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On the origin of fluorine in the Milky Way

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Title:
On the origin of fluorine in the Milky Way Authors:
Renda, Agostino; Fenner, Yeshe; Gibson, Brad K.; Karakas, Amanda I.; Lattanzio, John C.; Campbell, Simon; Chieffi, Alessandro; Cunha, Katia; Smith, Verne V. Affiliation:
AA(Centre for Astrophysics & Supercomputing, Swinburne University, Hawthorn, Victoria 3122, Australia), AB(Centre for Astrophysics & Supercomputing, Swinburne University, Hawthorn, Victoria 3122, Australia), AC(Centre for Astrophysics & Supercomputing, Swinburne University, Hawthorn, Victoria 3122, Australia), AD(Centre for Stellar & Planetary Astrophysics, School of Mathematical Sciences, Monash University, Clayton, Victoria 3800, Australia; Institute for Computational Astrophysics, Department of Astronomy & Physics, Saint Mary's University, Halifax, Nova Scotia, B3H 3C3, Canada), AE(Centre for Stellar & Planetary Astrophysics, School of Mathematical Sciences, Monash University, Clayton, Victoria 3800, Australia), AF(Centre for Stellar & Planetary Astrophysics, School of Mathematical Sciences, Monash University, Clayton, Victoria 3800, Australia), AG(Observatório Nacional, Rua General José Cristino 77, 20921 400 São Cristovão, Rio de Janeiro, Brazil), AH(Department of Physics, University of Texas at El Paso, El Paso, TX 79968, USA) Publication:
Monthly Notices of the Royal Astronomical Society, Volume 354, Issue 2, pp. 575-580. (MNRAS Homepage) Publication Date:
10/2004 Origin:
MNRAS Astronomy Keywords:
stars: abundances, stars: evolution, galaxies: evolution DOI:
10.1111/j.1365-2966.2004.08215.x Bibliographic Code:
2004MNRAS.354..575R

Abstract

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 multizone 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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