Intrinsic alignments of SDSS-III BOSS LOWZ sample galaxies

Abstract

Intrinsic alignments (IA) of galaxies, i.e. correlations of galaxy shapes with each other or with the density field, are a major astrophysical source of contamination for weak lensing surveys. We present the results of IA measurements of galaxies on 0.1- 200 Mpc/h scales using the SDSS-III BOSS LOWZ sample, in the redshift range 0.16<z<0.36. We extend the existing IA measurements for spectroscopic LRGs to lower luminosities, and show that the luminosity dependence of large-scale IA can be well-described by a power law. Within the limited redshift and color range of our sample, we observe no significant redshift or color dependence of IA. We measure the halo mass of LOWZ galaxies using galaxy-galaxy lensing, and show that the mass dependence of large-scale IA is also well described by a power law. We detect variation in the scale dependence of IA with mass and luminosity, which underscores the need to use flexible templates in order to remove the IA signal. We also study the environment dependence of IA by splitting the sample into field and group galaxies, which are further split into satellite and central galaxies. We show that group central galaxies are aligned with their halos at small scales and also are aligned with the tidal fields out to large scales. We also detect the radial alignments of satellite galaxies within groups, which results in a null detection of large-scale intrinsic alignments for satellites. These results can be used to construct better intrinsic alignment models for removal of this contaminant to the weak lensing signal.

25 pages, 22 figures. Changes in text and two additional figures. Results and conclusions unchanged. Accepted by MNRAS

References in corpus (20)

• The 2.5 m Telescope of the Sloan Digital Sky Survey
• Dark energy constraints from cosmic shear power spectra: impact of intrinsic alignments on photometric redshift requirements
• Intrinsic galaxy alignments from the 2SLAQ and SDSS surveys: luminosity and redshift scalings and implications for weak lensing surveys
• The Zurich Extragalactic Bayesian Redshift Analyzer (ZEBRA) and its first application: COSMOS
• Constraints on intrinsic alignment contamination of weak lensing surveys using the MegaZ-LRG sample
• A 2.5% measurement of the growth rate from small-scale redshift space clustering of SDSS-III CMASS galaxies
• Potential sources of contamination to weak lensing measurements: constraints from N-body simulations
• The 2dF-SDSS LRG and QSO survey: Evolution of the Luminosity Function of Luminous Red Galaxies to z=0.6
• The shapes, orientation, and alignment of Galactic dark matter subhalos
• Galaxy Shapes and Intrinsic Alignments in The MassiveBlack-II Simulation
• Three Different Types of Galaxy Alignment within Dark Matter Halos
• Cosmic web alignments with the shape, angular momentum and peculiar velocities of dark matter haloes
• Spin alignments of spiral galaxies within the large-scale structure from SDSS DR7
• Constraints on the Alignment of Galaxies in Galaxy Clusters from $\sim$14,000 Spectroscopic Members
• Separating intrinsic alignment and galaxy-galaxy lensing
• Intrinsic alignments of galaxies in the MassiveBlack-II simulation: analysis of two-point statistics
• Radial Alignment in Simulated Clusters
• The Alignment between Satellites and Central Galaxies: Theory vs. Observations
• Spatial and kinematic alignments between central and satellite halos
• On the relation between radial alignment of dark matter subhalos and host mass in cosmological simulations

Cited by in corpus (65)

