Weak-Lensing Detection at z~1.3: Measurement of the Two Lynx Clusters with Advanced Camera for Surveys

Abstract

(Abridged) We present a HST/ACS weak-lensing study of RX J0849+4452 and RX J0848+4453, the two most distant (at z=1.26 and z=1.27, respectively) clusters yet measured with weak-lensing. The two clusters are separated by ~4' from each other and appear to form a supercluster in the Lynx field. Using our deep ACS F775W and F850LP imaging, we detected weak-lensing signals around both clusters at ~4 sigma levels. The mass distribution indicated by the reconstruction map is in good spatial agreement with the cluster galaxies. From the SIS fitting, we determined that RX J0849+4452 and RX J0848+4453 have similar projected masses of ~2.0x10^14 solar mass and ~2.1x10^14 solar mass, respectively, within a 0.5 Mpc (~60") aperture radius.

arXiv commentAccepted to ApJ. Full resolution version can be downloaded at http://acs.pha.jhu.edu/~mkjee/lynx.pdf

References in corpus (27)

• The Great Observatories Origins Deep Survey: Initial Results From Optical and Near-Infrared Imaging
• The Photometric Performance and Calibration of the HST Advanced Camera For Surveys
• Drizzle: A Method for the Linear Reconstruction of Undersampled Images
• Shapes and Shears, Stars and Smears: Optimal Measurements for Weak Lensing
• The Imprint of Galaxy Formation on X-ray Clusters
• The Evolution of X-ray Clusters of Galaxies
• The Evolution of X-ray Clusters and the Entropy of the Intra Cluster Medium
• Shear calibration biases in weak lensing surveys
• The Red-Sequence Cluster Survey I: The Survey and Cluster Catalogs for Patches RCS0926+37 and RCS1327+29
• Shapelets: I. A Method for Image Analysis
• Scaling laws in X-ray Galaxy Clusters at redshift between 0.4 and 1.3
• Pre-Heated Isentropic Gas in Groups of Galaxies
• A New Shear Estimator for Weak Lensing Observations
• An X-ray Selected Galaxy Cluster at z=1.26
• An IR-Selected Galaxy Cluster at z=1.27
• Chandra and XMM-Newton Observations of RDCS1252.9-2927, A Massive Cluster at z=1.24
• Evolution of the cluster X-ray scaling relations since z>0.4
• Iron abundance in the ICM at high redshift
• The Mass distribution of the Most Luminous X-ray Cluster RXJ1347.5-1145 from Gravitational Lensing
• Cosmological weak lensing with the HST GEMS survey
• Weak Lensing Analysis of the z~0.8 cluster CL 0152-1357 with the Advanced Camera for Surveys
• The Intracluster Medium in z > 1 Galaxy Clusters
• HST/Acs Weak-Lensing and Chandra X-Ray Studies of the High-Redshift Cluster MS 1054-0321
• SPICES II. Optical and Near-Infrared Identifications of Faint X-Ray Sources from Deep Chandra Observations of Lynx
• HST/ACS weak lensing analysis of the galaxy cluster RDCS 1252.9-2927 at z=1.24
• Discovery of a Large Scale Clumpy Structure around the Lynx Supercluster at z~1.27
• RX J0848+4456: Disentangling a Moderate Redshift Cluster

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• Scaling Relations and Overabundance of Massive Clusters at z>~1 from Weak-Lensing Studies with HST
• Hubble Space Telescope Weak-lensing Study of the Galaxy Cluster XMMU J2235.3-2557 at z=1.4: A Surprisingly Massive Galaxy Cluster when the Universe is One-third of its Current Age
• The Evolution of Active Galactic Nuclei in Clusters of Galaxies to Redshift 1.3
• The VIMOS Ultra Deep Survey: Emerging from the Dark, a Massive Proto-Cluster at z~4.57
• Evolution of the Color-Magnitude relation in High-Redshift Clusters: Early-type Galaxies in the Lynx Supercluster at z~1.26
• Dark Matter and Baryons in the Most X-ray Luminous and Merging Galaxy Cluster RX J1347.5-1145
• Cosmic shear analysis of archival HST/ACS data: I. Comparison of early ACS pure parallel data to the HST/GEMS Survey
• Hubble Space Telescope/Advanced Camera for Surveys Confirmation of the Dark Substructure in A520
• Interpolating point spread function anisotropy
• CoMaLit III. Literature Catalogs of weak Lensing Clusters of galaxies (LC^2)
• Early-type galaxies at z = 1.3. I. The Lynx supercluster: cluster and groups at z=1.3. Morphology and color-magnitude relation
• Equilibrium configurations of 11eV sterile neutrinos in MONDian galaxy clusters
• The mass-concentration relation in massive galaxy clusters at redshift ~1
• Dark Matter in the Galaxy Cluster CL J1226+3332 at Z=0.89
• Early-type galaxies at z~1.3. II. Masses and ages of early-type galaxies in different environments and their dependence on stellar population model assumptions
• The dynamics of z~1 clusters of galaxies from the GCLASS survey
• The Massive Galaxy Cluster XMMU J1230.3+1339 at z ~ 1: Colour-magnitude relation, Butcher-Oemler effect, X-ray and weak lensing mass estimates
• A pan-chromatic view of the galaxy cluster XMMU J1230.3+1339 at z=0.975 - Observing the assembly of a massive system
• The GOGREEN survey: the internal dynamics of clusters of galaxies at redshift 0.9-1.4
• MARS: A New Maximum Entropy-Regularized Strong Lensing Mass Reconstruction Method
• An Optical Observational Cluster Mass Function at $z\sim 1$ with the ORELSE Survey
• Astrophysics in 2006
• The Evolution of Radio Galaxies and X-ray Point Sources in Coma Cluster Progenitors Since z~1.2
• Weak-lensing Mass Reconstruction of Galaxy Clusters with a Convolutional Neural Network -- II: Application to Next-Generation Wide-Field Surveys
• The Gemini/HST Galaxy Cluster Project: Environment Effects on the Stellar Populations in the Lynx Clusters at z=1.27
• Deep lensing with a twist: E and B modes in a field with multiple lenses
• Distant clusters of galaxies in the 2XMM/SDSS footprint: follow-up observations with the LBT