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  1. B100 理学部/理学研究科
  2. B100a 雑誌掲載論文
  3. 学術雑誌

Resumming cosmological perturbations via the Lagrangian picture: One-loop results in real space and in redshift space

http://hdl.handle.net/2237/11312
http://hdl.handle.net/2237/11312
f1092df7-a970-481e-9c9a-790dec08155d
名前 / ファイル ライセンス アクション
PhysRevD_77_063530.pdf PhysRevD_77_063530.pdf (834.5 kB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2009-03-13
タイトル
タイトル Resumming cosmological perturbations via the Lagrangian picture: One-loop results in real space and in redshift space
言語 en
著者 Matsubara, Takahiko

× Matsubara, Takahiko

WEKO 27398

en Matsubara, Takahiko

Search repository
アクセス権
アクセス権 open access
アクセス権URI http://purl.org/coar/access_right/c_abf2
権利
言語 en
権利情報 American Physical Society, All rights reserved.
抄録
内容記述 We develop a new approach to study the nonlinear evolution in the large-scale structure of the Universe both in real space and in redshift space, extending the standard perturbation theory of gravitational instability. Infinite series of terms in standard Eulerian perturbation theory are resummed as a result of our starting from a Lagrangian description of perturbations. Delicate nonlinear effects on scales of the baryon acoustic oscillations are more accurately described by our method than the standard one. Our approach differs from other resummation techniques recently proposed, such as the renormalized perturbation theory, etc., in that we use simple techniques and thus resulting equations are undemanding to evaluate, and in that our approach is capable of quantifying the nonlinear effects in redshift space. The power spectrum and correlation function of our approach are in good agreement with numerical simulations in literature on scales of baryon acoustic oscillations. Especially, nonlinear effects on the baryon acoustic peak of the correlation function are accurately described both in real space and in redshift space. Our approach provides a unique opportunity to analytically investigate the nonlinear effects on baryon acoustic scales in observable redshift space, which is requisite in constraining the nature of dark energy, the curvature of the Universe, etc., by redshift surveys.
言語 en
内容記述タイプ Abstract
出版者
言語 en
出版者 American Physical Society
言語
言語 eng
資源タイプ
資源タイプresource http://purl.org/coar/resource_type/c_6501
タイプ journal article
出版タイプ
出版タイプ VoR
出版タイプResource http://purl.org/coar/version/c_970fb48d4fbd8a85
DOI
関連タイプ isVersionOf
識別子タイプ DOI
関連識別子 https://doi.org/10.1103/PhysRevD.77.063530
ISSN
収録物識別子タイプ PISSN
収録物識別子 1550-7998
書誌情報 en : PHYSICAL REVIEW D

巻 77, 号 6, p. 063530-063530, 発行日 2008-03
フォーマット
application/pdf
著者版フラグ
値 publisher
URI
識別子 http://hdl.handle.net/2237/11312
識別子タイプ HDL
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