340 citations · 2.5k across the 48 of their papers we have counts for
48 papers
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…
The splash beneath the largest radio bubble in a cluster core
H. R. Russell, P. E. J. Nulsen, A. C. Fabian +3
We present a 100 ks XRISM Resolve observation of the Ophiuchus cluster that measures turbulence and bulk motion in the wake of the largest radio bubble on the sky. We detect a sign…
Hidden (absorbed) Cooling Flows V: Groups and Galaxies including Spirals
A. C. Fabian, J. S. Sanders, G. J. Ferland +4
Cooling flows are observed in X-ray studies of the centres of cool core clusters, galaxy groups and individual elliptical galaxies. They are partly hidden from direct view by embed…
HST Observations within the Sphere of Influence of the Powerful Supermassive Black Hole in PKS0745-191
Julie Hlavacek-Larrondo, Hyunseop Choi, Minghao Guo +18
We present Space Telescope Imaging Spectrograph observations from the Hubble Space Telescope of the supermassive black hole (SMBH) at the center of PKS0745-191, a brightest cluster…
Hidden Cooling Flows in Elliptical Galaxies
L. R. Ivey, A. C. Fabian, J. S. Sanders +4
The radiative cooling time of hot gas in the cool cores of many galaxy clusters and massive elliptical galaxies drops in the centre to below 100 million years. The mass cooling rat…
Hidden Cooling Flows IV: More Details on Centaurus and the Efficiency of AGN Feedback in Clusters
A. C. Fabian, G. J. Ferland, J. S. Sanders +7
Cooling flows are common in galaxy clusters which have cool cores. The soft X-ray emission below 1 keV from the flows is mostly absorbed by cold dusty gas within the central coolin…
Consequences of a low-mass, high-pressure, star formation mode in early galaxies
A. C. Fabian, J. S. Sanders, G. J. Ferland +3
High resolution X-ray spectra reveal hidden cooling flows depositing cold gas at the centres of massive nearby early-type galaxies with little sign of normal star formation. Optica…
A cooling flow around the low-redshift quasar H1821+643
H. R. Russell, P. E. J. Nulsen, A. C. Fabian +7
H1821+643 is the nearest quasar hosted by a galaxy cluster. The energy output by the quasar, in the form of intense radiation and radio jets, is captured by the surrounding hot atm…
On the relation between mini-halos and AGN feedback in clusters of galaxies
A. Richard-Laferrière, J. Hlavacek-Larrondo, R. S. Nemmen +10
A variety of large-scale diffuse radio structures have been identified in many clusters with the advent of new state-of-the-art facilities in radio astronomy. Among these diffuse r…
A Multiwavelength Study of the Massive Cool Core Cluster MACS J1447.4+0827
M. Prasow-Émond, J. Hlavacek-Larrondo, C. L. Rhea +8
Clusters of galaxies are outstanding laboratories for understanding the physics of supermassive black hole feedback. Here, we present the first \textit{Chandra}, Karl G. Janksy Ver…
High-resolution VLA low radio frequency observations of the Perseus cluster: radio lobes, mini-halo and bent-jet radio galaxies
Marie-Lou Gendron-Marsolais, Julie Hlavacek-Larrondo, Reinout J. van Weeren +11
We present the first high-resolution 230-470 MHz map of the Perseus cluster obtained with the Karl G. Jansky Very Large Array. The high dynamic range and resolution achieved has al…
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…
AGN feedback in the Phoenix cluster
Ciro Pinto, Christopher J. Bambic, Jeremy S. Sanders +5
Active galactic nuclei (AGN) release a huge amount of energy into the intracluster medium (ICM) with the consequence of offsetting cooling and star formation (AGN feedback) in the…
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…
Do sound waves transport the AGN energy in the Perseus Cluster?
A. C. Fabian, S. A. Walker, H. R. Russell +3
The level of random motions in the intracluster gas lying between 20 and 60 kpc radius in the core of the Perseus cluster has been measured by the Hitomi Soft X-ray Spectrometer at…
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…
Cold, clumpy accretion onto an active supermassive black hole
Grant R. Tremblay, J. B. Raymond Oonk, Françoise Combes +22
Supermassive black holes in galaxy centres can grow by the accretion of gas, liberating energy that might regulate star formation on galaxy-wide scales. The nature of the gaseous f…
Constraining gas motions in the Centaurus cluster using X-ray surface brightness fluctuations and metal diffusion
S. A. Walker, J. S. Sanders, A. C. Fabian
We compare two different methods of constraining the characteristic velocity and spatial scales of gas motions in the X-ray bright, nearby Centaurus cluster, using new deep (760ks)…
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.…
X-ray Analysis of Filaments in Galaxy Clusters
S. A. Walker, P. Kosec, A. C. Fabian +1
We perform a detailed X-ray study of the filaments surrounding the brightest cluster galaxies in a sample of nearby galaxy clusters using deep Chandra observations, namely the Pers…
Gas Density Fluctuations in the Perseus Cluster: Clumping Factor and Velocity Power Spectrum
I. Zhuravleva, E. Churazov, P. Arevalo +9
X-ray surface brightness fluctuations in the core of the Perseus Cluster are analyzed, using deep observations with the Chandra observatory. The amplitude of gas density fluctuatio…
Turbulent Heating in Galaxy Clusters Brightest in X-rays
I. Zhuravleva, E. Churazov, A. A. Schekochihin +9
The hot, X-ray-emitting intracluster medium (ICM) is the dominant baryonic constituent of clusters of galaxies. In the cores of many clusters, radiative energy losses from the ICM…
Implications of Coronal Line Emission in NGC 4696
M. Chatzikos, R. J. R. Williams, G. J. Ferland +7
We announce a new facility in the spectral code CLOUDY that enables tracking the evolution of a cooling parcel of gas with time. For gas cooling from temperatures relevant to galax…