XMM-Newton observation of the interacting cluster Abell 3528

Abstract

We analyze the XMM dataset of the interacting cluster of galaxies Abell 3528 located westward in the core of the Shapley Supercluster, the largest concentration of mass in the nearby Universe. A3528 is formed by two interacting clumps (A3528-N at North and A3528-S at South) separated by 0.9 $h_{70}^{-1}$ Mpc at redshift 0.053. XMM data describe these clumps as relaxed structure with an overall temperature of $4.14\pm 0.09$ and $4.29\pm 0.07$ keV in A3528-N and A3528-S, respectively, and a core cooler by a factor 1.4--1.5 and super-solar metal abundance in the inner 30 arcsec. These clumps are connected by a X-ray soft, bridge-like emission and present asymmetric surface brightness with significant excess in the North--West region of A3528-N and in the North--East area of A3528-S. However, we do not observe any evidence of shock heated gas, both in the surface brightness and in the temperature map. Considering also that the optical light distribution is more concentrated around A3528-N and makes A3528-S barely detectable, we do not find support to the originally suggested head-on pre-merging scenario and conclude that A3528 is in a off-axis post-merging phase, where the closest cores encounter happened about 1--2 Gyrs ago.

arXiv comment15 pages, 16 figures (10 in colors), accepted for publication on A&A. For a Poscript version with high resolution figures see http://www.mi.iasf.cnr.it/~gasta/www/a3528.html

References in corpus (33)

• A Universal Density Profile from Hierarchical Clustering
• A Textbook Example of a Bow Shock in the Merging Galaxy Cluster 1E0657-56
• The Lx-T Relation and Temperature Function for Nearby Clusters Revisited
• Off-Axis Cluster Mergers: Effects of a Strongly Peaked Dark Matter Profile
• X-ray background measurements with XMM-Newton EPIC
• A moving cold front in the intergalactic medium of A3667
• ASCA Measurements of Silicon and Iron Abundances in the Intracluster Medium
• Measuring Cluster Temperature Profiles with XMM/EPIC
• Spatially-resolved X-ray spectroscopy of the core of the Centaurus cluster
• Physics of the Merging Clusters Cygnus A, A3667, and A2065
• Gravitating mass profiles of nearby galaxy clusters and relations with X-ray gas temperature, luminosity and mass
• Discovery of an ionized Fe-K edge in the z=3.91 Broad Absorption Line Quasar APM 08279+5255 with XMM-Newton
• The Physics of Cluster Mergers
• XMM-Newton observation of the distant (z=0.6) galaxy cluster RX J1120.1+4318
• Abell 2255: Increased Star Formation and AGN Activity in a Cluster-Cluster Merger
• Study of the Core of the Shapley Concentration: I.the Sample
• A study of the core of the Shapley Concentration: IV. Distribution of intercluster galaxies and supercluster properties
• On the mass distribution in the Shapley Supercluster inferred from X-ray observations
• Abundance gradients and the role of SNe in M87
• X-Ray Clusters in a CDM$+\Lambda$ Universe: A Direct, Large-Scale, High Resolution, Hydrodynamic Simulation
• Merging Binary Clusters
• A substructure analysis of the A3558 cluster complex
• Comparison of ASCA and ROSAT Cluster Temperatures: A2256, A3558 and AWM7
• The Formal Underpinnings of the Response Functions used in X-Ray Spectral Analysis
• BeppoSAX - ROSAT PSPC observations of the Shapley Supercluster: A3562
• X-Ray Observations of Cluster Mergers: Cluster Morphologies and Their Implications
• A study of the core of the Shapley Concentration: V. The A3528 complex: a young merger event?
• Radio Properties of the Shapley Concentration. IV. The A3528 Cluster Complex
• Radio emission from the A3571 cluster complex: the final stage of a cluster merger?
• A study of the core of the Shapley Concentration: VI. Spectral properties of galaxies
• Interaction in the Bimodal Galaxy Cluster A3528
• A BeppoSax view of the Centaurus Cluster
• Radio Study of X-ray Clusters I: A3528 --- a pre-merging cluster in the core of the Shapley Supercluster

Cited by in corpus (17)

• Probing the Dark Matter and Gas Fraction in Relaxed Galaxy Groups with X-ray observations from Chandra and XMM
• XMM-Newton EPIC background modeling for extended sources
• LOFAR discovery of a double radio halo system in Abell 1758 and radio/X-ray study of the cluster pair
• Properties of the cosmological filament between two clusters: A possible detection of a large-scale accretion shock by $Suzaku$
• Simulations of galactic winds and starbursts in galaxy clusters
• An XMM-Newton observation of the dynamically active binary cluster A1750
• Ni abundance in the core of the Perseus Cluster: an answer to the significance of resonant scattering
• Physical properties of the X-ray gas as a dynamical diagnosis for galaxy clusters
• A Spectroscopic Survey of the Fields of 28 Strong Gravitational Lenses: The Group Catalog
• Suppressed radio emission in supercluster galaxies: enhanced ram pressure in merging clusters?
• The Shapley super-cluster. New X-ray detections and mass distribution
• An X-ray and Radio Study of the Hubble Frontier Field Cluster Abell S1063
• Constraining the accretion geometry of the intermediate polar EX Hya using NuSTAR, Swift and Chandra observations
• Cosmic dance in the Shapley Concentration Core II. The uGMRT-MeerKAT view of filaments in the brightest cluster galaxies and tailed radio galaxies in the A3528 cluster complex
• Cosmic dance in the Shapley Concentration Core - I. A study of the radio emission of the BCGs and tailed radio galaxies
• Merger Dynamics of the Pair of Galaxy Clusters -- A399 and A401
• Detection of pure warm-hot intergalactic medium emission from a $7.2$ Mpc long filament in the Shapley supercluster using X-ray spectroscopy