• Dark Energy Survey Year 3 Results: Cosmology from Cosmic Shear and Robustness to Modeling Uncertainty
• KiDS-450 + 2dFLenS: Cosmological parameter constraints from weak gravitational lensing tomography and overlapping redshift-space galaxy clustering
• An EFT description of galaxy intrinsic alignments
• Cosmic Shear Cosmology Beyond 2-Point Statistics: A Combined Peak Count and Correlation Function Analysis of DES-Y1
• Multitracing Anisotropic Non-Gaussianity with Galaxy Shapes
• The halo model for cosmology: a pedagogical review
• SDSS-IV MaNGA: 3D spin alignment of spiral and S0 galaxies
• Testing gravity on large scales by combining weak lensing with galaxy clustering using CFHTLenS and BOSS CMASS
• The Dark Energy Survey Year 3 and eBOSS: constraining galaxy intrinsic alignments across luminosity and colour space
• Dark Energy Survey Year 3 Results: Exploiting small-scale information with lensing shear ratios
• KiDS-1000: Cosmology with improved cosmic shear measurements
• Cross-correlation of DES Y3 lensing and ACT/$Planck$ thermal Sunyaev Zel'dovich Effect II: Modeling and constraints on halo pressure profiles
• The mass dependence of dark matter halo alignments with large-scale structure
• The Three Hundred project: shapes and radial alignment of satellite, infalling, and backsplash galaxies
• KiDS-1000: Constraints on the intrinsic alignment of luminous red galaxies
• The Physics of the Accelerating Universe Camera
• The MillenniumTNG Project: Intrinsic alignments of galaxies and halos
• Tightening geometric and dynamical constraints on dark energy and gravity: galaxy clustering, intrinsic alignment and kinetic Sunyaev-Zel'dovich effect
• Cosmological constraints from HSC survey first-year data using deep learning
• Galaxy shape statistics in the effective field theory
• First Constraints on Growth Rate from Redshift-Space Ellipticity Correlations of SDSS Galaxies at $0.16<z<0.70$
• Constraints on anisotropic primordial non-Gaussianity from intrinsic alignments of SDSS-III BOSS galaxies
• Halo intrinsic alignment: dependence on mass, formation time and environment
• Modeling Intrinsic Galaxy Alignment in the MICE Simulation
• Inference from the small scales of cosmic shear with current and future Dark Energy Survey data
• Probing Cosmology and Cluster Astrophysics with Multi-Wavelength Surveys I. Correlation Statistics
• Field-level inference of galaxy intrinsic alignment from the SDSS-III BOSS survey
• An Optimal Estimator of Intrinsic Alignments for Star-forming Galaxies in IllustrisTNG Simulation
• Quadratic shape biases in three-dimensional halo intrinsic alignments
• First Evidence of Intrinsic Alignments of Red Galaxies at $z>1$: Cross-correlation between CFHTLenS and FastSound Samples
• The impact of Self-Interacting Dark Matter on the Intrinsic Alignments of Galaxies
• Analysis method for 3D power spectrum of projected tensor field with fast estimator and window convolution modelling: an application to intrinsic alignments
• Toward a Physical Understanding of Galaxy-Halo Alignment
• Accuracy requirements on intrinsic alignments for Stage-IV cosmic shear
• Intrinsic Alignment as an RSD Contaminant in the DESI Survey
• Three-point intrinsic alignments of dark matter halos in the IllustrisTNG simulation
• When galaxies align: intrinsic alignments of the progenitors of elliptical galaxies in the Horizon-AGN simulation
• KiDS-1000: Weak lensing and intrinsic alignment around luminous red galaxies
• Mass Dependence of Galaxy-Halo Alignment in LOWZ and CMASS
• Intrinsic alignments of bulges and discs
• The alignment of galaxies at the Baryon Acoustic Oscillation scale
• Relativistic distortions in galaxy density-ellipticity correlations: gravitational redshift and peculiar velocity effects
• Intrinsic galaxy alignments in the KiDS-1000 bright sample: dependence on colour, luminosity, morphology, and galaxy scale
• Nonlinear redshift space distortion in halo ellipticity correlations: Analytical model and N-body simulations
• Confusion of extragalactic sources in the far infrared: a baseline assessment of the performance of PRIMAger in intensity and polarization
• Halo shapes constrained from a pure sample of central galaxies in KiDS-1000
• UNIONS: a direct measurement of intrinsic alignment with BOSS/eBOSS spectroscopy
• Impact of intrinsic alignments on clustering constraints of the growth rate
• Third-order intrinsic alignment of SDSS BOSS LOWZ galaxies
• Intrinsic alignments of galaxies around cosmic voids
• The shape of dark matter haloes: results from weak lensing in the Ultraviolet Near-Infrared Optical Northern Survey (UNIONS)
• Galaxy clusters as intrinsic alignment tracers: present and future
• A rising tide: Intrinsic alignments since the turn of the millennium
• A new test of gravity -- II: Application of marked correlation functions to luminous red galaxy samples
• Joint Modelling of Astrophysical Systematics for Cosmology with LSST Cosmic Shear
• B-modes from galaxy cluster alignments in future surveys
• Intrinsic alignments of the extended radio continuum emission of galaxies in the EAGLE simulations
• Intrinsic alignment from multiple shear estimates: A first application to data and forecasts for Stage IV
• Cosmic shear beyond 2-point statistics: Accounting for galaxy intrinsic alignment with projected tidal fields
• Parity Violation in Galaxy Shapes: Primordial Non-Gaussianity
• Evidence for Intrinsic Galaxy Alignments in Ellipticity Autocorrelations out to $100h^{-1}\text{Mpc}$ from SDSS Galaxies with DESI Imaging
• $\text{SBi3PCF:}$ Simulation-based inference with the integrated 3PCF
• Shape asymmetries and the relation between lopsidedness and radial alignment in simulated galaxies
• Non-linear infusion of intrinsic alignment and source clustering: impact on non-Gaussian cosmic shear statistics
• Intrinsic alignments of galaxies in multiple projections