BEAM-LASER LIFETIME MEASUREMENTS FOR LOW-LYING LEVELS IN CRII

被引：42

作者：

PINNINGTON, EH ^{[1
]}

JI, Q ^{[1
]}

GUO, B ^{[1
]}

BERENDS, RW ^{[1
]}

VANHUNEN, J ^{[1
]}

BIEMONT, E ^{[1
]}

机构：

[1] UNIV LIEGE,INST ASTROPHYS,B-4000 LIEGE,BELGIUM

来源：

CANADIAN JOURNAL OF PHYSICS | 1993年 / 71卷 / 9-10期

关键词：

D O I：

10.1139/p93-073

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Lifetimes have been measured for 14 levels belonging to the z P-4(0), z 4D0, z P-6(0), z 6D0, and z F-6(0) terms of CrII using laser-induced fluorescence of a fast beam. The results are compared with earlier LIF and beam-foil measurements and with the calculations of Kurucz. An analysis of solar photospheric spectra, using the Kurucz branching-ratios renormalized by the new lifetime results, yields a solar photospheric abundance of chromium equal to A(Cr) = 5.74 +/- 0.06 on the usual logarithmic scale.

引用

页码：470 / 474

页数：5

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