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Fluorine Abundances in AGB Carbon Stars: New Results?

Published online by Cambridge University Press:  05 March 2013

C. Abia ,
P. de Laverny ,
A. Recio-Blanco ,
I. Domínguez ,
S. Cristallo  and
O. Straniero
C. Abia*
Affiliation:
Dpto. Física Teórica y del Cosmos, Universidad de Granada, 18071 Granada, Spain
P. de Laverny
Affiliation:
Observatoire de la Côte d'Azur, Dpt. Cassiopée UMR 6202, 06304 Nice Cedex 4, France
A. Recio-Blanco
Affiliation:
Observatoire de la Côte d'Azur, Dpt. Cassiopée UMR 6202, 06304 Nice Cedex 4, France
I. Domínguez
Affiliation:
Dpto. Física Teórica y del Cosmos, Universidad de Granada, 18071 Granada, Spain
S. Cristallo
Affiliation:
INAF-Osservatorio di Collurania, 64100 Teramo, Italy
O. Straniero
Affiliation:
INAF-Osservatorio di Collurania, 64100 Teramo, Italy
*
DCorresponding author. Email: cabia@ugr.es
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Abstract

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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 M⊙) AGB stars.

Keywords

nuclear reactions, nucleosynthesis, abundancesstars: abundancesstars: AGBstars: carbonstars : evolution
Type
Observations
Information
Publications of the Astronomical Society of Australia , Volume 26 , Issue 3 , 2009 , pp. 351 - 353
Copyright
Copyright © Astronomical Society of Australia 2009

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