Ellipticities of Galaxy Cluster Halos from Halo-Shear-Shear Correlations
arXiv:2408.07373 · doi:10.3847/1538-4357/ada362
Abstract
We report the first detection of the halo ellipticities of galaxy clusters by applying the halo-shear-shear correlations (HSSC), without the necessity of major axis determination. We use the Fourier\_Quad shear catalog based on the Hyper Suprime-Cam Survey and the group catalog from the DESI Legacy Surveys for the measurement of group/cluster lensing and HSSC. Our analysis includes the off-centering effects. We obtain the average projected ellipticity of dark matter halos with mass within 1.3 virial radius to be . We divide the sample into two groups based on mass and redshift, and we find that halos with higher mass tend to exhibit increased ellipticity. We also reveal that high-richness halos have larger ellipticities, confirming the physical picture from numerical simulation that high-richiness halos have a dynamical youth and more active mass accretion phase.
arXiv comment9 figures, 4 tables. Submitted to APJ
References in corpus (48)
- A Universal Density Profile from Hierarchical Clustering
- Overview of the DESI Legacy Imaging Surveys
- Dark matter halo concentrations in the Wilkinson Microwave Anisotropy Probe year 5 cosmology
- Triaxial Modeling of Halo Density Profiles with High-resolution N-body Simulations
- The Shape of Dark Matter Halos: Dependence on Mass, Redshift, Radius, and Formation
- Cosmological Simulations with Self-Interacting Dark Matter II: Halo Shapes vs. Observations
- COLOSSUS: A python toolkit for cosmology, large-scale structure, and dark matter halos
- Third Data Release of the Hyper Suprime-Cam Subaru Strategic Program
- The Effect of Gas Cooling on the Shapes of Dark Matter Halos
- Combined strong and weak lensing analysis of 28 clusters from the Sloan Giant Arcs Survey
- Shapes and Alignments of Galaxy Cluster Halos
- II: Bayesian Methods for Cosmological Parameter Estimation from Cosmic Microwave Background Measurements
- Direct measurement of dark matter halo ellipticity from two-dimensional lensing shear maps of 25 massive clusters
- Shape of Dark Matter Haloes in the Illustris Simulation: Effects of Baryons
- The Three-Dimensional Shapes of Galaxy Clusters
- Weak Lensing by Galaxies in Groups and Clusters: I.--Theoretical Expectations
- Some like it triaxial: the universality of dark matter halo shapes and their evolution along the cosmic time
- An Extended Halo-based Group/Cluster finder: application to the DESI legacy imaging surveys DR8
- Universality of dark matter haloes shape over six decades in mass: Insights from the Millennium XXL and SBARBINE simulations
- Constraints on the shapes of galaxy dark matter haloes from weak gravitational lensing
- The ellipticity of galaxy cluster halos from satellite galaxies and weak lensing
- Halo ellipticity of GAMA galaxy groups from KiDS weak lensing
- Lensing Measurements of the Ellipticity of LRG Dark Matter Halos
- Baryonic Imprints on DM Halos: Population Statistics from Dwarf Galaxies to Galaxy Clusters
- Shapes and alignments of dark matter haloes and their brightest cluster galaxies in 39 strong lensing clusters
- Correlations between Triaxial Shapes and Formation History of Dark Matter Haloes
- Weak-Lensing Halo Numbers and Dark-Matter Profiles
- Approaching the Cramer-Rao Bound in Weak Lensing with PDF Symmetrization
- Testing Shear Recovery with Field Distortion
- Constraining SIDM with halo shapes: revisited predictions from realistic simulations of early-type galaxies
- CFHTLenS: Weak lensing constraints on the ellipticity of galaxy-scale matter haloes and the galaxy-halo misalignment
- Evolution and Statistics of Non-Sphericity of Dark Matter Halos from Cosmological N-Body Simulation
- The shape of galaxy dark matter halos in massive galaxy clusters: Insights from strong gravitational lensing
- Light versus dark in strong-lens galaxies: Dark matter haloes that are rounder than their stars
- Three-point galaxy-galaxy lensing as a probe of dark matter halo shapes
- Halo Properties and Mass Functions of Groups/Clusters from the DESI Legacy Imaging Surveys DR9
- Redshift evolution of the dark matter haloes shapes
- Shear Measurement with Poorly Resolved Images
- Towards an understanding of third-order galaxy-galaxy lensing
- Measuring the surface mass density ellipticity of redMaPPer galaxy clusters using weak-lensing
- Tightening weak lensing constraints on the ellipticity of galaxy-scale dark matter haloes
- Mitigating the Noise-Source Coupling Effect in Shear Measurement
- Halo shapes constrained from a pure sample of central galaxies in KiDS-1000
- Tele-Correlation: Calibrating Shear-Shear Correlation with Real Data
- The case for two-dimensional galaxy-galaxy lensing
- Quasi-2D Weak Lensing Cosmological Constraints Using the PDF-SYM method
- Probing the shape and internal structure of dark matter halos with the halo-shear-shear three-point correlation function
- Removing the Impact of Correlated PSF Uncertainties in Weak Lensing