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- W1990222010 abstract "view Abstract Citations (14) References (12) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Lifetimes of excited states in Pt I and Ir I measured by the beam-sputtering technique. Ramanujam, P. S. ; Andersen, T. Abstract Radiative lifetimes for low-lying excited states in Pt I and Ir I have been determined by means of the beam-sputtering excitation method combined with the delayed-coincidence technique to test the reliability of recent solar-abundance determinations of Pt and Ir. The Ir abundance should be increased by a factor of 4 to log A(Ir) = 1.45 + 0.2, whereas the Pt abundance remains unchanged. The new solar Pt and Ir abundances are both in agreement with values derived from carbonaceous chondrites. Subject headings: atomic processes - laboratory spectra - transition probabilities Publication: The Astrophysical Journal Pub Date: December 1978 DOI: 10.1086/156694 Bibcode: 1978ApJ...226.1171R Keywords: Abundance; Atomic Excitations; Iridium; Platinum; Radiative Lifetime; Solar Spectra; Sputtering; Ion Beams; Light Emission; Line Spectra; Transition Probabilities; Atomic and Molecular Physics; Element Abundances:Sun; Laboratory Spectra; Transition Probabilities full text sources ADS |" @default.
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- W1990222010 title "Lifetimes of excited states in Pt I and IR I measured by the beam-sputtering technique" @default.
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