New f-values in neutral lead obtained by time-resolved laser spectroscopy, and astrophysical applications
(2000) In Monthly Notices of the Royal Astronomical Society 312(1). p.116-122- Abstract
- Natural radiative lifetimes have been measured for three odd-parity levels of neutral lead using time-resolved UV laser-induced fluorescence from a laser-produced plasma. These new lifetimes, as well as additional recent values obtained by laser spectroscopy, combined with theoretical branching ratios deduced from a relativistic Hartree-Fock calculation taking core polarization effects into account, have allowed the deduction of a new set of accurate f-values of astrophysical interest. Using the new lifetime value for 6p7s (1/2, 1/2)(0)degrees, a refined value of the lead abundance in the solar photosphere is deduced: A(Pb) = 2.00 +/- 0.06 on the usual logarithmic scale, allowing the resolution of the long-standing discrepancy previously... (More)
- Natural radiative lifetimes have been measured for three odd-parity levels of neutral lead using time-resolved UV laser-induced fluorescence from a laser-produced plasma. These new lifetimes, as well as additional recent values obtained by laser spectroscopy, combined with theoretical branching ratios deduced from a relativistic Hartree-Fock calculation taking core polarization effects into account, have allowed the deduction of a new set of accurate f-values of astrophysical interest. Using the new lifetime value for 6p7s (1/2, 1/2)(0)degrees, a refined value of the lead abundance in the solar photosphere is deduced: A(Pb) = 2.00 +/- 0.06 on the usual logarithmic scale, allowing the resolution of the long-standing discrepancy previously observed between the solar photosphere and meteorites. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/2257625
- author
- Biemont, E ; Garnir, H. P ; Palmeri, P ; Li, Z. S and Svanberg, Sune LU
- organization
- publishing date
- 2000
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Monthly Notices of the Royal Astronomical Society
- volume
- 312
- issue
- 1
- pages
- 116 - 122
- publisher
- Oxford University Press
- external identifiers
-
- scopus:0001005387
- ISSN
- 1365-2966
- DOI
- 10.1046/j.1365-8711.2000.03094.x
- language
- English
- LU publication?
- yes
- id
- 797e4e7a-c2f3-4464-9a42-bea9c4642c92 (old id 2257625)
- date added to LUP
- 2016-04-04 07:06:05
- date last changed
- 2022-01-29 01:38:49
@article{797e4e7a-c2f3-4464-9a42-bea9c4642c92,
abstract = {{Natural radiative lifetimes have been measured for three odd-parity levels of neutral lead using time-resolved UV laser-induced fluorescence from a laser-produced plasma. These new lifetimes, as well as additional recent values obtained by laser spectroscopy, combined with theoretical branching ratios deduced from a relativistic Hartree-Fock calculation taking core polarization effects into account, have allowed the deduction of a new set of accurate f-values of astrophysical interest. Using the new lifetime value for 6p7s (1/2, 1/2)(0)degrees, a refined value of the lead abundance in the solar photosphere is deduced: A(Pb) = 2.00 +/- 0.06 on the usual logarithmic scale, allowing the resolution of the long-standing discrepancy previously observed between the solar photosphere and meteorites.}},
author = {{Biemont, E and Garnir, H. P and Palmeri, P and Li, Z. S and Svanberg, Sune}},
issn = {{1365-2966}},
language = {{eng}},
number = {{1}},
pages = {{116--122}},
publisher = {{Oxford University Press}},
series = {{Monthly Notices of the Royal Astronomical Society}},
title = {{New f-values in neutral lead obtained by time-resolved laser spectroscopy, and astrophysical applications}},
url = {{https://lup.lub.lu.se/search/files/5122499/2297078.pdf}},
doi = {{10.1046/j.1365-8711.2000.03094.x}},
volume = {{312}},
year = {{2000}},
}