Fluorine Abundances in AGB Carbon Stars: New Results?
Abstract
A recent reanalysis of the fluorine abundance in three Galactic Asymptotic Giant Branch (AGB) carbon stars (TX Psc, AQ Sgr and R Scl) by Abia et al. (2009) results in estimates of fluorine abundances systematically lower by ~0.8 dex on average, with respect to the sole previous estimates by Jorissen, Smith & Lambert (1992). The new F abundances are in better agreement with the predictions of full-network stellar models of low-mass (<3 Msolar) AGB stars.
- Publication:
-
Publications of the Astronomical Society of Australia
- Pub Date:
- September 2009
- DOI:
- 10.1071/AS08038
- Bibcode:
- 2009PASA...26..351A
- Keywords:
-
- nuclear reactions;
- nucleosynthesis;
- abundances;
- stars: abundances;
- stars: AGB;
- stars: carbon;
- stars: evolution