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 language||English (US)|
|Number of pages||7|
|Journal||Journal of Quantitative Spectroscopy and Radiative Transfer|
|State||Published - Nov 1977|
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics