A Perturbative Approach to the Redshift Space Power Spectrum: Beyond the Standard Model

Abstract

We develop a code to produce the power spectrum in redshift space based on standard perturbation theory (SPT) at 1-loop order. The code can be applied to a wide range of modified gravity and dark energy models using a recently proposed numerical method by A.Taruya. This includes Horndeski's theory with a general potential, which accommodates both chameleon and Vainshtein screening mechanisms and provides a non-linear extension of the effective theory of dark energy up to third order. Focus is on a recent non-linear model of the redshift space power spectrum which has been shown to model the anisotropy very well at relevant scales for the SPT framework, as well as capturing relevant non-linear effects typical of modified gravity theories. We provide consistency checks of the code against established results and elucidate it's application within the light of upcoming high precision RSD data.

23 pages, 23 figures, accepted for publication in JCAP

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Cited by in corpus (56)

• Tests of Chameleon Gravity
• Galileon Gravity in Light of ISW, CMB, BAO and $H_0$ data
• On the road to percent accuracy: nonlinear reaction of the matter power spectrum to dark energy and modified gravity
• COLA with scale-dependent growth: applications to screened modified gravity models
• The Novel Probes Project -- Tests of Gravity on Astrophysical Scales
• FAST-PT II: an algorithm to calculate convolution integrals of general tensor quantities in cosmological perturbation theory
• Testing the theory of gravity with DESI: estimators, predictions and simulation requirements
• On the road to percent accuracy IV: ReACT -- computing the non-linear power spectrum beyond $\Lambda$CDM
• Dark Energy and Modified Gravity in the Effective Field Theory of Large-Scale Structure
• Towards Precision Constraints on Gravity with the Effective Field Theory of Large-Scale Structure
• GridSPT: Grid-based calculation for perturbation theory of large-scale structure
• COLA with massive neutrinos
• Accurate fitting functions for peculiar velocity spectra in standard and massive-neutrino cosmologies
• Modeling CMB Lensing Cross Correlations with {\sc CLEFT}
• Lagrangian perturbation theory for modified gravity
• The matter power spectrum in redshift space using effective field theory
• Large-scale redshift space distortions in modified gravity theories
• On the road to percent accuracy V: the non-linear power spectrum beyond $\Lambda$CDM with massive neutrinos and baryonic feedback
• Fast computation of non-linear power spectrum in cosmologies with massive neutrinos
• The one-loop matter bispectrum as a probe of gravity and dark energy
• A parametrisation of modified gravity on nonlinear cosmological scales
• Fast and accurate predictions of the nonlinear matter power spectrum for general models of Dark Energy and Modified Gravity
• Constraining modified theory of gravity with galaxy bispectrum
• An accurate perturbative approach to redshift space clustering of biased tracers in modified gravity
• Theoretical Accuracy in Cosmological Growth Estimation
• Non-linear contributions to angular power spectra
• A Perturbative Approach to the Redshift Space Correlation Function: Beyond the Standard Model
• Investigating the degeneracy between modified gravity and massive neutrinos with redshift-space distortions
• Nonlinear evolution of initially biased tracers in modified gravity
• New constraints on cosmological modified gravity theories from anisotropic three-point correlation functions of BOSS DR12 galaxies
• $\text{Hi-COLA}$: Fast, approximate simulations of structure formation in Horndeski gravity
• Revealing modified gravity signal in matter and halo hierarchical clustering
• Modelling the matter bispectrum at small scales in modified gravity
• Screenings in Modified Gravity: a perturbative approach
• Perturbation theory for the redshift-space matter power spectra after reconstruction
• Modelling Non-Linear Effects of Dark Energy
• Parametrizations for tests of gravity
• Cosmological Probes of Structure Growth and Tests of Gravity
• fkPT: Constraining scale-dependent modified gravity with the full-shape galaxy power spectrum
• Iterative removal of redshift space distortions from galaxy clustering
• CMB lensing bi-spectrum: assessing analytical predictions against full-sky lensing simulations
• Euclid preparation. Modelling spectroscopic clustering on mildly nonlinear scales in beyond-$\Lambda$CDM models
• Probing gravity with redshift-space distortions: effects of tracer bias and sample selection
• Assessing non-linear models for galaxy clustering II: model validation and forecasts for Stage IV surveys
• UV sensitive one-loop matter power spectrum in degenerate higher-order scalar-tensor theories
• Tackling non-linearities with the effective field theory of dark energy and modified gravity
• Assessing non-linear models for galaxy clustering III: Theoretical accuracy for Stage IV surveys
• First test of the consistency relation for the large-scale structure using the anisotropic three-point correlation function of BOSS DR12 galaxies (An explanatory video is available at https://youtu.be/Zi36ooLPhss.)
• On the galaxy 3-point correlation function in Modified Gravity
• Testing screened scalar-tensor theories of gravity with atomic clocks
• Nonlinear cosmological structure with ultralight bosons via modified gravity
• Principal Components for Model-Agnostic Modified Gravity with 3x2pt
• Momentum transfer models of interacting dark energy
• The Large Scale Structure Bootstrap: perturbation theory and bias expansion from symmetries
• Hybrid $P_{\ell }(k)$: general, unified, non-linear matter power spectrum in redshift space
• Probing gravity with non-linear clustering in redshift space