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Lifetime measurements and calculations in Y+ and Y2+ ions
Astrophysique et Spectroscopie, Université de Mons - UMONS, B-7000 Mons, 20 Place du Parc, Belgium; IPNAS (Bât. B 15), Université de Liège, Sart-Tilman, B-4000 Liège 1, Belgium.
Institute of Solid State Physics, Bulgarian Academy of Sciences, Chaussee, BG-1784 Sofia, 72 Tzarigradsko, Bulgaria.
Department of Physics, Lund University, S-221 00 Lund, PO Box 118, Sweden.
Lund Observatory, Lund University, S-221 00 Lund, PO Box 43, Sweden.ORCID iD: 0000-0001-9853-2555
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2011 (English)In: Monthly notices of the Royal Astronomical Society, ISSN 0035-8711, E-ISSN 1365-2966, Vol. 414, no 4, p. 3350-3359Article in journal (Refereed) Published
Abstract [en]

We report a new set oftheoretical transition probabilities in Yii, obtained using a multiconfiguration relativistic Hartree-Fock method including core polarization. The overall quality of the calculations is assessed by comparisons with new and previous lifetime measurements. In this paper, we report new measurements of five lifetimes in the 4d5p and 5s5p configurations, in the energy range of 32048-44569 cm-1, obtained by the time-resolved laser-induced fluorescence method. A similar theoretical model, applied to Yiii, leads to results in good agreement with new laser measurements of two 5p levels obtained in this work and with previous beam-foil results for 5d and 6s levels. An extensive set of oscillator strengths is also proposed for Yiii.

Place, publisher, year, edition, pages
Oxford University Press, 2011. Vol. 414, no 4, p. 3350-3359
National Category
Atom and Molecular Physics and Optics
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URN: urn:nbn:se:mau:diva-63305DOI: 10.1111/j.1365-2966.2011.18637.xISI: 000293178600045Scopus ID: 2-s2.0-79959851118OAI: oai:DiVA.org:mau-63305DiVA, id: diva2:1808556
Available from: 2023-10-31 Created: 2023-10-31 Last updated: 2023-11-01Bibliographically approved

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Hartman, H.Nilsson, H.

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