Abundance profiles and cool cores in galaxy groups

  title={Abundance profiles and cool cores in galaxy groups},
  author={Ria Johnson and Alexis Finoguenov and Trevor J. Ponman and Jesper R. Rasmussen and Alastair J. R. Sanderson},
  journal={Monthly Notices of the Royal Astronomical Society},
Using data from the two-dimensional XMM―Newton Group Survey (2dXGS), we have examined the abundance profile properties of both cool core (CC) and non-cool core (NCC) galaxy groups. The 10 NCC systems in our sample represent a population which to date has been poorly studied in the group regime. Fitting the abundance profiles as a linear function of log radius, we find steep abundance gradients in CC systems, with a slope of ―0.54 ± 0.07. In contrast, NCC groups have profiles consistent with… 
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