Probing Saraswati's heart: evaluating the dynamical state of the massive galaxy cluster A2631 through a comprehensive weak-lensing and dynamical analysis
arXiv:2011.07996 · doi:10.1093/mnras/staa3575
Abstract
In this work, we investigate the dynamical state of the galaxy cluster Abell 2631, a massive structure located at the core of the Saraswati supercluster. To do this, we first solve a tension found in the literature regarding the weak-lensing mass determination of the cluster. We do this through a comprehensive weak-lensing analysis, exploring the power of the combination of shear and magnification data sets. We find M. We also determined the mass based on the dynamics of spectroscopic members, corresponding to M, consistent within a 68 per cent CL with the weak-lensing estimate. The scenarios provided by the mass distribution and dynamics of galaxies are reconciled with those provided by X-ray observations in a scenario where A2631 is observed at a late stage of merging.
arXiv comment14 pages, 10 figures, 6 tables. Accepted on Nov, 13 for publication in MNRAS
References in corpus (77)
- The Sloan Digital Sky Survey: Technical Summary
- A Universal Density Profile from Hierarchical Clustering
- The Structure of Cold Dark Matter Halos
- The Eleventh and Twelfth Data Releases of the Sloan Digital Sky Survey: Final Data from SDSS-III
- First results from the IllustrisTNG simulations: matter and galaxy clustering
- Ellipsoidal collapse and an improved model for the number and spatial distribution of dark matter haloes
- COSMOS Photometric Redshifts with 30-bands for 2-deg2
- A Cosmology Calculator for the World Wide Web
- The Fourth US Naval Observatory CCD Astrograph Catalog (UCAC4)
- Direct constraints on the dark matter self-interaction cross-section from the merging galaxy cluster 1E0657-56
- Dark matter halo concentrations in the Wilkinson Microwave Anisotropy Probe year 5 cosmology
- Formation of Galaxy Clusters
- The First Release COSMOS Optical and Near-IR Data and Catalog
- Shocks and cold fronts in galaxy clusters
- The non-gravitational interactions of dark matter in colliding galaxy clusters
- Probing the Universe with Weak Lensing
- The Atacama Cosmology Telescope: Sunyaev-Zel'dovich Selected Galaxy Clusters at 148 GHz from Three Seasons of Data
- Subaru Deep Survey V. A Census of Lyman Break Galaxies at z=4 and 5 in the Subaru Deep Fields: Photometric Properties
- The Canadian Cluster Comparison Project: detailed study of systematics and updated weak lensing masses
- Virial Scaling of Massive Dark Matter Halos: Why Clusters Prefer a High Normalization Cosmology
- Creation of cosmic structure in the complex galaxy cluster merger Abell 2744
- The galaxy cluster mass scale and its impact on cosmological constraints from the cluster population
- Weighing the Giants - I. Weak-lensing masses for 51 massive galaxy clusters: project overview, data analysis methods and cluster images
- Weighing the Giants - III. Methods and Measurements of Accurate Galaxy Cluster Weak-Lensing Masses
- LoCuSS: Subaru Weak Lensing Study of 30 Galaxy Clusters
- The relation between velocity dispersion and mass in simulated clusters of galaxies: dependence on the tracer and the baryonic physics
- X-ray/optical classification of cluster mergers and the evolution of the cluster merger fraction
- On the efficiency and reliability of cluster mass estimates based on member galaxies
- Measuring the Ultimate Mass of Galaxy Clusters: Redshifts and Mass Profiles from the Hectospec Cluster Survey (HeCS)
- CLASH: Joint Analysis of Strong-Lensing, Weak-Lensing Shear and Magnification Data for 20 Galaxy Clusters
- GMRT Radio Halo Survey in galaxy clusters at z = 0.2 -- 0.4 I.The REFLEX sub--sample
- LoCuSS: Comparison of Observed X-ray and Lensing Galaxy Cluster Scaling Relations with Simulations
- LoCuSS: Weak-lensing mass calibration of galaxy clusters
- The Observational Mass Function of Nearby Galaxy Clusters
- Weak lensing mass distributions for 24 X-Ray Abell Clusters
- Substructure and dynamical state of 2092 rich clusters of galaxies derived from photometric data
