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

Abstract

view Abstract Citations (24) References (18) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Lifetimes of excited states in Y I, Y II, and Zr I by beam-foil and beam-sputtering excitation. Andersen, T. ; Ramanujam, P. S. ; Bahr, K. Abstract 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. Publication: The Astrophysical Journal Pub Date: July 1978 DOI: 10.1086/156268 Bibcode: 1978ApJ...223..344A Keywords: 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; Solar Physics; Transition Probabilities full text sources ADS |