activity
20102025
most citedCold, clumpy accretion onto an active supermassive black hole

182 citations · 771 across the 16 of their papers we have counts for

collaborators

16 papers

astro-ph.GA2025

A Deep Chandra View of Abell 2597: Bubbles, Shocks, Cold Fueling, and a Plasma Depletion Layer

Osase Omoruyi, Grant Tremblay, Stefi A. Baum +14

To examine how AGN feedback shapes the intracluster medium (ICM) and fuels black hole accretion in the cool-core galaxy cluster Abell 2597, we present deep (600 ks) Chandra X…

astro-ph.HE2025★ 1 cited

Deep Chandra X-ray Observations of Abell 2029: the Merger History of a Relaxed, Strong Cool Core Cluster

Courtney B. Watson, Elizabeth L. Blanton, Scott W. Randall +2

We present results from very deep (485 ks) Chandra X-ray observations of the relaxed, cool core cluster Abell 2029 (z = 0.0767). A2029 hosts one of the longest, most continuous slo…

astro-ph.CO2024★ 1 cited

Understanding the Nature of the Ultra-Steep Spectrum Diffuse Radio Source in the Galaxy Cluster Abell 272

Arthur Whyley, Scott W. Randall, Tracy E. Clarke +7

Ultra-steep spectrum (USS) radio sources with complex filamentary morphologies are a poorly understood subclass of diffuse radio source found in galaxy clusters. They are character…

astro-ph.HE2018★ 29 cited

The Megaparsec-scale Gas-sloshing Spiral in the Remnant Cool Core Cluster Abell 1763

E. M. Douglass, E. L. Blanton, S. W. Randall +4

We present a multiwavelength study of the massive galaxy cluster Abell 1763 at redshift z = 0.231. Image analysis of a 19.6 ks Chandra archival observation reveals a cluster-wide s…

astro-ph.CO2017★ 63 cited

Chandra and JVLA observations of HST Frontier Fields cluster MACS J0717.5+3745

R. J. van Weeren, G. A. Ogrean, C. Jones +24

To investigate the relationship between thermal and non-thermal components in merger galaxy clusters, we present deep JVLA and Chandra observations of the HST Frontier Fields clust…

astro-ph.GA2016★ 182 cited

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…

astro-ph.HE2015★ 136 cited

A Very Deep Chandra Observation of the Galaxy Group NGC 5813: AGN Shocks, Feedback, and Outburst History

S. W. Randall, P. E. J. Nulsen, C. Jones +11

We present results from a very deep (650 ks) Chandra X-ray observation of the galaxy group NGC~5813, the deepest Chandra observation of a galaxy group to date. Earlier observations…

astro-ph.CO2015★ 4 cited

Resolving the Merging Planck Cluster PLCK G147.3-16.6 with GISMO

T. Mroczkowski, A. Kovács, E. Bulbul +6

The satellite has recently completed an all-sky galaxy cluster survey exploiting the thermal Sunyaev-Zel'dovich (SZ) effect to locate some of the most massive systems obse…

astro-ph.CO2013★ 25 cited

Chandra View of the Ultra-Steep Spectrum Radio Source in Abell 2443: Merger Shock-Induced Compression of Fossil Radio Plasma?

T. E. Clarke, S. W. Randall, C. L. Sarazin +2

We present a new Chandra X-ray observation of the intracluster medium in the galaxy cluster Abell 2443, hosting an ultra-steep spectrum radio source. The data reveal that the intra…

astro-ph.CO2013★ 40 cited

Complex diffuse radio emission in the merging PLANCK ESZ cluster Abell 3411

R. J. van Weeren, K. Fogarty, C. Jones +7

We present VLA radio and Chandra X-ray observations of the merging galaxy cluster Abell 3411. For the cluster, we find an overall temperature of 6.4 keV and an X-ray luminosity of…

astro-ph.CO2013★ 42 cited

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…

astro-ph.CO2012★ 23 cited

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…

astro-ph.CO2011★ 126 cited

A Very Deep Chandra Observation of Abell 2052: Bubbles, Shocks, and Sloshing

E. L. Blanton, S. W. Randall, T. E. Clarke +4

We present first results from a very deep (~650 ksec) Chandra X-ray observation of Abell 2052, as well as archival VLA radio observations. The data reveal detailed structure in the…

astro-ph.CO2010★ 29 cited

The Merger Environment of the WAT Hosting Cluster Abell 562

E. M. Douglass, Elizabeth L. Blanton, T. E. Clarke +2

We present a Chandra X-ray observation and VLA radio observations of the nearby (z=0.11) galaxy cluster Abell 562 and the wide angle tail (WAT) radio source 0647+693. The cluster d…

astro-ph.CO2010★ 39 cited

Radio and Deep Chandra Observations of the Disturbed Cool Core Cluster Abell 133

S. W. Randall, T. E. Clarke, P. E. J. Nulsen +4

We present results based on new Chandra and multi-frequency radio observations of the disturbed cool core cluster Abell 133. The diffuse gas has a complex bird-like morphology, wit…

astro-ph.CO2010★ 31 cited

Active galactic nucleus feedback in clusters of galaxies

Elizabeth L. Blanton, T. E. Clarke, Craig L. Sarazin +2

Observations made during the last ten years with the Chandra X-ray Observatory have shed much light on the cooling gas in the centers of clusters of galaxies and the role of active…