The abundance of phosphorus in the interstellar medium

Details The abundance of phosphorus in the interstellar medium The abundance of phosphorus in the interstellar medium

Aug 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986a%26a...164..179d&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 164, no. 1, Aug. 1986, p. 179-183. SERC-supported research.

Astronomy and Astrophysics

Astrophysics

21

Abundance, Astronomical Spectroscopy, Interstellar Chemistry, Interstellar Matter, Oscillator Strengths, Phosphorus, Electron Orbitals, Electron Transitions, Interstellar Gas, Line Spectra, Ultraviolet Radiation

Scientific paper

New oscillator strengths for P II resonance transitions are used in conjunction with published Copernicus observations to derive P II column densities toward 51 stars. It is found that phosphorus is: (a) undepleted along sightlines containing predominantly low density neutral gas and (b) depleted by approximately 0.5 dex in cold clouds. These results differ from the recent analysis of Jenkins et al., principally due to changes in the atomic data but also due to a consequential decrease in estimated b-values. The reliability of other atomic data currently adopted in analyses of interstellar observations is also briefly discussed.

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