KiDS-1000: Weak lensing and intrinsic alignment around luminous red galaxies

Abstract

We study the properties of luminous red galaxies (LRGs) selected from the fourth data release of the Kilo Degree Survey (KiDS-1000) via galaxy-galaxy lensing of the background galaxies from KiDS-1000. We used a halo model formalism to interpret our measurements and obtain estimates of the halo masses as well as the satellite fractions of the LRGs, resulting in halo masses of $2.7\times 10^{12}{h}^{-1}{\mathrm{M}}_{\odot }<M_{\mathrm{h}}<2.6\times 10^{13}{h}^{-1}{\mathrm{M}}_{\odot }$. We studied the strength of intrinsic alignments (IA) using the position-shape correlations as a function of LRG luminosity, where we used a double power law to describe the relation between luminosity and halo mass to allow for a comparison with previous works. Here, we directly linked the observed IA of the (central) galaxy to the mass of the hosting halo, which is expected to be a fundamental quantity in establishing the alignment. We find that the dependence of the IA amplitude on halo mass is described well by a single power law, with an amplitude of $A=5.74\pm 0.32$ and slope of ${\beta }_M=0.44\pm 0.04$, in the range of $1.9\times 10^{12}{h}^{-1}{\mathrm{M}}_{\odot }<M_{\mathrm{h}}<3.7\times 10^{14}{h}^{-1}{\mathrm{M}}_{\odot }$. We also find that both red and blue galaxies from the source sample associated with the LRGs are randomly oriented, with respect to the LRGs, although our detection significance is limited by the uncertainty in our photometric redshifts.

14 pages, 6 figures, accepted for publication by A&A

References in corpus (89)

