Lifetimes of excited states in Y I, Y II, and Zr I by beam-foil and beam-sputtering excitation

Details Lifetimes of excited states in Y I, Y II, and Zr I by beam-foil and beam-sputtering excitation Lifetimes of excited states in Y I, Y II, and Zr I by beam-foil and beam-sputtering excitation

Jul 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978apj...223..344a&link_type=abstract

Astrophysical Journal, Part 1, vol. 223, July 1, 1978, p. 344-349. Research supported by the Danish State Research Foundation.

Astronomy and Astrophysics

Astrophysics

18

Abundance, Atomic Excitations, Ion Beams, Photosphere, Radiative Lifetime, Sputtering, Transition Probabilities, Yttrium, Zirconium, Decay, Foils (Materials), Graphs (Charts), Line Spectra, Metal Ions, Solar Atmosphere, Wavelengths

Scientific paper

Radiative lifetimes have been determined by beam-foil and beam-sputtering excitation for some excited states in Y I, Y II, and Zr I to test the reliability of the transition probabilities used so far for solar abundance determinations of yttrium and zirconium. The yttrium abundance in the sun should be increased by a factor of about 2 to log A(Y) = 2.35 + or - 0.20 by using the new transition probabilities, whereas the zirconium abundance should remain unchanged.

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