The Abundance of Interstellar Fluorine and Its Implications

Details The Abundance of Interstellar Fluorine and Its Implications The Abundance of Interstellar Fluorine and Its Implications

2006-11-02

arxiv.org/abs/astro-ph/0611066v1

Astrophys.J.655:285-298,2007

Astronomy and Astrophysics

Astrophysics

32 pages, 10 figures, Accepted to ApJ

Scientific paper

10.1086/510187

We report results from a survey of neutral fluorine (F I) in the interstellar medium. Data from the Far Ultraviolet Spectroscopic Explorer (FUSE) were used to analyze 26 lines of sight lying both in the galactic disk and halo, including lines to Wolf-Rayet stars and through known supernova remnants. The equivalent widths of fluorine resonance lines at 951.871 A and 954.827 A were measured or assigned upper limits and combined with a nitrogen curve of growth to obtain F I column densities. These column densities were then used to calculate fluorine depletions. Comparisons are made to the previous study of F I by Federman et al. (2005) and implications for F I formation and depletion are discussed.

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