On the origin of fluorine in the Milky Way

Details On the origin of fluorine in the Milky Way On the origin of fluorine in the Milky Way

2004-10-25

arxiv.org/abs/astro-ph/0410580v1

Mon.Not.Roy.Astron.Soc. 354 (2004) 575

Astronomy and Astrophysics

Astrophysics

7 pages, 4 figures. MNRAS in press

Scientific paper

10.1111/j.1365-2966.2004.08215.x

The main astrophysical factories of fluorine (19F) are thought to be Type II supernovae, Wolf-Rayet stars, and the asymptotic giant branch (AGB) of intermediate mass stars. We present a model for the chemical evolution of fluorine in the Milky Way using a semi-analytic multi-zone chemical evolution model. For the first time, we demonstrate quantitatively the impact of fluorine nucleosynthesis in Wolf-Rayet and AGB stars. The inclusion of these latter two fluorine production sites provides a possible solution to the long-standing discrepancy between model predictions and the fluorine abundances observed in Milky Way giants. Finally, fluorine is discussed as a possible probe of the role of supernovae and intermediate mass stars in the chemical evolution history of the globular cluster omega Centauri.

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