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The velocity structure of the Intracluster Medium of the Centaurus cluster
E. Gatuzz, J. S. Sanders, R. Canning +7
There are few direct measurements of ICM velocity structure, despite its importance for understanding clusters. We present a detailed analysis of the velocity structure of the Cent…
Revealing a Highly-Dynamic Cluster Core in Abell 1664 with Chandra
Michael S. Calzadilla, Helen R. Russell, Michael McDonald +11
We present new, deep (245 ks) Chandra observations of the galaxy cluster Abell 1664 (). These images reveal rich structure, including elongation and accompanying compre…
Hydrostatic Chandra X-ray analysis of SPT-selected galaxy clusters - I. Evolution of profiles and core properties
J. S. Sanders, A. C. Fabian, H. R. Russell +1
We analyse Chandra X-ray Observatory observations of a set of galaxy clusters selected by the South Pole Telescope using a new publicly-available forward-modelling projection code,…
The Mass Distribution of the Unusual Merging Cluster Abell 2146 from Strong Lensing
Joseph E. Coleman, Lindsay J. King, Masamune Oguri +11
Abell 2146 consists of two galaxy clusters that have recently collided close to the plane of the sky, and it is unique in showing two large shocks on $\textit{Chandra X-ray Observa…
The Distribution of Dark and Luminous Matter in the Unique Galaxy Cluster Merger Abell 2146
Lindsay J. King, Douglas I. Clowe, Joseph E. Coleman +9
Abell 2146 ( = 0.232) consists of two galaxy clusters undergoing a major merger. The system was discovered in previous work, where two large shock fronts were detected using the…
Detecting edges in the X-ray surface brightness of galaxy clusters
J. S. Sanders, A. C. Fabian, H. R. Russell +2
The effects of many physical processes in the intracluster medium of galaxy clusters imprint themselves in X-ray surface brightness images. It is therefore important to choose opti…
AMI observations of ten CLASH galaxy clusters: SZ and X-ray data used together to determine cluster dynamical states
Clare Rumsey, Malak Olamaie, Yvette C. Perrott +7
Using Arcminute Microkelvin Imager (AMI) SZ observations towards ten CLASH clusters we investigate the influence of cluster mergers on observational galaxy cluster studies. Althoug…
A giant radio halo in the cool core cluster CL1821+643
A. Bonafede, H. T. Intema, M. Brüggen +8
Giant radio halos are Mpc-size sources found in some merging galaxy clusters. The synchrotron emitting electrons are thought to be (re)accelerated by plasma turbulence induced by t…
Massive molecular gas flows in the Abell 1664 brightest cluster galaxy
H. R. Russell, B. R. McNamara, A. C. Edge +14
We report ALMA Early Science CO(1-0) and CO(3-2) observations of the brightest cluster galaxy (BCG) in Abell 1664. The BCG contains 1.1x10^{10} solar masses of molecular gas divide…
Radiative efficiency, variability and Bondi accretion onto massive black holes: from mechanical to quasar feedback in brightest cluster galaxies
H. R. Russell, B. R. McNamara, A. C. Edge +3
We examine unresolved nuclear X-ray sources in 57 brightest cluster galaxies to study the relationship between nuclear X-ray emission and accretion onto supermassive black holes (S…
Herschel observations of extended atomic gas in the core of the Perseus cluster
Rupal Mittal, J. B. Raymond Oonk, Gary J. Ferland +11
We present Herschel observations of the core of the Perseus cluster of galaxies. The brightest cluster galaxy, NGC 1275, is surrounded by a network of filaments previously imaged e…
Shock fronts, electron-ion equilibration and ICM transport processes in the merging cluster Abell 2146
H. R. Russell, B. R. McNamara, J. S. Sanders +8
We present a new 400 ks Chandra X-ray observation of the merging galaxy cluster Abell 2146. This deep observation reveals detailed structure associated with the major merger event…
The X-ray luminous cluster underlying the z = 1.04 quasar PKS1229-021
H. R. Russell, A. C. Fabian, G. B. Taylor +5
We present a 100 ks Chandra observation studying the extended X-ray emission around the powerful z=1.04 quasar PKS1229-021. The diffuse cluster X-ray emission can be traced out to…
The Relation Between Line Emission and Brightest Cluster Galaxies in Three Exceptional Clusters: Evidence for Gas Cooling from the ICM
S. L. Hamer, A. C. Edge, A. M. Swinbank +5
There is a strong spatial correlation between brightest cluster galaxies (BCGs) and the peak density and cooling rate of the intra-cluster medium (ICM). In this paper we combine in…
Herschel observations of the Centaurus cluster - the dynamics of cold gas in a cool core
Rupal Mittal, Christopher P. O'Dea, Gary Ferland +15
Brightest cluster galaxies (BCGs) in the cores of galaxy clusters have distinctly different properties from other low redshift massive ellipticals. The majority of the BCGs in cool…
Sunyaev-Zel'dovich observation of the Bullet-like cluster Abell 2146 with the Arcminute Microkelvin Imager
Carmen Rodriguez-Gonzalvez, Malak Olamaie, Matthew L. Davies +18
We present 13.9-18.2 GHz observations of the Sunyaev-Zel'dovich (SZ) effect towards Abell 2146 using the Arcminute Microkelvin Imager (AMI). The cluster is detected with a peak SNR…
Deep high-resolution X-ray spectra from cool-core clusters
J. S. Sanders, A. C. Fabian, K. A. Frank +2
We examine deep XMM-Newton Reflection Grating Spectrometer (RGS) spectra from the cores of three X-ray bright cool core galaxy clusters, Abell 262, Abell 3581 and HCG 62. Each of t…