Physics
Scientific paper
Oct 1975
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975soph...44..257a&link_type=abstract
Solar Physics, vol. 44, Oct. 1975, p. 257-267.
Physics
92
Abundance, Atomic Excitations, Photosphere, Radiative Lifetime, Rare Earth Elements, Electron States, Line Spectra, Meteoritic Composition, Transition Probabilities, Wavelengths
Scientific paper
Radiative lifetimes for excited states in La II, Ce II, Pr II, Nd II, Sm II, Yb I, Yb II, and Lu II have been determined by means of the beam-foil technique or the zero-field level-crossing method. The lifetimes for La, Ce, Pr, Nd, Sm, and Yb are shorter by a factor of up to about 5 than those computed by summing the transition probabilities of Corliss and Bozman (1962). The large discrepancies between the abundance of La, Ce, Pr, Nd, and Sm in the solar photosphere and in meteorites are eliminated or greatly reduced if the abundance determinations of the solar photosphere are based on the gf values of Corliss and Bozman, corrected for by the present lifetimes.
Andersen Torsten
Petkov A. P.
Poulsen Ove
Ramanujam P. S.
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