NOAO >   Observing Info >   Approved Programs >   2010A-0097

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Proposal Information for 2010A-0097


PI: David Yong, Australian National University, yong@mso.anu.edu.au
Address: Mt Stromlo and Siding Spring Observatories, Private Bag, Weston Creek Post Office, ACT 2611, Australia

CoI: Amanda Karakas, Australian National University
CoI: Kenneth Hinkle, NOAO
CoI: Jorge Melendez, Universidade do Porto
CoI: Chiaki Kobayashi, Australian National University
CoI: Jae-Woo Lee, Sejong University

Title: Fluorine abundances in thin and thick disk stars

Abstract: Fluorine is an element whose nucleosynthetic origin remains unclear. The relative contributions to fluorine from (i) He burning in asymptotic giant branch stars, (ii) neutrino nucleosynthesis in massive-star core-collapse Type II supernovae and (iii) He burning in Wolf-Rayet stars continue to be debated. We propose to conduct a highly accurate differential study of the abundances of fluorine in a sample of thin disk and thick disk stars. By exploiting the known differences in chemical abundance patterns between the Galaxy's thin and thick disks, our observations will offer insight into (1) the origin of fluorine and (2) the chemical enrichment histories of the thin and thick disks.


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NOAO >   Observing Info >   Approved Programs >   2010A-0097

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