Astronomy and Astrophysics – Astrophysics
Scientific paper
Mar 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984a%26a...132..236b&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 132, no. 1, March 1984, p. 236-239. Research supported by the Science and Engi
Astronomy and Astrophysics
Astrophysics
77
Abundance, Line Spectra, Oscillator Strengths, Solar Spectra, Anomalies, Iron, Solar Atmosphere, Solar Radiation, Turbulence Effects
Scientific paper
A recent study of Fe I lines in the solar spectrum using Oxford oscillator strengths has shown that the mean solar abundance for the eight 2.2 eV lines is about 16 percent smaller than that for all lines in the range 0 eV-2.6 eV. To test whether this anomaly is due to errors in the Oxford oscillator strengths, the previous comparison of oscillator strengths for the 2.2 eV lines (which are apparently anomalous) and the 2.4 eV lines (which are apparently normal) has been repeated. The new measurements are in substantial agreement (approximately 1.5 percent) with those already reported. A solar anomaly is also discernable when the oscillator strengths of other authors are used. Possible errors in the interpretation of the solar spectrum are discussed and it is concluded that the anomaly is real.
Blackwell D. E.
Booth Andrew J.
Petford A. D.
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