Impact of Relativistic Effects on the Primordial Non-Gaussianity Signature in the Large-Scale Clustering of Quasars

Abstract

Relativistic effects in clustering observations have been shown to introduce scale-dependent corrections to the galaxy over-density field on large scales, which may hamper the detection of primordial non-Gaussianity $f_{\text{NL}}$ through the scale-dependent halo bias. The amplitude of relativistic corrections depends not only on the cosmological background expansion, but also on the redshift evolution and sensitivity to the luminosity threshold of the tracer population being examined, as parametrised by the evolution bias $b_{\text{e}}$ and magnification bias $s$. In this work, we propagate luminosity function measurements from the extended Baryon Oscillation Spectroscopic Survey (eBOSS) to $b_{\text{e}}$ and $s$ for the quasar (QSO) sample, and thereby derive constraints on relativistic corrections to its power spectrum multipoles. Although one could mitigate the impact on the $f_{\text{NL}}$ signature by adjusting the redshift range or the luminosity threshold of the tracer sample being considered, we suggest that, for future surveys probing large cosmic volumes, relativistic corrections should be forward modelled from the tracer luminosity function including its uncertainties. This will be important to quasar clustering measurements on scales $k\sim 10^{-3}h{\text{Mpc}}^{-1}$ in upcoming surveys such as the Dark Energy Spectroscopic Instrument (DESI), where relativistic corrections can overwhelm the expected $f_{\text{NL}}$ signature at low redshifts $z\lesssim 1$ and become comparable to $f_{\text{NL}}\simeq 1$ in the power spectrum quadrupole at redshifts $z\gtrsim 2.5$.

arXiv commentPublished by MNRAS, 7 figures and 1 table; changes made after peer review; public code HorizonGRound available at http://github.com/MikeSWang/HorizonGRound

References in corpus (57)

• Astropy: A Community Python Package for Astronomy
• Planck 2015 results. XIII. Cosmological parameters
• The Astropy Project: Building an inclusive, open-science project and status of the v2.0 core package
• Non-Gaussian features of primordial fluctuations in single field inflationary models
• The DESI Experiment Part I: Science,Targeting, and Survey Design
• Cosmology and Fundamental Physics with the Euclid Satellite
• Euclid Definition Study Report
• The SDSS Quasar Survey: Quasar Luminosity Function from Data Release Three
• The imprints of primordial non-gaussianities on large-scale structure: scale dependent bias and abundance of virialized objects
• The 2dF QSO Redshift Survey - I. The Optical QSO Luminosity Function
• The linear power spectrum of observed source number counts
• Constraints on local primordial non-Gaussianity from large scale structure
• What galaxy surveys really measure
• The effect of primordial non-Gaussianity on halo bias
• Measuring primordial non-gaussianity without cosmic variance
• New Perspective on Galaxy Clustering as a Cosmological Probe: General Relativistic Effects
• Large-scale clustering of galaxies in general relativity
• DESI and other dark energy experiments in the era of neutrino mass measurements
• nbodykit: an open-source, massively parallel toolkit for large-scale structure
• How to measure redshift-space distortions without sample variance
• Evolution of the AGN UV luminosity function from redshift 7.5
• The clustering of intermediate redshift quasars as measured by the Baryon Oscillation Spectroscopic Survey
• A Spherical Harmonic Analysis of Redshift Space
• Planck 2018 results. IX. Constraints on primordial non-Gaussianity
• Ultra large-scale cosmology in next-generation experiments with single tracers
• Disentangling non-Gaussianity, bias and GR effects in the galaxy distribution
• Redshift-weighted constraints on primordial non-Gaussianity from the clustering of the eBOSS DR14 quasars in Fourier space
• Redshift Space Distortions of the Correlation Function in Wide Angle Galaxy Surveys
• Wiener Reconstruction of Density, Velocity, and Potential Fields from All-Sky Galaxy Redshift Surveys
• Hunting down horizon-scale effects with multi-wavelength surveys
• Beyond the plane-parallel and Newtonian approach: Wide-angle redshift distortions and convergence in general relativity
• Modelling the number density of Halpha emitters for future spectroscopic near-IR space missions
• Cross-Correlation of SDSS DR7 Quasars and DR10 BOSS Galaxies: The Weak Luminosity Dependence of Quasar Clustering at z~0.5
• The Extended Baryon Oscillation Spectroscopic Survey: Variability Selection and Quasar Luminosity Function
• A Simple Model for Quasar Demographics
• Beyond the plane-parallel approximation for redshift surveys
• Supermassive Black Holes in the Hierarchical Universe: A General Framework and Observational Tests
• Non-Perturbative Effects of Geometry in Wide-Angle Redshift Distortions
• A simple model to link the properties of quasars to the properties of dark matter halos out to high redshift
• Wide Angle Redshift Distortions Revisited
• Interpreting measurements of the anisotropic galaxy power spectrum
• Wide Angle Effects in Future Galaxy Surveys
• Einstein's legacy in galaxy surveys
• Cosmological Measurements with General Relativistic Galaxy Correlations
• Isolating relativistic effects in large-scale structure
• All-Sky Analysis of the General Relativistic Galaxy Power Spectrum
• The impact of relativistic effects on cosmological parameter estimation
• The Clustering of High-Redshift (2.9 $\le$ z $\le$ 5.1) Quasars in SDSS Stripe 82
• Relativistic effects in galaxy clustering in a parametrized post-Friedmann universe
• Modeling relativistic contributions to the halo power spectrum dipole
• On the importance of lensing for galaxy clustering in photometric and spectroscopic surveys
• Magnification effect on the detection of primordial non-Gaussianity from photometric surveys
• Optimising primordial non-Gaussianity measurements from galaxy surveys
• Lensing and time-delay contributions to galaxy correlations
• A null test of the equivalence principle using relativistic effects in galaxy surveys
• Hybrid-basis inference for large-scale galaxy clustering: combining spherical and Cartesian Fourier analyses
• Measuring the luminosity and virial black hole mass dependence of quasar-galaxy clustering at z ~ 0.8

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