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2008-01-14 - Article/Dans un journal avec peer-review - Anglais - 9 page(s)

Fivet Vanessa, Biémont Emile , Engström L., Lundberg H., Nilsson H., Palmeri Patrick , Quinet Pascal , "Radiative lifetime measurements and calculations in doubly ionized tantalum (Ta III)" in Journal of Physics : B Atomic Molecular & Optical Physics, 41, 1, 1-9, 015702

  • Edition : Institute of Physics, Bristol (United Kingdom)
  • Codes CREF : Physique atomique et moléculaire (DI1220), Mécanique quantique classique et relativiste (DI1211)
  • Unités de recherche UMONS : Astrophysique et spectroscopie (S804)
Texte intégral :

Abstract(s) :

(Anglais) Radiative lifetimes of six odd-parity levels belonging to the 5d26p configuration of doubly ionized tantalum (Ta III) have been measured using the time-resolved-laser-induced- fluorescence technique. Supporting theoretical calculations, including core-polarization effects, have been performed to model configuration interaction and to estimate branching fractions. The excellent agreement between the theoretical and experimental lifetimes allows us to assess the reliability of the 206 calculated transition probabilities. It is expected that this new set of results will be useful to astrophysicists for the investigation of the chemical composition of stars.

Identifiants :
  • DOI : 10.1088/0953-4075/41/1/015702