activity
20082026
most citedCold, clumpy accretion onto an active supermassive black hole

182 citations · 2.3k across the 46 of their papers we have counts for

collaborators

48 papers

astro-ph.GA2026

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…

astro-ph.IM2026

Lynx2030 Science Analysis Group: Final Report

Lynx2030 Science Analysis Group, Simon R. Bandler, Laura W. Brenneman +51

The Lynx2030 Science Analysis Group (SAG) was convened to reassess the scientific goals and technical drivers of the Lynx mission concept amid a rapidly evolving astrophysics lands…

astro-ph.GA2026

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 (…

astro-ph.GA2025★ 1 cited

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…

astro-ph.GA2025★ 1 cited

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…

astro-ph.GA2025

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…

astro-ph.GA2025

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…

astro-ph.GA2024

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…

astro-ph.HE2023

Prospects for AGN Studies with AXIS: AGN Fueling -- Resolving Hot Gas inside Bondi Radius of SMBHs

Ka-Wah Wong, Helen Russell, Jimmy Irwin +2

Hot gas around a supermassive black hole (SMBH) should be captured within the gravitational "sphere of influence", characterized by the Bondi radius. Deep Chandra observations have…

astro-ph.GA2023

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…

astro-ph.GA2021★ 9 cited

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…

astro-ph.CO2019★ 61 cited

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…

astro-ph.GA2019★ 66 cited

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…

hep-ph2019★ 144 cited

Astrophysical limits on very light axion-like particles from Chandra grating spectroscopy of NGC 1275

Christopher S. Reynolds, M. C. David Marsh, Helen R. Russell +4

Axions/axion-like particles (ALPs) are a well motivated extension of the Standard Model and are generic within String Theory. The X-ray transparency of the intracluster medium (ICM…

astro-ph.GA2019★ 57 cited

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…

astro-ph.GA2019★ 154 cited

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…

astro-ph.GA2019★ 43 cited

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…

astro-ph.GA2018★ 36 cited

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…

astro-ph.GA2018★ 35 cited

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…

astro-ph.CO2018★ 17 cited

Discovery of a diffuse optical line emitting halo in the core of the Centaurus cluster of galaxies: Line emission outside the protection of the filaments

S. L. Hamer, A. C. Fabian, H. R. Russell +6

We present the discovery of diffuse optical line emission in the Centaurus cluster seen with the MUSE IFU. The unparalleled sensitivity of MUSE allows us to detect the faint emissi…

astro-ph.GA2018★ 61 cited

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…

astro-ph.CO2018★ 71 cited

A Universal Entropy Profile for the Hot Atmospheres of Galaxies and Clusters within

Iu. V. Babyk, B. R. McNamara, P. E. J. Nulsen +4

We present atmospheric gas entropy profiles for 40 early type galaxies and 110 clusters spanning several decades of halo mass, atmospheric gas mass, radio jet power, and galaxy typ…

astro-ph.GA2017★ 31 cited

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 $…

astro-ph.GA2017★ 27 cited

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…