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dc.contributor.authorTaruya, Atsushien
dc.contributor.authorNishimichi, Takahiroen
dc.contributor.authorJeong, Donghuien
dc.contributor.alternative樽家, 篤史ja
dc.contributor.alternative西道, 啓博ja
dc.date.accessioned2022-07-22T02:27:46Z-
dc.date.available2022-07-22T02:27:46Z-
dc.date.issued2022-05-
dc.identifier.urihttp://hdl.handle.net/2433/275443-
dc.description.abstractPerturbation theory (PT) has been used to interpret the observed nonlinear large-scale structure statistics in the quasilinear regime. To facilitate the PT-based analysis, we have presented the GridSPT algorithm, a grid-based method to compute the nonlinear density and velocity fields in standard perturbation theory (SPT) from a given linear power spectrum. Here, we expand on this approach by taking the redshift-space distortions into account. With the new implementation, we generate for the first time the redshift-space density field to the fifth order and computed the next-to-next-to-leading-order (two-loop) power spectrum and the next-to-leading-order (one-loop) bispectrum of matter clustering in redshift space. By comparing the result with the corresponding analytical SPT calculation and N-body simulations, we find that the SPT calculation (A) suffers much more from UV sensitivity due to the higher-derivative operators, and (B) deviates from the N-body results above the Fourier wave number smaller than real space k[max]. Finally, we show that while the Padé approximation removes spurious features in the morphology, it does not improve the modeling of the power spectrum and bispectrum.en
dc.language.isoeng-
dc.publisherAmerican Physical Society (APS)en
dc.rights© 2022 American Physical Societyen
dc.subjectLarge scale structure of the Universeen
dc.subjectAstronomical masses & mass distributionsen
dc.subjectAstrophysical & cosmological simulationsen
dc.subjectGravitation, Cosmology & Astrophysicsen
dc.titleGrid-based calculations of redshift-space matter fluctuations from perturbation theory: UV sensitivity and convergence at the field levelen
dc.typejournal article-
dc.type.niitypeJournal Article-
dc.identifier.jtitlePhysical Review Den
dc.identifier.volume105-
dc.identifier.issue10-
dc.relation.doi10.1103/PhysRevD.105.103507-
dc.textversionpublisher-
dc.identifier.artnum103507-
dcterms.accessRightsopen access-
datacite.awardNumber17H06359-
datacite.awardNumber17K14273-
datacite.awardNumber19H00677-
datacite.awardNumber20H05861-
datacite.awardNumber21H01081-
datacite.awardNumber.urihttps://kaken.nii.ac.jp/grant/KAKENHI-PLANNED-17H06359/-
datacite.awardNumber.urihttps://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-17K14273/-
datacite.awardNumber.urihttps://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-19H00677/-
datacite.awardNumber.urihttps://kaken.nii.ac.jp/grant/KAKENHI-PLANNED-20H05861/-
datacite.awardNumber.urihttps://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21H01081/-
dc.identifier.pissn2470-0010-
dc.identifier.eissn2470-0029-
jpcoar.funderName日本学術振興会ja
jpcoar.funderName日本学術振興会ja
jpcoar.funderName日本学術振興会ja
jpcoar.funderName日本学術振興会ja
jpcoar.funderName日本学術振興会ja
jpcoar.awardTitle重力波物理学・天文学における重力理論研究の新展開ja
jpcoar.awardTitle計算統計に立脚した宇宙論解析のための理論的基盤の開発ja
jpcoar.awardTitleすばる精密宇宙論によるダークマター、ダークエネルギーおよび背景重力波の究明ja
jpcoar.awardTitle宇宙構造形成理論から迫るダークマターja
jpcoar.awardTitle標準宇宙モデルの破れをあぶり出す大規模銀河サーベイの新奇観測プローブの開拓ja
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