Abstract
Radiative lifetime measurements were performed with time-resolved laser-inducedfluorescence techniques for 47 levels of the astrophysically important ionSm1+ over theenergy range 21 000–36 000 cm−1. The new results have been compared with previous measurements but also withtheoretical calculations taking configuration interactions and core-polarization effects intoaccount, and a satisfying agreement has been found for many levels of this complex ion.New calculated transition probabilities are deduced from the experimental lifetimes andfrom the theoretical branching fractions for 162 transitions of astrophysical interest. Theseresults will help astrophysicists in the quantitative investigation of the chemicalcomposition of CP stars.
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