translate between them. Lastly, we show that wide-angle terms can reach tens of percent of the total signal in a measurement at low redshift in some approximations, and that a generic feature of wide-angle effects is to slightly shift the Baryon Acoustic Oscillation scale.},

  doi          = {10.1093/mnras/sty1437},

  journal      = {Monthly Notices of the Royal Astronomical Society},

  number       = 1,

  volume       = 479,

  place        = {United States},

  year         = {Tue Jun 05 00:00:00 EDT 2018},

  month        = {Tue Jun 05 00:00:00 EDT 2018}

}

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https://doi.org/10.1093/mnras/sty1437

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Cited by: 25 works

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Figures / Tables:

Figure 1: The assumed geometry and angles. The two galaxies lie at s₁ and s₂, with separation vector s = s₁ − s₂ and enclosed angle θ. We take the line of sight to be parallel to the angle bisector, d, which divides s into parts of lengths st andmore »

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Works referencing / citing this record:

The reconstructed power spectrum in the Zeldovich approximation
journal, September 2019

Chen, Shi-Fan; Vlah, Zvonimir; White, Martin
Journal of Cosmology and Astroparticle Physics, Vol. 2019, Issue 09
DOI: 10.1088/1475-7516/2019/09/017

Erratum: The Zeldovich approximation and wide-angle redshift-space distortions
journal, September 2019

Castorina, Emanuele; White, Martin
Monthly Notices of the Royal Astronomical Society, Vol. 490, Issue 2
DOI: 10.1093/mnras/stz2541

Wide-angle redshift-space distortions at quasi-linear scales: cross-correlation functions from Zel’dovich approximation
journal, November 2019

Taruya, Atsushi; Saga, Shohei; Breton, Michel-Andrès
Monthly Notices of the Royal Astronomical Society, Vol. 491, Issue 3
DOI: 10.1093/mnras/stz3272

Ingredients for 21 cm Intensity Mapping
journal, October 2018

Villaescusa-Navarro, Francisco; Genel, Shy; Castorina, Emanuele
The Astrophysical Journal, Vol. 866, Issue 2
DOI: 10.3847/1538-4357/aadba0

Ingredients for 21cm intensity mapping
text, January 2018

Villaescusa-Navarro, Francisco; Genel, Shy; Castorina, Emanuele
arXiv
DOI: 10.48550/arxiv.1804.09180

Unequal time correlators and the Zeldovich approximation
text, January 2019

Chisari, Nora Elisa; Pontzen, Andrew
arXiv
DOI: 10.48550/arxiv.1905.02078

The Reconstructed Power Spectrum in the Zeldovich Approximation
text, January 2019

Chen, Shi-Fan; Vlah, Zvonimir; White, Martin
arXiv
DOI: 10.48550/arxiv.1907.00043

Wide-angle redshift-space distortions at quasi-linear scales: cross-correlation functions from Zel'dovich approximation
text, January 2019

Taruya, Atsushi; Saga, Shohei; Breton, Michel-Andrès
arXiv
DOI: 10.48550/arxiv.1908.03854

Figures / Tables found in this record:

Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.

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Journal Article Castorina, Emanuele ; White, Martin - Monthly Notices of the Royal Astronomical Society

This is an erratum to the paper ‘The Zeldovich approximation and wide-angle redshift-space distortions’ by Castorina & White (2018).
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Similar Records

Title: The Zeldovich approximation and wide-angle redshift-space distortions

Abstract

Citation Formats

Figures / Tables:

The reconstructed power spectrum in the Zeldovich approximation journal, September 2019

Erratum: The Zeldovich approximation and wide-angle redshift-space distortions journal, September 2019

Wide-angle redshift-space distortions at quasi-linear scales: cross-correlation functions from Zel’dovich approximation journal, November 2019

Ingredients for 21 cm Intensity Mapping journal, October 2018

Ingredients for 21cm intensity mapping text, January 2018

Unequal time correlators and the Zeldovich approximation text, January 2019

The Reconstructed Power Spectrum in the Zeldovich Approximation text, January 2019

Wide-angle redshift-space distortions at quasi-linear scales: cross-correlation functions from Zel'dovich approximation text, January 2019

The reconstructed power spectrum in the Zeldovich approximation
journal, September 2019

Erratum: The Zeldovich approximation and wide-angle redshift-space distortions
journal, September 2019

Wide-angle redshift-space distortions at quasi-linear scales: cross-correlation functions from Zel’dovich approximation
journal, November 2019

Ingredients for 21 cm Intensity Mapping
journal, October 2018

Ingredients for 21cm intensity mapping
text, January 2018

Unequal time correlators and the Zeldovich approximation
text, January 2019

The Reconstructed Power Spectrum in the Zeldovich Approximation
text, January 2019

Wide-angle redshift-space distortions at quasi-linear scales: cross-correlation functions from Zel'dovich approximation
text, January 2019