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Radiative lifetimes for the 4p excited states of phosphorus and the oscillator strengths of solar lines

Berzinsh, U; Svanberg, Sune LU and Biemont, E (1997) In Astronomy & Astrophysics 326(1). p.412-416
Abstract
Radiative lifetimes for the levels of the 3s(2)3p(2)4p configuration in neutral phosphorus have been determined experimentally for the first time and also theoretically. Experiments were performed by using two-photon UV laser excitation and subsequent fluorescence detection in a laser-produced plasma. In relativistic Hartree-Fock calculations, the Cowan code extended to 42 configurations was used. Finally, the lifetimes for all the 13 excited states in the 4p configuration were calculated and for 6 of them the values were measured experimentally. Theoretical branching ratios were combined with experimental lifetimes, to deduce oscillator strengths and these were used for the evaluation of the phosphorus abundance in the sun. A value of... (More)
Radiative lifetimes for the levels of the 3s(2)3p(2)4p configuration in neutral phosphorus have been determined experimentally for the first time and also theoretically. Experiments were performed by using two-photon UV laser excitation and subsequent fluorescence detection in a laser-produced plasma. In relativistic Hartree-Fock calculations, the Cowan code extended to 42 configurations was used. Finally, the lifetimes for all the 13 excited states in the 4p configuration were calculated and for 6 of them the values were measured experimentally. Theoretical branching ratios were combined with experimental lifetimes, to deduce oscillator strengths and these were used for the evaluation of the phosphorus abundance in the sun. A value of 5.49 (0.04) was obtained in the usual logarithmic scale. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Astronomy & Astrophysics
volume
326
issue
1
pages
412 - 416
publisher
EDP Sciences
external identifiers
  • Scopus:0038004826
ISSN
0004-6361
language
English
LU publication?
yes
id
aaba348d-7705-4926-9473-fc0843fdfbee (old id 2257589)
alternative location
http://adsabs.harvard.edu/abs/1997A&A...326..412B
date added to LUP
2012-02-23 21:58:21
date last changed
2016-10-13 04:28:33
@misc{aaba348d-7705-4926-9473-fc0843fdfbee,
  abstract     = {Radiative lifetimes for the levels of the 3s(2)3p(2)4p configuration in neutral phosphorus have been determined experimentally for the first time and also theoretically. Experiments were performed by using two-photon UV laser excitation and subsequent fluorescence detection in a laser-produced plasma. In relativistic Hartree-Fock calculations, the Cowan code extended to 42 configurations was used. Finally, the lifetimes for all the 13 excited states in the 4p configuration were calculated and for 6 of them the values were measured experimentally. Theoretical branching ratios were combined with experimental lifetimes, to deduce oscillator strengths and these were used for the evaluation of the phosphorus abundance in the sun. A value of 5.49 (0.04) was obtained in the usual logarithmic scale.},
  author       = {Berzinsh, U and Svanberg, Sune and Biemont, E},
  issn         = {0004-6361},
  language     = {eng},
  number       = {1},
  pages        = {412--416},
  publisher    = {ARRAY(0x852e530)},
  series       = {Astronomy & Astrophysics},
  title        = {Radiative lifetimes for the 4p excited states of phosphorus and the oscillator strengths of solar lines},
  volume       = {326},
  year         = {1997},
}