The detection of interstellar fluorine in the line of sight toward Delta Scorpii

Details The detection of interstellar fluorine in the line of sight toward Delta Scorpii The detection of interstellar fluorine in the line of sight toward Delta Scorpii

Jul 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981apj...247l..39s&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor, vol. 247, July 1, 1981, p. L39-L41.

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11

Astronomical Spectroscopy, Fluorine, Interstellar Gas, Abundance, Gas Density, Line Spectra, Spectral Line Width

Scientific paper

The resonance line of F I at 954.825 A is detected in the interstellar spectra of Delta Sco, and possibly Delta Ori, and upper limits are obtained toward five other stars. It is noted that the equivalent width for Delta Sco of 10.9(+4.5, -3.1) in milliangstroms corresponds to a column density of 1.52(+0.60, -0.43) x 10 to the 13th/sq cm and a depletion of -0.53(+0.15, -0.14) dex. For the other lines of sight, depletions of at least 0.1-0.5 dex are inferred. The results are discussed in the context of current theories of the depletion process.

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