Lensing smoothing of BAO wiggles
arXiv:1609.09044 · doi:10.1088/1475-7516/2017/03/016
Abstract
We study non-perturbatively the effect of the deflection angle on the BAO wiggles of the matter power spectrum in real space. We show that from redshift z~2 this introduces a dispersion of roughly 1 Mpc at BAO scale, which corresponds approximately to a 1% effect. The lensing effect induced by the deflection angle, which is completely geometrical and survey independent, smears out the BAO wiggles. The effect on the power spectrum amplitude at BAO scale is about 0.1% for z~2 and 0.2% for z~4. We compare the smoothing effects induced by the lensing potential and non-linear structure formation, showing that the two effects become comparable at z~4, while the lensing effect dominates for sources at higher redshifts. We note that this effect is not accounted through BAO reconstruction techniques.
arXiv comment23 pages, 10 figures, version accepted for publication in JCAP
References in corpus (61)
- Efficient Computation of CMB anisotropies in closed FRW models
- The Cosmic Linear Anisotropy Solving System (CLASS) II: Approximation schemes
- Baryonic Features in the Matter Transfer Function
- Stable clustering, the halo model and nonlinear cosmological power spectra
- Revising the Halofit Model for the Nonlinear Matter Power Spectrum
- Weak Gravitational Lensing of the CMB
- A 2% Distance to z=0.35 by Reconstructing Baryon Acoustic Oscillations - I : Methods and Application to the Sloan Digital Sky Survey
- Cosmological Non-Linearities as an Effective Fluid
- Renormalized Cosmological Perturbation Theory
- The linear power spectrum of observed source number counts
- The Cosmic Linear Anisotropy Solving System (CLASS) I: Overview
- Improving Cosmological Distance Measurements by Reconstruction of the Baryon Acoustic Peak
- Resumming Cosmological Perturbations via the Lagrangian Picture: One-loop Results in Real Space and in Redshift Space
- What galaxy surveys really measure
- Nonlinear Evolution of Baryon Acoustic Oscillations
- Extended Limber Approximation
- Measuring primordial non-gaussianity without cosmic variance
- New Perspective on Galaxy Clustering as a Cosmological Probe: General Relativistic Effects
- Memory of Initial Conditions in Gravitational Clustering
- Planck 2015 results. XV. Gravitational lensing
- General Relativistic Description of the Observed Galaxy Power Spectrum: Do We Understand What We Measure?
- GRAVITATIONAL LENSING EFFECT ON COSMIC MICROWAVE BACKGROUND ANISOTROPIES: A POWER SPECTRUM APPROACH
- Detection of Cosmic Magnification with the Sloan Digital Sky Survey
- Time-Sliced Perturbation Theory II: Baryon Acoustic Oscillations and Infrared Resummation
- Resumming Cosmic Perturbations
- Planck 2015 results. XXI. The integrated Sachs-Wolfe effect
- Testing General Relativity with 21 cm intensity mapping
- General relativity and cosmic structure formation
- The CLASSgal code for Relativistic Cosmological Large Scale Structure
- Perturbation theory, effective field theory, and oscillations in the power spectrum
- Going beyond the Kaiser redshift-space distortion formula: a full general relativistic account of the effects and their detectability in galaxy clustering
- Testing General Relativity on Horizon Scales and the Primordial non-Gaussianity
- Ultra large-scale cosmology in next-generation experiments with single tracers
- Constraining ultra large-scale cosmology with multiple tracers in optical and radio surveys
- Dark matter clustering: a simple renormalization group approach
- Asymmetric galaxy correlation functions
- Beyond the Linear-Order Relativistic Effect in Galaxy Clustering: Second-Order Gauge-Invariant Formalism
- Weak lensing power spectra for precision cosmology: Multiple-deflection, reduced shear and lensing bias corrections
- Hunting down horizon-scale effects with multi-wavelength surveys
- Impact of post-Born lensing on the CMB
- Galaxy number counts to second order and their bispectrum
- Measurement of the dipole in the cross-correlation function of galaxies
- Wide Angle Effects in Future Galaxy Surveys
- Observed galaxy number counts on the lightcone up to second order: I. Main result
- Lagrangian perturbation theory at one loop order: successes, failures, and improvements
- Measuring the lensing potential with tomographic galaxy number counts
- Cosmological Parameter Estimation with Large Scale Structure Observations
- The bispectrum of relativistic galaxy number counts
- Curvature constraints from Large Scale Structure
- Optimising the measurement of relativistic distortions in large-scale structure
- CMB-lensing beyond the Born approximation
- Lensing convergence and the neutrino mass scale in galaxy redshift surveys
- CMB-lensing beyond the leading order: temperature and polarization anisotropies
- QSO-galaxy correlations due to weak lensing in arbitrary Friedmann-Lemaitre cosmologies
- Effect of lensing non-Gaussianity on the CMB power spectra
- Impact of next-to-leading order contributions to CMB lensing
- Relativistic effects in Lyman-alpha forest
- Weak lensing correlations in open and flat universes
- Weak Gravitational Lensing of High-Redshift 21 cm Power Spectra
- Universal Weak Lensing Distortion of Cosmological Correlation Functions
- Cosmological Parameters from Angular Correlations between Qsos and Galaxies
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- The relativistic dipole and gravitational redshift on LSS
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- Lensing convergence in galaxy clustering in LambdaCDM and beyond
- Backreaction and FRW consistency conditions
- The relativistic galaxy number counts in the weak field approximation
- The impact of relativistic effects on the 3D Quasar-Lyman- cross-correlation
- Renormalization group computation of likelihood functions for cosmological data sets
- Improved renormalization group computation of likelihood functions for cosmological data sets
- Weak lensing deflection of three-point correlation functions