Radiative lifetimes and transition probabilities in Hf I and Hf III

Details Radiative lifetimes and transition probabilities in Hf I and Hf III Radiative lifetimes and transition probabilities in Hf I and Hf III

Jul 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009mnras.396.2289m&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 396, Issue 4, pp. 2289-2294.

Astronomy and Astrophysics

Astronomy

3

Atomic Data, Atomic Processes, Methods: Laboratory

Scientific paper

Radiative lifetimes of nine odd levels in Hf III (5d6p z3P0,1, z1D2, z3D1,2,3, z3F2,3,4) and of two odd levels in Hf I (5d6s26p z3D2,3) have been determined using Time-Resolved Laser-Induced Fluorescence. The investigated levels in Hf I were excited in a single-step process from the ground term (5d26s2 a3F), whereas in Hf III we started from either the ground term 5d2 a3F or the low-lying 5d6s a3D term. For all of the investigated levels, the lifetimes have been measured for the first time. A multiconfiguration relativistic Hartree-Fock method, including core-polarization effects, has been used to compute radiative lifetimes of 15 Hf III levels, including those measured in this work. Transition probabilities for 55 transitions in Hf III are also given.

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