Theoretical and experimental lifetime and oscillator strength determination in singly ionized neodymium (Nd II)
(2003) In Monthly Notices of the Royal Astronomical Society 346(2). p.433-440- Abstract
- Radiative lifetime measurements were performed with time-resolved laser-induced fluorescence techniques for 24 levels of Nd II in the energy range 20 500- 32 500 cm(-1). For 17 levels, no previous experimental data exist. These results have allowed the testing of new theoretical calculations with the relativistic Hartree-Fock method taking configuration interactions and core-polarization effects into account, and a satisfying agreement has been found for this complex ion. A new set of calculated oscillator strengths, accurate within a few per cent for the strongest transitions, is presented for 107 lines of astrophysical interest appearing in the wavelength range 358.0-1100.0 nm. These results will be useful to evaluate abundance values of... (More)
- Radiative lifetime measurements were performed with time-resolved laser-induced fluorescence techniques for 24 levels of Nd II in the energy range 20 500- 32 500 cm(-1). For 17 levels, no previous experimental data exist. These results have allowed the testing of new theoretical calculations with the relativistic Hartree-Fock method taking configuration interactions and core-polarization effects into account, and a satisfying agreement has been found for this complex ion. A new set of calculated oscillator strengths, accurate within a few per cent for the strongest transitions, is presented for 107 lines of astrophysical interest appearing in the wavelength range 358.0-1100.0 nm. These results will be useful to evaluate abundance values of neodymium in chemically peculiar stars in relation with cosmochronology. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/294897
- author
- Xu, Huailiang LU ; Svanberg, Sune LU ; Cowan, RD ; Lefebvre, PH ; Quinet, P and Biemont, E
- organization
- publishing date
- 2003
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- stars : chemically peculiar, atomic data, atomic processes
- in
- Monthly Notices of the Royal Astronomical Society
- volume
- 346
- issue
- 2
- pages
- 433 - 440
- publisher
- Oxford University Press
- external identifiers
-
- wos:000186698700014
- scopus:0345016366
- ISSN
- 1365-2966
- DOI
- 10.1046/j.1365-2966.2003.07107.x
- language
- English
- LU publication?
- yes
- id
- 2fb3581f-be48-4e48-a6b3-a7d51cf5f1a1 (old id 294897)
- date added to LUP
- 2016-04-01 11:38:08
- date last changed
- 2022-01-26 07:54:23
@article{2fb3581f-be48-4e48-a6b3-a7d51cf5f1a1, abstract = {{Radiative lifetime measurements were performed with time-resolved laser-induced fluorescence techniques for 24 levels of Nd II in the energy range 20 500- 32 500 cm(-1). For 17 levels, no previous experimental data exist. These results have allowed the testing of new theoretical calculations with the relativistic Hartree-Fock method taking configuration interactions and core-polarization effects into account, and a satisfying agreement has been found for this complex ion. A new set of calculated oscillator strengths, accurate within a few per cent for the strongest transitions, is presented for 107 lines of astrophysical interest appearing in the wavelength range 358.0-1100.0 nm. These results will be useful to evaluate abundance values of neodymium in chemically peculiar stars in relation with cosmochronology.}}, author = {{Xu, Huailiang and Svanberg, Sune and Cowan, RD and Lefebvre, PH and Quinet, P and Biemont, E}}, issn = {{1365-2966}}, keywords = {{stars : chemically peculiar; atomic data; atomic processes}}, language = {{eng}}, number = {{2}}, pages = {{433--440}}, publisher = {{Oxford University Press}}, series = {{Monthly Notices of the Royal Astronomical Society}}, title = {{Theoretical and experimental lifetime and oscillator strength determination in singly ionized neodymium (Nd II)}}, url = {{https://lup.lub.lu.se/search/files/2571417/2371283.pdf}}, doi = {{10.1046/j.1365-2966.2003.07107.x}}, volume = {{346}}, year = {{2003}}, }