182 citations · 2.3k across the 46 of their papers we have counts for
27 papers · 1 filter
A CO Detection in a Massive Molecular Gas Flow in Abell 1795's Central Galaxy
J. A. Gray, H. R. Russell, F. Combes +6
We present new ALMA CO(2-1) observations of the central galaxy in the cool-core cluster Abell 1795, targeting the origin of extended molecular filaments. The filaments ext…
Mapping Gas Accretion and Stellar Kinematics to Sub-kiloparsec Scales in NGC 4696 with JWST/NIRSpec
Mathieu Marquis, Julie Hlavacek-Larrondo, Olivia Pereira +35
We present JWST/NIRSpec IFU spectroscopy of the central pc () of NGC 4696, the BCG in the Centaurus cluster. Leveraging the (…
Signatures of star formation inside galactic outflows
Dily Duan Yi Ong, Francesco D'Eugenio, Roberto Maiolino +13
Observations have suggested that galactic outflows contain substantial amounts of dense and clumpy molecular gas, creating favourable conditions for igniting star formation. Indeed…
A XRISM Observation of the Archetypal Radio-Mode Feedback System Hydra-A: Measurements of Atmospheric Motion and Constraints on Turbulent Dissipation
Tom Rose, B. R. McNamara, Julian Meunier +14
We present XRISM Resolve observations centered on Hydra-A, a redshift z = 0.054 brightest cluster galaxy which hosts one of the largest and most powerful FR-I radio sources in the…
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…
Cold Gas and Star Formation in the Phoenix Cluster with JWST
Michael Reefe, Michael McDonald, Marios Chatzikos +16
We present integral field unit observations of the Phoenix Cluster with the JWST Mid-infrared Instrument's Medium Resolution Spectrometer (MIRI/MRS). We focus this study on the mol…
Two distinct molecular cloud populations detected in massive galaxies
Tom Rose, B. R. McNamara, F. Combes +8
We present new ALMA observations of CO, CN, CS, HCN and HCO absorption seen against the bright and compact radio continuum sources of eight massive galaxies. Combined with ar…
A massive multiphase plume of gas in Abell 2390's brightest cluster galaxy
Tom Rose, B. R. McNamara, F. Combes +6
We present new ALMA CO(2-1) observations tracing solar masses of molecular gas in Abell 2390's brightest cluster galaxy, where half the gas is located in a one…
A Massive, Clumpy Molecular Gas Distribution and Displaced AGN in Zw 3146
A. N. Vantyghem, B. R. McNamara, C. P. O'Dea +8
We present a recent ALMA observation of the CO(1-0) line emission in the central galaxy of the Zw 3146 galaxy cluster (). We also present updated X-ray cavity measurement…
Constraining cold accretion onto supermassive black holes: molecular gas in the cores of eight brightest cluster galaxies revealed by joint CO and CN absorption
Tom Rose, A. C. Edge, F. Combes +18
To advance our understanding of the fuelling and feedback processes which power the Universe's most massive black holes, we require a significant increase in our knowledge of the m…
Anatomy of a Cooling Flow: The Feedback Response to Pure Cooling in the Core of the Phoenix Cluster
M. McDonald, B. R. McNamara, G. M. Voit +17
We present new, deep observations of the Phoenix cluster from the Chandra X-ray Observatory, the Hubble Space Telescope, and the Karl Jansky Very Large Array. These data provide an…
Ubiquitous cold and massive filaments in cool core clusters
V. Olivares, P. Salomé, F. Combes +20
Multi-phase filamentary structures around Brightest Cluster Galaxies are likely a key step of AGN-feedback. We observed molecular gas in 3 cool cluster cores: Centaurus, Abell S110…
Deep and narrow CO absorption revealing molecular clouds in the Hydra-A brightest cluster galaxy
Tom Rose, A. C. Edge, F. Combes +20
Active galactic nuclei play a crucial role in the accretion and ejection of gas in galaxies. Although their outflows are well studied, finding direct evidence of accretion has prov…
Origins of molecular clouds in early-type galaxies
Iu. V. Babyk, B. R. McNamara, P. D. Tamhane +3
We analyze observations of the hot atmospheres of 40 early spiral and elliptical galaxies. Using new temperature, density, cooling time, and mass profiles, we explore rel…
The imprints of AGN feedback within a supermassive black hole's sphere of influence
H. R. Russell, A. C. Fabian, B. R. McNamara +4
We present a new 300 ks Chandra observation of M87 that limits pileup to only a few per cent of photon events and maps the hot gas properties closer to the nucleus than has previou…
X-ray scaling relations of early-type galaxies
Iu. V. Babyk, B. R. McNamara, P. E. J. Nulsen +5
X-ray luminosity, temperature, gas mass, total mass, and their scaling relations are derived for 94 early-type galaxies using archival X-ray Observatory observations. Con…
A CO Detection in a Brightest Cluster Galaxy
A. N. Vantyghem, B. R. McNamara, A. C. Edge +7
We present ALMA Cycle 4 observations of CO(1-0), CO(3-2), and CO(3-2) line emission in the brightest cluster galaxy of RXJ0821+0752. This is one of the first detections of $…
Mystery solved: discovery of extended radio emission in the merging galaxy cluster Abell 2146
J. Hlavacek-Larrondo, M. -L. Gendron-Marsolais, D. Fecteau-Beaucage +11
Abell 2146 () is a massive galaxy cluster currently undergoing a spectacular merger in the plane of the sky with a bullet-like morphology. It was the first system in which…
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…
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…
HST imaging of the dusty filaments and nucleus swirl in NGC4696 at the centre of the Centaurus Cluster
A. C. Fabian, S. A. Walker, H. R. Russell +14
Narrow-band HST imaging has resolved the detailed internal structure of the 10 kpc diameter H alpha+[NII] emission line nebulosity in NGC4696, the central galaxy in the nearby Cent…
Chandra X-ray observations of the hyper-luminous infrared galaxy IRAS F15307+3252
J. Hlavacek-Larrondo, P. Gandhi, M. T. Hogan +6
Hyper-luminous infrared galaxies (HyLIRGs) lie at the extreme luminosity end of the IR galaxy population with L. They are thought to be closer counterpa…
Optical Emission Line Nebulae in Galaxy Cluster Cores 1: The Morphological, Kinematic and Spectral Properties of the Sample
S. L. Hamer, A. C. Edge, A. M. Swinbank +9
We present an Integral Field Unit survey of 73 galaxy clusters and groups with the VIsible Multi Object Spectrograph (VIMOS) on VLT. We exploit the data to determine the H gas d…
High Radio Frequency Properties and Variability of Brightest Cluster Galaxies
M. T. Hogan, A. C. Edge, J. E. Geach +15
We consider the high radio frequency (15 GHz - 353 GHz) properties and variability of 35 Brightest Cluster Galaxies (BCGs). These are the most core-dominated sources drawn from a p…