Statistical properties of filaments in weak gravitational lensing

Abstract

We study weak lensing properties of filaments that connect clusters of galaxies through large cosmological $N$-body simulations. We select 4639 halo pairs with masses higher than $10^{14}{h}^{-1}{\mathrm{M}}_{\odot }$ from the simulations and investigate dark matter distributions between two haloes with ray-tracing simulations. In order to classify filament candidates, we estimate convergence profiles and perform profile fitting. We find that matter distributions between haloes can be classified in a plane of fitting parameters, which allow us to select straight filaments from the ray-tracing simulations. We also investigate statistical properties of these filaments, finding them to be consistent with previous studies. We find that $35\%$ of halo pairs possess straight filaments, $4\%$ of which can directly be detected at $S/N\ge 2$ with weak lensing. Furthermore, we study statistical properties of haloes at the edges of filaments. We find that haloes are preferentially elongated along filamentary structures and are less massive with increasing filament masses. However, the dependence of these halo properties on masses of straight filaments is very weak.

arXiv comment14 pages, 12 figures, 3 tables. Accepted for publication in MNRAS

References in corpus (32)

• The Sloan Digital Sky Survey: Technical Summary
• A Universal Density Profile from Hierarchical Clustering
• Wilkinson Microwave Anisotropy Probe (WMAP) Three Year Results: Implications for Cosmology
• Planck 2013 results. XVI. Cosmological parameters
• Simulating the joint evolution of quasars, galaxies and their large-scale distribution
• Weak Gravitational Lensing
• How Filaments are Woven into the Cosmic Web
• Triaxial Modeling of Halo Density Profiles with High-resolution N-body Simulations
• Evolution of the cosmic web
• Detection of (dark) matter concentrations via weak gravitational lensing
• Evidence for X-ray emission from a large-scale filament of galaxies ?
• Infall Regions of Galaxy Clusters
• Connecting the cosmic web to the spin of dark halos: implications for galaxy formation
• LoCuSS: Subaru Weak Lensing Study of 30 Galaxy Clusters
• Combined strong and weak lensing analysis of 28 clusters from the Sloan Giant Arcs Survey
• Inter-cluster filaments in a $\Lambda$CDM Universe
• Simulations of Wide-Field Weak Lensing Surveys I: Basic Statistics and Non-Gaussian Effects
• Combining cluster observables and stacked weak lensing to probe dark energy: Self-calibration of systematic uncertainties
• Searching for massive clusters in weak lensing surveys
• Detailed cluster lensing profiles at large radii and the impact on cluster weak lensing studies
• A filament of dark matter between two clusters of galaxies
• A Weak-Lensing Mass Reconstruction of the Large-Scale Filament Feeding the Massive Galaxy Cluster MACSJ0717.5+3745
• The three dimensional skeleton: tracing the filamentary structure of the universe
• The cosmic web and the orientation of angular momenta
• Probing the distribution of dark matter in the Abell 901/902 supercluster with weak lensing
• The dark matter environment of the Abell 901/902 supercluster: a weak lensing analysis of the HST STAGES survey
• CLASH: Complete Lensing Analysis of the Largest Cosmic Lens MACS J0717.5+3745 and Surrounding Structures
• Numerical study of statistical properties of the lensing excursion angles
• Scatter and bias in weak lensing selected clusters
• An XMM-Newton view of the extended "filament" near the cluster of galaxies Abell 85
• Measuring the mass distribution of voids with stacked weak lensing
• Probing the cosmic web: inter-cluster filament detection using gravitational lensing

Cited by in corpus (9)

• Cosmology and Fundamental Physics with the Euclid Satellite
• Denoising Weak Lensing Mass Maps with Deep Learning
• The detection of the imprint of filaments on cosmic microwave background lensing
• Galaxy alignment as a probe of large-scale filaments
• A gravitational lensing detection of filamentary structures connecting luminous red galaxies
• Shapley Supercluster Survey: mapping the dark matter distribution
• How dark are filaments in the cosmic web?
• Weak Lensing by Minifilament or Minivoid as the Origin of Flux-ratio Anomalies in Lensed Quasar MG0414+0534
• Denoising weak lensing mass maps with diffusion model: systematic comparison with generative adversarial network