- LoCuSS: The Sunyaev-Zel'dovich Effect and Weak Lensing Mass Scaling Relation
- X-ray properties in massive galaxy clusters: XMM-Newton observations of the REFLEX-DXL sample
- A maximum-entropy method for reconstructing the projected mass distribution of gravitational lenses
- Planck intermediate results. III. The relation between galaxy cluster mass and Sunyaev-Zeldovich signal
- Maximum-entropy weak lens reconstruction: improved methods and application to data
- Interloper treatment in dynamical modelling of galaxy clusters
- Source Selection for Cluster Weak Lensing Measurements in the Hyper Suprime-Cam Survey
- Measuring the Mass Distribution in Galaxy Clusters
- XMM-Newton study of the two-dimensional structure of the REFLEX-DXL galaxy clusters
- The Atacama Cosmology Telescope: Dynamical masses for 44 SZ-selected galaxy clusters over 755 square degrees
- Substructure in the Most Massive GEEC Groups: Field-like Populations in Dynamically Active Groups
- Baryon impact on weak lensing peaks and power spectrum: low-bias statistics and self-calibration in future surveys
- Detailed Cluster Mass and Light profiles of A1703, A370 and RXJ1347-11 from Deep Subaru Imaging
- The Origin of Weak Lensing Convergence Peaks
- LoCuSS: Luminous infrared galaxies in the merging cluster Abell 1758 at z=0.28
- Chandra Measurements of a Complete Sample of X-ray Luminous Galaxy Clusters: the Gas Mass Fraction
- Mass Estimation of Merging Galaxy Clusters
- SPIDER IX - Classifying Galaxy Groups according to their Velocity Distribution
- Major Cluster Mergers and the Location of the Brightest Cluster Galaxy
- Hydrostatic and Caustic Mass Profiles of Galaxy Clusters
- Cluster Bulleticity
- The merger history of the complex cluster Abell 1758: a combined weak lensing and spectroscopic view
- Unusual A2142 supercluster with a collapsing core: distribution of light and mass
- Saraswati: An Extremely Massive ~ 200 Megaparsec Scale Supercluster
- Probing the Fundamental Nature of Dark Matter with the Large Synoptic Survey Telescope
- A New Method to Quantify X-ray Substructures in Clusters of Galaxies
- Weak lensing and spectroscopic analysis of the nearby dissociative merging galaxy cluster Abell 3376
- Biases in galaxy cluster velocity dispersion and mass estimates in the small number of galaxies regime
- The Atacama Cosmology Telescope: High-Resolution Sunyaev-Zel'dovich Array Observations of ACT SZE-selected Clusters from the Equatorial Strip
- X-ray scaling relations from a complete sample of the richest maxBCG clusters
- Simulated Analogs of Merging Galaxy Clusters Constrain the Viewing Angle
- New insights on the dissociative merging galaxy cluster Abell 2034
- Weak lensing measurements of the APEX-SZ galaxy cluster sample
- GMRT 610 MHz observations of galaxy clusters in the ACT equatorial sample
- Simulations of the merging galaxy cluster Abell 2034: what determines the level of separation between gas and dark matter
- Simulations of gas sloshing induced by a newly discovered gas poor substructure in galaxy cluster Abell 1644
- A combined X-ray, optical and radio view of the merging galaxy cluster MACS J0417.5-1154
- Revising the merger scenario of the galaxy cluster Abell 1644: a new gas poor structure discovered by weak gravitational lensing
- The dynamical state of Abell 2399: a bullet-like cluster
- The Correspondence between Convergence Peaks from Weak Lensing and Massive Dark Matter Haloes
- A Gemini view of the galaxy cluster RXC J1504-0248: insights on the nature of the central gaseous filaments
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- eROSITA clusters dynamical state and their impact on the BCG luminosity
- Unveiling the internal structure of Hercules supercluster
- The evolution of high-density cores of the BOSS Great Wall superclusters
- A major galaxy cluster merger caught by eROSITA: weak lensing mass distribution and kinematic description
- Clash of Titans: a MUSE dynamical study of the extreme cluster merger SPT-CL J0307-6225
- MOSS I: Double radio relics in the Saraswati supercluster