340 citations · 2.5k across the 48 of their papers we have counts for
26 papers · 1 filter
The Quiescent Sloshing Core of Abell 496 with XRISM
Angie Veronica, Thomas H. Reiprich, Naomi Ota +9
Gas motions provide insight into the dynamical history and physical processes within galaxy clusters. We investigate the kinematics of the ICM in the core of A496, a nearby, X-ray…
Measuring bulk flows of the intracluster medium in the Perseus and Coma galaxy clusters using XMM-Newton
J. S. Sanders, K. Dennerl, H. R. Russell +7
We demonstrate a novel technique for calibrating the energy scale of the XMM EPIC-pn detector, which allows us to measure bulk flows in the intracluster medium (ICM) of the Perseus…
Cosmology with XMM galaxy clusters: the X-CLASS/GROND catalogue and photometric redshifts
J. Ridl, N. Clerc, T. Sadibekova +11
The XMM Cluster Archive Super Survey (X-CLASS) is a serendipitously-detected X-ray-selected sample of 845 galaxy clusters based on 2774 XMM archival observations and covering appro…
Deep 230-470 MHz VLA Observations of the mini-halo in the Perseus Cluster
M. Gendron-Marsolais, J. Hlavacek-Larrondo, R. J. van Weeren +6
We present a low-frequency view of the Perseus cluster with new observations from the Karl G. Jansky Very Large Array (JVLA) at 230-470 MHz. The data reveal a multitude of new stru…
7.1 keV sterile neutrino constraints from X-ray observations of 33 clusters of galaxies with Chandra ACIS
F. Hofmann, J. S. Sanders, K. Nandra +2
Recently an unidentified emission line at 3.55 keV has been detected in X-ray spectra of clusters of galaxies. The line has been discussed as a possible decay signature of 7.1 keV…
Dynamical analysis of galaxy cluster merger Abell 2146
J. A. White, R. E. A. Canning, L. J. King +12
We present a dynamical analysis of the merging galaxy cluster system Abell 2146 using spectroscopy obtained with the Gemini Multi-Object Spectrograph on the Gemini North telescope.…
Feedback, scatter and structure in the core of the PKS 0745-191 galaxy cluster
J. S. Sanders, A. C. Fabian, J. Hlavacek-Larrondo +5
We present Chandra X-ray Observatory observations of the core of the galaxy cluster PKS 0745-191. Its centre shows X-ray cavities caused by AGN feedback and cold fronts with an ass…
A volume-limited sample of X-ray galaxy groups and clusters - II. X-ray cavity dynamics
E. K. Panagoulia, A. C. Fabian, J. S. Sanders +1
We present the results of our study of a volume-limited sample (z <= 0.071) of 101 X-ray galaxy groups and clusters, in which we explore the X-ray cavity energetics. Out of the 101…
The bow shock, cold fronts and disintegrating cool core in the merging galaxy group RXJ0751.3+5012
H. R. Russell, A. C. Fabian, B. R. McNamara +6
We present a new Chandra X-ray observation of the off-axis galaxy group merger RXJ0751.3+5012. The hot atmospheres of the two colliding groups appear highly distorted by the merger…
Bayes-X: a Bayesian inference tool for the analysis of X-ray observations of galaxy clusters
M. Olamaie, F. Feroz, K. J. B. Grainge +3
We present the first public release of our Bayesian inference tool, Bayes-X, for the analysis of X-ray observations of galaxy clusters. We illustrate the use of Bayes-X by analysin…
Linear Structures in the Core of the Coma Cluster of Galaxies
J. S. Sanders, A. C. Fabian, E. Churazov +4
The hot X-ray emitting plasma in galaxy clusters is predicted to have turbulent motions which can contribute around ten percent of the cluster's central energy density. We report d…
An XMM-Newton view of the merging activity in the Centaurus cluster
S. A. Walker, A. C. Fabian, J. S. Sanders
We report the results of XMM-Newton observations of the regions around the core of the Centaurus cluster where evidence for merging activity between the subgroup Cen 45 and the mai…
