Contrasting copper evolution in Omega Centauri and the Milky Way

Details Contrasting copper evolution in Omega Centauri and the Milky Way Contrasting copper evolution in Omega Centauri and the Milky Way

2007-03-29

arxiv.org/abs/astro-ph/0703760v1

Mon.Not.Roy.Astron.Soc.378:L59-L63,2007

Astronomy and Astrophysics

Astrophysics

5 pages, 4 figures; accepted for publication in MNRAS Letters

Scientific paper

10.1111/j.1745-3933.2007.00320.x

Despite the many studies on stellar nucleosynthesis published so far, the scenario for the production of Cu in stars remains elusive. In particular, it is still debated whether copper originates mostly in massive stars or type Ia supernovae. To answer this question, we compute self-consistent chemical evolution models taking into account the results of updated stellar nucleosynthesis. By contrasting copper evolution in Omega Cen and the Milky Way, we end up with a picture where massive stars are the major responsible for the production of Cu in Omega Cen as well as the Galactic disc.

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