448 citations · 4.1k across the 101 of their papers we have counts for
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The baryon budget on the galaxy group/cluster boundary
Alastair J. R. Sanderson, Ewan O'Sullivan, Trevor J. Ponman +4
We present a study of the hot gas and stellar content of 5 optically-selected poor galaxy clusters, including a full accounting of the contribution from intracluster light (ICL) an…
Recurrent radio outbursts at the center of the NGC1407 galaxy group
Simona Giacintucci, Ewan O'Sullivan, Tracy E. Clarke +6
We present deep Giant Metrewave Radio Telescope (GMRT) radio observations at 240, 330 and 610 MHz of the complex radio source at the center of the NGC1407 galaxy group. Previous GM…
A Giant Metrewave Radio Telescope/Chandra view of IRAS 09104+4109: A type 2 QSO in a cooling flow
Ewan O'Sullivan, Simona Giacintucci, Arif Babul +8
IRAS 09104+4109 is a rare example of a dust enshrouded type 2 QSO in the centre of a cool-core galaxy cluster. Previous observations of this z=0.44 system showed that as well as po…
The Baryonic Halos of Elliptical Galaxies: Radial Distribution of Globular Clusters and Diffuse Hot Gas
Duncan A. Forbes, Trevor Ponman, Ewan O'Sullivan
For a sample of 9 well-studied giant ellipticals we compare the projected radial distribution of their red and blue globular cluster (GC) subpopulations with their host galaxy stel…
The ELIXR Galaxy Survey. II: Baryons and Dark Matter in an Isolated Elliptical Galaxy
Philip J. Humphrey, David A. Buote, Ewan O'Sullivan +1
The Elliptical Isolated X-ray (ElIXr) Galaxy Survey is a volume-limited (<110Mpc) study of optically selected, isolated, Lstar elliptical galaxies, to provide an X-ray census of ga…
Studying the asymmetry of the GC population of NGC 4261
P. Bonfini, A. Zezas, M. Birkinshaw +5
We present an analysis of the Globular Cluster (GC) population of the elliptical galaxy NGC 4261 based on HST WFPC2 data in the B, V and I bands. We study the spatial distribution…