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Perturbation theory for the redshift-space matter power spectra after reconstruction

Research output: Contribution to journalArticlepeer-review

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Perturbation theory for the redshift-space matter power spectra after reconstruction. / Hikage, Chiaki; Koyama, Kazuya; Takahashi, Ryuichi.

In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 101, No. 4, 043510, 10.02.2020.

Research output: Contribution to journalArticlepeer-review

Harvard

Hikage, C, Koyama, K & Takahashi, R 2020, 'Perturbation theory for the redshift-space matter power spectra after reconstruction', Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 101, no. 4, 043510. https://doi.org/10.1103/PhysRevD.101.043510

APA

Hikage, C., Koyama, K., & Takahashi, R. (2020). Perturbation theory for the redshift-space matter power spectra after reconstruction. Physical Review D - Particles, Fields, Gravitation and Cosmology, 101(4), [043510]. https://doi.org/10.1103/PhysRevD.101.043510

Vancouver

Hikage C, Koyama K, Takahashi R. Perturbation theory for the redshift-space matter power spectra after reconstruction. Physical Review D - Particles, Fields, Gravitation and Cosmology. 2020 Feb 10;101(4). 043510. https://doi.org/10.1103/PhysRevD.101.043510

Author

Hikage, Chiaki ; Koyama, Kazuya ; Takahashi, Ryuichi. / Perturbation theory for the redshift-space matter power spectra after reconstruction. In: Physical Review D - Particles, Fields, Gravitation and Cosmology. 2020 ; Vol. 101, No. 4.

Bibtex

@article{097b0129d9214ea2a362cdfb4bb0e8cb,
title = "Perturbation theory for the redshift-space matter power spectra after reconstruction",
abstract = "We derive the one-loop perturbative formula of the redshift-space matter power spectrum after density field reconstruction in the Zeldovich approximation. We find that the reconstruction reduces the amplitudes of nonlinear one-loop perturbative terms significantly by partially erasing the nonlinear mode-coupling between density and velocity fields. In comparison with N-body simulations, we find that both the monopole and quadrupole spectra of reconstructed matter density fields agree with the one-loop perturbation theory up to higher wavenumber than those before reconstruction. We also evaluate the impact on cosmic growth rate assuming the survey volume and the number density like the Baryon Oscillation Spectroscopic Survey and find that the total error, including statistical and systematic ones due to one-loop approximation, decreases by half. ",
keywords = "astro-ph.CO, RCUK, STFC, ST/N000668/1, ST/S000550/1",
author = "Chiaki Hikage and Kazuya Koyama and Ryuichi Takahashi",
year = "2020",
month = feb,
day = "10",
doi = "10.1103/PhysRevD.101.043510",
language = "English",
volume = "101",
journal = "Physical Review D",
issn = "1550-7998",
publisher = "American Institute of Physics Publising LLC",
number = "4",

}

RIS

TY - JOUR

T1 - Perturbation theory for the redshift-space matter power spectra after reconstruction

AU - Hikage, Chiaki

AU - Koyama, Kazuya

AU - Takahashi, Ryuichi

PY - 2020/2/10

Y1 - 2020/2/10

N2 - We derive the one-loop perturbative formula of the redshift-space matter power spectrum after density field reconstruction in the Zeldovich approximation. We find that the reconstruction reduces the amplitudes of nonlinear one-loop perturbative terms significantly by partially erasing the nonlinear mode-coupling between density and velocity fields. In comparison with N-body simulations, we find that both the monopole and quadrupole spectra of reconstructed matter density fields agree with the one-loop perturbation theory up to higher wavenumber than those before reconstruction. We also evaluate the impact on cosmic growth rate assuming the survey volume and the number density like the Baryon Oscillation Spectroscopic Survey and find that the total error, including statistical and systematic ones due to one-loop approximation, decreases by half.

AB - We derive the one-loop perturbative formula of the redshift-space matter power spectrum after density field reconstruction in the Zeldovich approximation. We find that the reconstruction reduces the amplitudes of nonlinear one-loop perturbative terms significantly by partially erasing the nonlinear mode-coupling between density and velocity fields. In comparison with N-body simulations, we find that both the monopole and quadrupole spectra of reconstructed matter density fields agree with the one-loop perturbation theory up to higher wavenumber than those before reconstruction. We also evaluate the impact on cosmic growth rate assuming the survey volume and the number density like the Baryon Oscillation Spectroscopic Survey and find that the total error, including statistical and systematic ones due to one-loop approximation, decreases by half.

KW - astro-ph.CO

KW - RCUK

KW - STFC

KW - ST/N000668/1

KW - ST/S000550/1

U2 - 10.1103/PhysRevD.101.043510

DO - 10.1103/PhysRevD.101.043510

M3 - Article

VL - 101

JO - Physical Review D

JF - Physical Review D

SN - 1550-7998

IS - 4

M1 - 043510

ER -

ID: 18226586