The metal contents of two groups of galaxies

  title={The metal contents of two groups of galaxies},
  author={Yan Guillaume Grange and Jelle de Plaa and Jelle S. Kaastra and Norbert Werner and Frank Verbunt and Frits B. S. Paerels and C. P. de Vries Sron and Utrecht University and KIPACStanford and Columbia University},
  journal={Astronomy and Astrophysics},
Context. The hot gas in clusters and groups of galaxies is continuously being enriched with metals from supernovae and stars. It is well established that the enrichment of the gas with elements from oxygen to iron is mainly caused by supernova explosions. The origins of nitrogen and carbon are still being debated. Possible candidates include massive, metal-rich stars, early generations of massive stars, intermediate- or low-mass stars and asymptotic giant branch (AGB) stars. Aims. In this paper… Expand
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