Transition probabilities in Nd(II) and the solar neodymium abundance

Robert S. Maier, Ward Whaling

Research output: Contribution to journalArticle

40 Scopus citations

Abstract

We have measured branching ratios for all the known transitions from nine levels in Nd+. We use the known mean lifetimes of four of these levels to compute transition probabilities for 60 transitions. We have measured the solar equivalent widths of 12 of these lines on the Preliminary Edition of the Kitt Peak Solar Atlas and compute a photospheric Nd abundance log( NNd NH)+12 = 1.26±0.14, using the solar model parameters of Righini and Rigutti based on the Mutschlecner model. The solar lines used in this computation are weak ( W λ<3×10-6), and the derived abundance has little dependence on the uncertainties of the solar model.

Original languageEnglish (US)
Pages (from-to)501-507
Number of pages7
JournalJournal of Quantitative Spectroscopy and Radiative Transfer
Volume18
Issue number5
DOIs
StatePublished - Nov 1977
Externally publishedYes

ASJC Scopus subject areas

  • Radiation
  • Atomic and Molecular Physics, and Optics
  • Spectroscopy

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