PI: Carlos Abia, University of Granada, email@example.com
Address: Dpto. Fisica Teorica y del Cosmos, Universidad de Granada, 18071 Granada, Spain Spain
CoI: Katia Cunha, NOAO
Title: The origin of fluorine: the contribution by AGB stars
Abstract: The origin of fluorine is still unkown. Several sources are proposed for its production but until now there is observational evidence only in AGB stars. However, recent redeterminations of the F content in these stars has opened a discussion about the real contribution of AGB stars to the total F inventory and on the dependence of its production with the stellar metallicity. We will use high resolution spectroscopy to determine F abundances from HF lines in the K-band in a sample of Galactic SC-type carbon stars and extragalactic metal-poor AGB carbon stars to better evaluate the role of AGB stars in the evolution of the F abundance and the mechanism for its production in these stars.
Program Type: Standard/Galactic
Run 1 (2017A): GEM-S-SVC/PHNX -- 20.2hrs band 2 (GS-2017A-Q-62)
National Optical Astronomy Observatory, 950 North Cherry Avenue, P.O. Box 26732, Tucson, Arizona 85726, Phone: (520) 318-8000, Fax: (520) 318-8360