NOAO >   Observing Info >   Approved Programs >   2017A-0088

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Program Information for 2017A-0088


PI: Carlos Abia, University of Granada, cabia@ugr.es
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

Scheduled Nights:
Run 1 (2017A):  GEM-S-SVC/PHNX -- 20.2hrs band 2 (GS-2017A-Q-62)


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NOAO >   Observing Info >   Approved Programs >   2017A-0088

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