448 citations · 4.1k across the 101 of their papers we have counts for
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The origin of the X-ray, radio and HI structures in the NGC 5903 galaxy group
Ewan O'Sullivan, Konstantinos Kolokythas, Nimisha G. Kantharia +3
The NGC 5903 galaxy group is a nearby (~30 Mpc) system of ~30 members, dominated by the giant ellipticals NGC 5903 and NGC 5898. The group contains two unusual structures, a ~110 k…
The Complete Local Volume Groups Sample - I. Sample Selection and X-ray Properties of the High-Richness Subsample
Ewan O'Sullivan, Trevor J. Ponman, Konstantinos Kolokythas +7
We present the Complete Local-Volume Groups Sample (CLoGS), a statistically complete optically-selected sample of 53 groups within 80 Mpc. Our goal is to combine X-ray, radio and o…
NGC 741 - Mergers and AGN feedback on galaxy group scale
G. Schellenberger, J. M. Vrtilek, L. David +5
Low mass galaxy cluster systems and groups play an essential role in upcoming cosmological studies such as those to be carried out with eROSITA. Though the effects of active galact…
The Presence of Thermally Unstable X-ray Filaments and the Production of Cold Gas in the NGC 5044 Group
Laurence P. David, Jan Vrtilek, Ewan O'Sullivan +3
We present the results of a deep Chandra observation of the X-ray bright, moderate cooling flow group NGC 5044 along with the observed correlations between the ionized, atomic, and…
Constraining the Physical State of the Hot Gas Halos in NGC 4649 and NGC 5846
Alessandro Paggi, Dong-Woo Kim, Craig Anderson +15
We present results of a joint \textit{Chandra}/\textit{XMM-Newton} analysis of the early-type galaxies NGC 4649 and NGC 5846 aimed at investigating differences between mass profile…
Disturbed Fossil Group Galaxy NGC 1132
Dong-Woo Kim, Craig Anderson, Doug Burke +10
We have analyzed the Chandra archival data of NGC 1132, a well-known fossil group, i.e. a system expected to be old and relaxed long after the giant elliptical galaxy assembly. Ins…