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A Catalogue and Analysis of X-ray luminosities of Early-type galaxies
Ewan O'Sullivan, Duncan A. Forbes, Trevor J. Ponman
We present a catalogue of X-ray luminosities for 401 early-type galaxies, of which 136 are based on newly analysed ROSAT PSPC pointed observations. The remaining luminosities are t…
X-ray luminosities of galaxies in groups
Stephen F. Helsdon, Trevor J. Ponman, Ewan O'Sullivan +1
We have derived the X-ray luminosities of a sample of galaxies in groups, making careful allowance for contaminating intragroup emission. The L_X:L_B and L_X:L_{FIR} relations of s…
The X-ray Emission in Post-Merger Ellipticals
Ewan O'Sullivan, Duncan A. Forbes, Trevor J. Ponman
The evolution in X-ray properties of early-type galaxies is largely unconstrained. In particular, little is known about how, and if, remnants of mergers generate hot gas halos. Her…