151 citations · 559 across the 11 of their papers we have counts for
19 papers
AGN Feedback in groups and clusters of galaxies
S. Raychaudhury, S. Giacintucci, E. O'Sullivan +5
The lack of very cool gas at the cores of groups and clusters of galaxies, even where the cooling time is significantly shorter than the Hubble time, has been interpreted as eviden…
A Joint GMRT/X-ray study of galaxy groups
E. O'Sullivan, S. Giacintucci, J. M. Vrtilek +4
We present results from combined low-frequency radio and X-ray studies of nearby galaxy groups. We consider two main areas: firstly, the evolutionary process from spiral-dominated,…
A statistically-selected Chandra sample of 20 galaxy clusters -- II. Gas properties and cool-core/non-cool core bimodality
Alastair J. R. Sanderson, Ewan O'Sullivan, Trevor J. Ponman +1
We investigate the thermodynamic and chemical structure of the intracluster medium (ICM) across a statistical sample of 20 galaxy clusters analysed with the Chandra X-ray satellite…
The PN.S Elliptical Galaxy Survey: the dark matter in NGC 4494
N. R. Napolitano, A. J. Romanowsky, L. Coccato +12
We present new Planetary Nebula Spectrograph observations of the ordinary elliptical galaxy NGC 4494, resulting in positions and velocities of 255 PNe out to 7 effective radii (25…
A GMRT multifrequency radio study of the isothermal core of the poor galaxy cluster AWM 4
S. Giacintucci, J. M. Vrtilek, M. Murgia +7
We present a detailed radio morphological study and spectral analysis of the wide-angle-tail radio source 4C +24.36 associated with the dominant galaxy in the relaxed galaxy cluste…
The nature of the ghost cavity in the NGC 741 group
Nazirah N. Jetha, Martin J. Hardcastle, Arif Babul +4
We discuss the effects of energy injection into the intra-group medium of the group of galaxies associated with NGC 741. The X-ray emission reveals a large bubble, which in the abs…