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Measurement of lifetimes by laser-induced fluorescence and determination of transition probabilities of astrophysical interest in NdIII

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Author

Summary, in English

Selective lifetime measurements by time-resolved laser-induced fluorescence spectroscopy for 5 levels belonging to the 4f(3)5d configuration of doubly ionized neodymium provide a first and useful experimental test of the relativistic Hartree-Fock calculations in this ion of astrophysical interest. As a consequence, the accuracy of the transition probabilities deduced in the present work is well assessed. These new data are expected to help astrophysicists in the future to refine the analysis of the composition of chemically peculiar stars which frequently show large overabundances of lanthanides when compared to the solar system standards.

Department/s

Publishing year

2002

Language

English

Pages

724-732

Publication/Series

Astronomy & Astrophysics

Volume

385

Issue

2

Document type

Journal article

Publisher

EDP Sciences

Topic

  • Atom and Molecular Physics and Optics

Keywords

  • stars : chemically peculiar
  • atomic data
  • atomic processes

Status

Published

ISBN/ISSN/Other

  • ISSN: 0004-6361