On the absolute oscillator strength of HG II 3984 A and the presence of HG ions in AP stars

Details On the absolute oscillator strength of HG II 3984 A and the presence of HG ions in AP stars On the absolute oscillator strength of HG II 3984 A and the presence of HG ions in AP stars

Apr 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980a%26a....84..350d&link_type=abstract

Astronomy and Astrophysics, vol. 84, no. 3, Apr. 1980, p. 350-353.

Astronomy and Astrophysics

Astrophysics

31

A Stars, Line Spectra, Mercury Vapor, Molecular Oscillators, Stellar Spectra, Ultraviolet Spectra, Abundance, Metal Ions, Optical Resonance, Stellar Atmospheres, Stellar Structure

Scientific paper

An f-value for the Hg II line 3984 Å seen in Mn stars is derived from published laboratory and theoretical data. This value (loggf = -1.73 ± 0.20) is in agreement with previous "astrophysical" determinations for stars in which Hg I 4358 Å is visible. The implications of this agreement are discussed with reference to diffusion models proposed by Michaud and collaborators.
Absolute f-values for the ultraviolet Hg II resonance lines are also derived.

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