Probing the extreme realm of AGN feedback in the massive galaxy cluster, RX J1532.9+3021
J. Hlavacek-Larrondo, S. W. Allen, G. B. Taylor +7
We present a detailed Chandra, XMM-Newton, VLA and HST analysis of one of the strongest cool core clusters known, RX J1532.9+3021 (z=0.3613). Using new, deep 90 ks Chandra observat…
A multi-wavelength view of cooling vs. AGN heating in the X-ray luminous cool-core of Abell 3581
R. E. A. Canning, M. Sun, J. S. Sanders +12
We report the results of a multi-wavelength study of the nearby galaxy group, Abell 3581 (z=0.0218). This system hosts the most luminous cool core of any nearby group and exhibits…
Thermodynamics of the Coma Cluster Outskirts
A. Simionescu, N. Werner, O. Urban +10
We present results from a large mosaic of Suzaku observations of the Coma Cluster, the nearest and X-ray brightest hot, dynamically active, non-cool core system, focusing on the th…
X-ray emission from the Ultramassive Black Hole candidate NGC1277: implications and speculation on its origin
A. C. Fabian, J. S. Sanders, M. Haehnelt +2
We study the X-ray emission from NGC1277, a galaxy in the core of the Perseus cluster, for which van den Bosch et al. have recently claimed the presence of an UltraMassive Black Ho…
Velocity width measurements of the coolest X-ray emitting material in the cores of clusters, groups and elliptical galaxies
J. S. Sanders, A. C. Fabian
We examine the velocity width of cool X-ray emitting material using XMM-Newton Reflection Grating Spectrometer (RGS) spectra of a sample of clusters and group of galaxies and ellip…
Multiphase Signatures of AGN Feedback in Abell 2597
G. R. Tremblay, C. P. O'Dea, S. A. Baum +18
We present new Chandra X-ray observations of the brightest cluster galaxy (BCG) in the cool core cluster Abell 2597. The data reveal an extensive kpc-scale X-ray cavity network as…
A deep spectroscopic study of the filamentary nebulosity in NGC4696, the brightest cluster galaxy in the Centaurus cluster
R. E. A. Canning, A. C. Fabian, R. M. Johnstone +4
We present results of deep integral field spectroscopy observations using high resolution optical (4150-7200 A) VIMOS VLT spectra, of NGC 4696, the dominant galaxy in the Centaurus…
A wide Chandra view of the core of the Perseus cluster
A. C. Fabian, J. S. Sanders, S. W. Allen +12
We present new Chandra images of the X-ray emission from the core of the Perseus cluster of galaxies. The total observation time is now 1.4 Ms. New depressions in X-ray surface bri…
AGN feedback and iron enrichment in the powerful radio galaxy, 4C+55.16
J. Hlavacek-Larrondo, A. C. Fabian, J. S. Sanders +1
We present a detailed X-ray analysis of 4C+55.16, an unusual and interesting radio galaxy, located at the centre of a cool core cluster of galaxies. 4C+55.16 is X-ray bright (L(clu…
Constraints on turbulent velocity broadening for a sample of clusters, groups and elliptical galaxies using XMM-Newton
J. S. Sanders, A. C. Fabian, R. K. Smith
Using the width of emission lines in XMM-Newton Reflection Grating Spectrometer spectra, we place direct constraints on the turbulent velocities of the X-ray emitting medium in the…
Feedback under the microscope: thermodynamic structure and AGN driven shocks in M87
E. T. Million, N. Werner, A. Simionescu +5
(abridged) Using a deep Chandra exposure (574 ks), we present high-resolution thermodynamic maps created from the spectra of 16,000 independent regions, each with 1,000…
A thermally stable heating mechanism for the intracluster medium: turbulence, magnetic fields and plasma instabilities
M. W. Kunz, A. A. Schekochihin, S. C. Cowley +2
We consider the problem of self-regulated heating and cooling in galaxy clusters and the implications for cluster magnetic fields and turbulence. Viscous heating of a weakly collis…