The abundance of oxygen in the interstellar medium

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

Jun 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985a%26a...147...89k&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 147, no. 1, June 1985, p. 89-92. Research supported by the Science and Enginee

Astronomy and Astrophysics

Astrophysics

30

Abundance, Astronomical Spectroscopy, Gas Density, Interstellar Gas, Oxygen, Hydrogen, Stellar Composition, Ultraviolet Spectra

Scientific paper

O I equivalent widths observed by the Copernicus satellite and Doppler widths determined from curves-of-growth for weak N I lines are used to rederive column densities towards 26 early-type stars. Oxygen is found to have a mean abundance of approximately 50 percent of its solar value towards both reddened and unreddened stars. In addition, there appears to be no correlation between depletion and total hydrogen column density, in contrast to the results of York et al. (1983), who found a greater depletion for sightlines with a log of the total hydrogen column density of less than 20.5.

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