Lifetime measurements and calculations in Y+ and Y2+ ions

被引：71

作者：

Biemont, E. ^{[1
,2
]}

Blagoev, K. ^{[3
]}

Engstrom, L. ^{[4
]}

Hartman, H. ^{[5
]}

Lundberg, H. ^{[4
]}

Malcheva, G. ^{[3
]}

Nilsson, H. ^{[5
]}

Whitehead, R. Blackwell ^{[5
]}

Palmeri, P. ^{[1
]}

Quinet, P. ^{[1
,2
]}

机构：

[1] Univ Mons, UMONS, B-7000 Mons, Belgium

[2] Univ Liege, IPNAS, B-4000 Liege 1, Belgium

[3] Bulgarian Acad Sci, Inst Solid State Phys, BG-1784 Sofia, Bulgaria

[4] Lund Univ, Dept Phys, S-22100 Lund, Sweden

[5] Lund Univ, Lund Observ, S-22100 Lund, Sweden

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2011年 / 414卷 / 04期

基金：

瑞典研究理事会;

关键词：

atomic data; atomic processes; THEORETICAL OSCILLATOR-STRENGTHS; TRANSITION-PROBABILITIES; IONIZED-YTTRIUM; SPECTRUM; DIPOLE; YII;

D O I：

10.1111/j.1365-2966.2011.18637.x

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We report a new set oftheoretical transition probabilities in Y II, 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 32 048-44 569 cm(-1), obtained by the time-resolved laser-induced fluorescence method. A similar theoretical model, applied to Y III, 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 Y III.

引用

页码：3350 / 3359

页数：10

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