Cosmological constraints from the redshift dependence of the volume effect using the galaxy 2-point correlation function across the line-of-sight

Abstract

We develop a methodology to use the redshift dependence of the galaxy 2-point correlation function (2pCF) across the line-of-sight, $\xi (r_{\perp })$, as a probe of cosmological parameters. The positions of galaxies in comoving Cartesian space varies under different cosmological parameter choices, inducing a {\it redshift-dependent scaling} in the galaxy distribution. This geometrical distortion can be observed as a redshift-dependent rescaling in the measured $\xi (r_{\perp })$. We test this methodology using a sample of 1.75 billion mock galaxies at redshifts 0, 0.5, 1, 1.5, 2, drawn from the Horizon Run 4 N-body simulation. The shape of $\xi (r_{\perp })$ can exhibit a significant redshift evolution when the galaxy sample is analyzed under a cosmology differing from the true, simulated one. Other contributions, including the gravitational growth of structure, galaxy bias, and the redshift space distortions, do not produce large redshift evolution in the shape. We show that one can make use of this geometrical distortion to constrain the values of cosmological parameters governing the expansion history of the universe. This method could be applicable to future large scale structure surveys, especially photometric surveys such as DES, LSST, to derive tight cosmological constraints. This work is a continuation of our previous works as a strategy to constrain cosmological parameters using redshift-invariant physical quantities.

arXiv comment12 pages, 6 figures, Accepted for publication in ApJ

References in corpus (56)

• Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
• Measurements of Omega and Lambda from 42 High-Redshift Supernovae
• Planck 2015 results. XIII. Cosmological parameters
• Seven-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation
• Cosmological parameters from CMB and other data: a Monte-Carlo approach
• The 6dF Galaxy Survey: Baryon Acoustic Oscillations and the Local Hubble Constant
• Large-Scale Structure of the Universe and Cosmological Perturbation Theory
• Improved cosmological constraints from a joint analysis of the SDSS-II and SNLS supernova samples
• The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: Baryon Acoustic Oscillations in the Data Release 10 and 11 galaxy samples
• The Clustering of the SDSS DR7 Main Galaxy Sample I: A 4 per cent Distance Measure at z=0.15
• A 3% Solution: Determination of the Hubble Constant with the Hubble Space Telescope and Wide Field Camera 3
• Observational Probes of Cosmic Acceleration
• Why your model parameter confidences might be too optimistic -- unbiased estimation of the inverse covariance matrix
• Dark Energy
• Galaxy Clustering in the Completed SDSS Redshift Survey: The Dependence on Color and Luminosity
• Probing Dark Energy with Baryonic Acoustic Oscillations from Future Large Galaxy Redshift Surveys
• Probing dark energy using baryonic oscillations in the galaxy power spectrum as a cosmological ruler
• Fingers of God
• The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: measurements of the growth of structure and expansion rate at z=0.57 from anisotropic clustering
• Measuring the cosmological constant with redshift surveys
• The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: Anisotropic galaxy clustering in Fourier-space
• The Cluster Abundance in Flat and Open Cosmologies
• The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: Testing gravity with redshift-space distortions using the power spectrum multipoles
• A fitting formula for the merger timescale of galaxies in hierarchical clustering
• Cosmic Complementarity: H_0 and Omega_m from Combining CMB Experiments and Redshift Surveys
• Precision cosmography with stacked voids
• Theoretical Models of Dark Energy
• The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: cosmological implications of the configuration-space clustering wedges
• Cosmological parameters from CMB measurements and the final 2dFGRS power spectrum
• II: Bayesian Methods for Cosmological Parameter Estimation from Cosmic Microwave Background Measurements
• The WiggleZ Dark Energy Survey: measuring the cosmic expansion history using the Alcock-Paczynski test and distant supernovae
• Cosmological Redshift Distortion of Correlation Functions as a Probe of the Density Parameter and the Cosmological Constant
• Cosmological parameter constraints from SDSS luminous red galaxies: a new treatment of large-scale clustering
• Measurements of H(z) and D_A(z) from the Two-Dimensional Two-Point Correlation Function of Sloan Digital Sky Survey Luminous Red Galaxies
• Measuring q_0 from the Distortion of Voids in Redshift Space
• A measurement of the Alcock-Paczynski effect using cosmic voids in the SDSS
• Cosmic Voids in the SDSS DR12 BOSS Galaxy Sample: The Alcock-Paczynski Test
• Horizon Run 4 Simulation: Coupled Evolution of Galaxies and Large-scale Structures of the Universe
• Large-Scale Structure of the Universe as a Cosmic Standard Ruler
• The 2dF QSO Redshift Survey - XIII. A Measurement of Lambda from the QSO Power Spectrum
• Cosmological constraints from the redshift dependence of the Alcock-Paczynski effect: application to the SDSS-III BOSS DR12 galaxies
• The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: Angular clustering tomography and its cosmological implications
• Measuring Redshift-Space Distortions using Photometric Surveys
• Alcock-Paczynski cosmological test
• The Most Bound Halo Particle-Galaxy Correspondence Model: Comparison between Models with Different Merger Timescales
• The effect of redshift-space distortions on projected 2-pt clustering measurements
• Cosmological constraints from the redshift dependence of the Alcock-Paczynski test: galaxy density gradient field
• Cosmological constraints from the redshift dependence of the Alcock-Paczynski test and volume effect: galaxy two-point correlation function
• SDSS-III Baryon Oscillation Spectroscopic Survey: Analysis of Potential Systematics in Fitting of Baryon Acoustic Feature
• Testing dark energy using pairs of galaxies in redshift space
• The redshift-space galaxy two-point correlation function and baryon acoustic oscillations
• Cosmological Tests using Redshift Space Clustering in BOSS DR11
• Cosmological Constraints from the Anisotropic Clustering Analysis using BOSS DR9
• Probing dark energy via galaxy cluster outskirts
• Molecular jets in the DR21/W75N high-mass star-forming region
• Using galaxy pairs as cosmological tracers

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• Cosmological Parameter Estimation from the Two-Dimensional Genus Topology -- Measuring the Expansion History using the Genus Amplitude as a Standard Ruler
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