• emcee: The MCMC Hammer
• Stellar population synthesis at the resolution of 2003
• Galactic Stellar and Substellar Initial Mass Function
• Gaia Data Release 2. Summary of the contents and survey properties
• The Structure of Cold Dark Matter Halos
• Halo Models of Large Scale Structure
• The Cosmic Evolution Survey (COSMOS) -- Overview
• Accurate photometric redshifts for the CFHT Legacy Survey calibrated using the VIMOS VLT Deep Survey
• Bayesian photometric redshift estimation
• Analytic model for galaxy and dark matter clustering
• Galaxy Groups in the SDSS DR4: I. The Catalogue and Basic Properties
• The Large Scale Bias of Dark Matter Halos: Numerical Calibration and Model Tests
• Measuring and Modelling the Redshift Evolution of Clustering: the Hubble Deep Field North
• Clustering of Galaxies in a Hierarchical Universe: I. Methods and Results at z=0
• Dark matter halo concentrations in the Wilkinson Microwave Anisotropy Probe year 5 cosmology
• The Halo Occupation Distribution: Towards an Empirical Determination of the Relation Between Galaxies and Mass
• Theoretical Models of the Halo Occupation Distribution: Separating Central and Satellite Galaxies
• Constraining Galaxy Formation and Cosmology with the Conditional Luminosity Function of Galaxies
• Intrinsic alignment-lensing interference as a contaminant of cosmic shear
• Properties of Dark Matter Haloes in Clusters, Filaments, Sheets and Voids
• The Nature of Galaxy Bias and Clustering
• Dark energy constraints from cosmic shear power spectra: impact of intrinsic alignments on photometric redshift requirements
• Galaxies in the Hubble Ultra Deep Field: I. Detection, Multiband Photometry, Photometric Redshifts, and Morphology
• Bayesian Galaxy Shape Measurement for Weak Lensing Surveys - III. Application to the Canada-France-Hawaii Telescope Lensing Survey
• Intrinsic and Extrinsic Galaxy Alignment
• GAMA: towards a physical understanding of galaxy formation
• Deriving the Nonlinear Cosmological Power Spectrum and Bispectrum from Analytic Dark Matter Halo Profiles and Mass Functions
• KiDS+VIKING-450: Cosmic shear tomography with optical+infrared data
• The fourth data release of the Kilo-Degree Survey: ugri imaging and nine-band optical-IR photometry over 1000 square degrees
• Systematic errors in weak lensing: application to SDSS galaxy-galaxy weak lensing
• The Galaxy-mass Correlation Function Measured from Weak Lensing in the SDSS
• Intrinsic galaxy alignments from the 2SLAQ and SDSS surveys: luminosity and redshift scalings and implications for weak lensing surveys
• The Intrinsic Alignment of Galaxies and its Impact on Weak Gravitational Lensing in an Era of Precision Cosmology
• Detection of large scale intrinsic ellipticity-density correlation from the Sloan Digital Sky Survey and implications for weak lensing surveys
• Weak lensing surveys and the intrinsic correlation of galaxy ellipticities
• Bayesian Galaxy Shape Measurement for Weak Lensing Surveys -I. Methodology and a Fast Fitting Algorithm
• Constraints on intrinsic alignment contamination of weak lensing surveys using the MegaZ-LRG sample
• Cosmological Constraints from a Combination of Galaxy Clustering and Lensing -- I. Theoretical Framework
• Beyond linear galaxy alignments
• Lensing is Low: Cosmology, Galaxy Formation, or New Physics?
• redMaGiC: Selecting Luminous Red Galaxies from the DES Science Verification Data
• Intrinsic alignments of SDSS-III BOSS LOWZ sample galaxies
• Galaxy Clustering & Galaxy-Galaxy Lensing: A Promising Union to Constrain Cosmological Parameters
• Cosmological Constraints from a Combination of Galaxy Clustering and Lensing -- III. Application to SDSS Data
• KiDS-1000 catalogue: Redshift distributions and their calibration
• The WiggleZ Dark Energy Survey: Direct constraints on blue galaxy intrinsic alignments at intermediate redshifts
• A halo model for intrinsic alignments of galaxy ellipticities
• KiDS-1000 catalogue: Weak gravitational lensing shear measurements
• Virial masses and the baryon fraction in galaxies
• Cluster Alignments and Ellipticities in LCDM Cosmology
• The alignment and shape of dark matter, stellar, and hot gas distributions in the EAGLE and cosmo-OWLS simulations
• Testing the tidal alignment model of galaxy intrinsic alignment
• Galaxy-galaxy lensing estimators and their covariance properties
• EzGal: A Flexible Interface for Stellar Population Synthesis Models
• KiDS+VIKING-450: A new combined optical & near-IR dataset for cosmology and astrophysics
• Three Different Types of Galaxy Alignment within Dark Matter Halos
• The stellar-to-halo mass relation of GAMA galaxies from 100 square degrees of KiDS weak lensing data
• Cosmic web alignments with the shape, angular momentum and peculiar velocities of dark matter haloes
• Constraints on the Alignment of Galaxies in Galaxy Clusters from $\sim$14,000 Spectroscopic Members
• Towards emulating cosmic shear data: Revisiting the calibration of the shear measurements for the Kilo-Degree Survey
• KiDS+GAMA: Intrinsic alignment model constraints for current and future weak lensing cosmology
• An EFT description of galaxy intrinsic alignments
• The Weak Lensing Signal and the Clustering of BOSS Galaxies I: Measurements
• Separating intrinsic alignment and galaxy-galaxy lensing
• Intrinsic alignments of galaxies in the EAGLE and cosmo-OWLS simulations
• Radial Alignment in Simulated Clusters
• KiDS+VIKING-450: Improved cosmological parameter constraints from redshift calibration with self-organising maps
• Radial Alignment of Cluster Galaxies
• Unveiling Galaxy Bias via the Halo Model, KiDS and GAMA
• Quantifying the Cosmic Web I: The large-scale halo ellipticity-ellipticity and ellipticity-direction correlations
• Bright galaxy sample in the Kilo-Degree Survey Data Release 4: selection, photometric redshifts, and physical properties
• Halo ellipticity of GAMA galaxy groups from KiDS weak lensing
• Intrinsic alignments of group and cluster galaxies in photometric surveys
• The mass dependence of dark matter halo alignments with large-scale structure
• Intrinsic alignment of redMaPPer clusters: cluster shape - matter density correlation
• KiDS-1000: Constraints on the intrinsic alignment of luminous red galaxies
• Intrinsic Alignment in redMaPPer clusters -- II. Radial alignment of satellites toward cluster centers
• GAMA+KiDS: Alignment of galaxies in galaxy groups and its dependence on galaxy scale
• Tidal Torquing of Elliptical Galaxies in Cluster Environments
• CFHTLenS: Weak lensing constraints on the ellipticity of galaxy-scale matter haloes and the galaxy-halo misalignment
• Halo intrinsic alignment: dependence on mass, formation time and environment
• Luminous red galaxies in the Kilo Degree Survey: selection with broad-band photometry and weak lensing measurements
• Describing galaxy weak lensing measurements from tenths to tens of Mpc and up to z~0.6 with a single model
• Evolution of the luminosity-to-halo mass relation of LRGs from a combined SDSS-DR10+RCS2 analysis
• Clustering of red-sequence galaxies in the fourth data release ofthe Kilo-Degree Survey
• Measuring the scale dependence of intrinsic alignments using multiple shear estimates
• KiDS+VIKING-450: An internal-consistency test for cosmic shear tomography with a colour-based split of source galaxies
• Halo shapes constrained from a pure sample of central galaxies in KiDS-1000
• The shape of dark matter haloes: results from weak lensing in the Ultraviolet Near-Infrared Optical Northern Survey (UNIONS)

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• A rising tide: Intrinsic alignments since the turn of the millennium
• Matter power spectrum reconstruction with KiDS-Legacy: Improved internal $\Lambda$CDM consistency and preference for strong baryonic feedback
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