The X-ray Properties of Weak Lensing Selected Galaxy Clusters

Abstract

We present the results of an X-ray follow-up campaign targeting 10 Weak Lensing (WL) selected galaxy clusters from a Subaru WL survey. Eight clusters were studied with dedicated Chandra pointings, whereas archival X-ray data were used for the remaining two clusters. The WL clusters appear to fit the same scaling relation between X-ray luminosity and temperature as X-ray selected clusters. However, when we consider the luminosity-mass relation, the WL selected clusters appear underluminous by a factor 3.9$\pm$0.9 (or, alternatively, more massive by 2.9$\pm$0.2), compared to X-ray selected clusters. Only by considering various observational effects that could potentially bias WL masses, can this difference be reconciled. We used X-ray imaging data to quantify the dynamical state of the clusters and found that one of the clusters appears dynamically relaxed, and two of the clusters host a cool core, consistent with Sunyaev-Zel'dovich effect selected clusters. Our results suggest that regular, cool core clusters may be over-represented in X-ray selected samples.

19 pages, 18 figures; submitted to MNRAS, comments welcome

References in corpus (15)

• Testing X-ray Measurements of Galaxy Clusters with Cosmological Simulations
• Systematics in the X-ray Cluster Mass Estimators
• The impact of mergers on relaxed X-ray clusters - I. Dynamical evolution and emergent transient structures
• Galaxy clusters discovered with a Sunyaev-Zel'dovich effect survey
• Images, structural properties and metal abundances of galaxy clusters observed with Chandra ACIS-I at 0.1<z<1.3
• The Representative XMM-Newton Cluster Structure Survey (REXCESS) of an X-ray Luminosity Selected Galaxy Cluster Sample
• Joint Analysis of Cluster Observations: II. Chandra/XMM-Newton X-ray and Weak Lensing Scaling Relations for a Sample of 50 Rich Clusters of Galaxies
• Calibration of the galaxy cluster M_500-Y_X relation with XMM-Newton
• Comparison of weak lensing masses and X-ray properties of galaxy clusters
• The spin and orientation of dark matter halos within cosmic filaments
• The Lx-Yx Relation: Using Galaxy Cluster X-Ray Luminosity as a Robust, Low Scatter Mass Proxy
• The Canadian Cluster Comparison Project: weak lensing masses and SZ scaling relations
• A Statistical Study of Weak Lensing by Triaxial Dark Matter Halos: Consequences for Parameter Estimation
• A Subaru Weak Lensing Survey I: Cluster Candidates and Spectroscopic Verification
• RASS-SDSS Galaxy Cluster Survey. V. The X-ray-Underluminous Abell Clusters

Cited by in corpus (15)

• A large sample of shear selected clusters from the Hyper Suprime-Cam Subaru Strategic Program S16A wide field mass maps
• Testing the gas mass density profile of galaxy clusters with distance duality relation
• Hundreds of weak lensing shear-selected clusters from the Hyper Suprime-Cam Subaru Strategic Program S19A data
• Weak lensing calibration of mass bias in the REFLEX+BCS X-ray galaxy cluster catalogue
• EAGLE-like simulation models do not solve the entropy core problem in groups and clusters of galaxies
• Mass Bias of Weak Lensing Shear-selected Galaxy Cluster Samples
• The eROSITA Final Equatorial-Depth Survey (eFEDS): A complete census of X-ray properties of Subaru Hyper Suprime-Cam weak lensing shear-selected clusters in the eFEDS footprint
• The gas depletion factor in galaxy clusters: implication from Atacama Cosmology Telescope Polarization experiment measurements
• An Optical Observational Cluster Mass Function at $z\sim 1$ with the ORELSE Survey
• Chandra follow up of the Hectospec Cluster Survey: Comparison of Caustic and Hydrostatic Masses and Constraints on the Hydrostatic Bias
• Scaling relations of clusters and groups, and their evolution
• Why are some galaxy clusters underluminous? The very low concentration of the CL2015 mass profile
• X-ray Temperatures, Luminosities, and Masses From XMM-Newton Follow-up of the First Shear-selected Galaxy Cluster Sample
• Peaks in weak lensing mass maps for cluster astrophysics and cosmology
• The uncommon intracluster medium features of the first massive clusters selected independently of their baryon content