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Radiative lifetimes, branching fractions and transition probabilities in Ge I - solar implications

Biemont, E; Lynga, C; Li, Z. S; Svanberg, Sune LU ; Garnir, H. P and Doidge, P. S (1999) In Monthly Notices of the Royal Astronomical Society 303(4). p.721-726
Abstract
New radiative lifetimes have been measured for the 5s (3)P(0,1,2)degrees and 5s (1)P(1)degrees levels of Ge I using a laser-produced plasma subject to selective laser excitation. A diffraction grating based emission spectrometer of moderately high resolution has been used to remeasure the branching ratios of the 4p-5s depopulating transitions. The oscillator strengths of astrophysical interest, which have been derived from these new data, are compared with theoretical values calculated within a pseudo-relativistic Hartree-Fock approach. The new set of f-values has been compared with the few results available in the literature, which are generally characterized by a large scatter and a low accuracy. The solar photospheric abundance of... (More)
New radiative lifetimes have been measured for the 5s (3)P(0,1,2)degrees and 5s (1)P(1)degrees levels of Ge I using a laser-produced plasma subject to selective laser excitation. A diffraction grating based emission spectrometer of moderately high resolution has been used to remeasure the branching ratios of the 4p-5s depopulating transitions. The oscillator strengths of astrophysical interest, which have been derived from these new data, are compared with theoretical values calculated within a pseudo-relativistic Hartree-Fock approach. The new set of f-values has been compared with the few results available in the literature, which are generally characterized by a large scatter and a low accuracy. The solar photospheric abundance of germanium deduced from the new atomic data of the present work is A(Ge) = 3.58 +/- 0.05, on the usual logarithmic scale, in agreement with the meteoritic value. (Less)
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organization
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type
Contribution to journal
publication status
published
subject
in
Monthly Notices of the Royal Astronomical Society
volume
303
issue
4
pages
721 - 726
publisher
Wiley-Blackwell
external identifiers
  • scopus:0040053952
ISSN
1365-2966
DOI
10.1046/j.1365-8711.1999.02230.x
language
English
LU publication?
yes
id
c81219dc-eff3-493e-9824-ee1388d44343 (old id 2257645)
date added to LUP
2012-02-23 22:00:29
date last changed
2017-04-09 04:28:20
@article{c81219dc-eff3-493e-9824-ee1388d44343,
  abstract     = {New radiative lifetimes have been measured for the 5s (3)P(0,1,2)degrees and 5s (1)P(1)degrees levels of Ge I using a laser-produced plasma subject to selective laser excitation. A diffraction grating based emission spectrometer of moderately high resolution has been used to remeasure the branching ratios of the 4p-5s depopulating transitions. The oscillator strengths of astrophysical interest, which have been derived from these new data, are compared with theoretical values calculated within a pseudo-relativistic Hartree-Fock approach. The new set of f-values has been compared with the few results available in the literature, which are generally characterized by a large scatter and a low accuracy. The solar photospheric abundance of germanium deduced from the new atomic data of the present work is A(Ge) = 3.58 +/- 0.05, on the usual logarithmic scale, in agreement with the meteoritic value.},
  author       = {Biemont, E and Lynga, C and Li, Z. S and Svanberg, Sune and Garnir, H. P and Doidge, P. S},
  issn         = {1365-2966},
  language     = {eng},
  number       = {4},
  pages        = {721--726},
  publisher    = {Wiley-Blackwell},
  series       = {Monthly Notices of the Royal Astronomical Society},
  title        = {Radiative lifetimes, branching fractions and transition probabilities in Ge I - solar implications},
  url          = {http://dx.doi.org/10.1046/j.1365-8711.1999.02230.x},
  volume       = {303},
  year         = {1999},
}