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Experimental oscillator strengths in Th II

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Author

  • Hampus Nilsson
  • Z G Zhang
  • Hans Lundberg
  • Sveneric Johansson
  • Birgitta Nordström

Summary, in English

We have measured radiative lifetimes of ten Th II levels by using thelaser-induced fluorescence technique and branching fractions withFourier transform spectroscopy. By combining the new branching fractionswith a total of 23 lifetimes, from the present work and frommeasurements by Simonsen et al. (cite{Simonsen}), absolute oscillatorstrengths for 180 lines have been derived. Some of these new f-valuesreported are relevant for radioactive dating of stars.

Publishing year

2002

Language

English

Pages

368-377

Publication/Series

Astronomy & Astrophysics

Volume

382

Issue

1

Document type

Journal article

Publisher

EDP Sciences

Topic

  • Astronomy, Astrophysics and Cosmology
  • Atom and Molecular Physics and Optics

Keywords

  • ATOMIC DATA
  • STARS: EVOLUTION
  • GALAXY: EVOLUTION

Status

Published

ISBN/ISSN/Other

  • ISSN: 0004-6361