Physics
Scientific paper
Jul 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984esasp.218..151h&link_type=abstract
In ESA Fourth European IUE Conf. p 151-155 (SEE N84-35135 24-88)
Physics
Depletion, Hydrogen, Interstellar Chemistry, Line Of Sight, Abundance, Interstellar Gas, Iue, Vapor Phases
Scientific paper
The density dependence of depletion for 14 elements in the interstellar medium was studied using gas phase abundance data, the column density of hydrogen, N(H), and the mean space density of hydrogen, n(H). The depletion estimates of many elements correlate much better with n(H) than with N(H), while for Zn, O, N and D there is virtually no correlation with n(H). In the interstellar medium, it appears that depletion processes are not confined to dense clouds. Large variations in interstellar deuterium abundance are not correlated with either density parameter, casting doubt on suggestions that deuterium depletion may be substantial.
Bromage Gordon E.
Gry Cecile
Harris Alan W.
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