The FERRUM Project: Experimental oscillator strengths of the UV 8 multiplet and other UV transitions from the y6P levels of Fe II
(2002) In Astronomy & Astrophysics 396(2). p.715-722- Abstract
- We report on experimental branching fractions (BFs) for 19 transitions from the three 3d 5( 6S)4s4p( 3P) y6P levels in Fe II, measured in Fourier transform spectra of a Penning discharge lamp and a hollow cathode lamp. The transition wavelengths span the interval between 1600 and 2850 Å. Absolute oscillator strengths ( f-values) have been derived by combining the BFs with experimental radiative lifetimes recently reported in the literature. Theoretical f-values have been calculated using configuration interaction wavefunctions. The new experimental and theoretical f-values are compared with data available in the literature and in databases. The strongest lines measured belong to the UV 8 multiplet of Fe II, which has one ground state... (More)
- We report on experimental branching fractions (BFs) for 19 transitions from the three 3d 5( 6S)4s4p( 3P) y6P levels in Fe II, measured in Fourier transform spectra of a Penning discharge lamp and a hollow cathode lamp. The transition wavelengths span the interval between 1600 and 2850 Å. Absolute oscillator strengths ( f-values) have been derived by combining the BFs with experimental radiative lifetimes recently reported in the literature. Theoretical f-values have been calculated using configuration interaction wavefunctions. The new experimental and theoretical f-values are compared with data available in the literature and in databases. The strongest lines measured belong to the UV 8 multiplet of Fe II, which has one ground state transition appearing as a prominent feature at 1608 Å in interstellar spectra. The line is accompanied by a satellite at 1611 Å due to a level mixing, which is discussed in the paper. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/118562
- author
- Pickering, J. C. ; Donnelly, M. P. ; Nilsson, Hampus LU ; Hibbert, A. and Johansson, Sveneric LU
- organization
- publishing date
- 2002
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- atomic data -- line: identification -- techniques: spectroscopic -- stars: abundances -- ISM: abundances
- in
- Astronomy & Astrophysics
- volume
- 396
- issue
- 2
- pages
- 715 - 722
- publisher
- EDP Sciences
- external identifiers
-
- wos:000179574300037
- scopus:0036902025
- ISSN
- 0004-6361
- DOI
- 10.1051/0004-6361:20021388
- language
- English
- LU publication?
- yes
- id
- 0941f543-a37c-47c8-91b3-7b9343b750f5 (old id 118562)
- date added to LUP
- 2016-04-01 16:28:11
- date last changed
- 2024-01-11 08:38:22
@article{0941f543-a37c-47c8-91b3-7b9343b750f5, abstract = {{We report on experimental branching fractions (BFs) for 19 transitions from the three 3d 5( 6S)4s4p( 3P) y6P levels in Fe II, measured in Fourier transform spectra of a Penning discharge lamp and a hollow cathode lamp. The transition wavelengths span the interval between 1600 and 2850 Å. Absolute oscillator strengths ( f-values) have been derived by combining the BFs with experimental radiative lifetimes recently reported in the literature. Theoretical f-values have been calculated using configuration interaction wavefunctions. The new experimental and theoretical f-values are compared with data available in the literature and in databases. The strongest lines measured belong to the UV 8 multiplet of Fe II, which has one ground state transition appearing as a prominent feature at 1608 Å in interstellar spectra. The line is accompanied by a satellite at 1611 Å due to a level mixing, which is discussed in the paper.}}, author = {{Pickering, J. C. and Donnelly, M. P. and Nilsson, Hampus and Hibbert, A. and Johansson, Sveneric}}, issn = {{0004-6361}}, keywords = {{atomic data -- line: identification -- techniques: spectroscopic -- stars: abundances -- ISM: abundances}}, language = {{eng}}, number = {{2}}, pages = {{715--722}}, publisher = {{EDP Sciences}}, series = {{Astronomy & Astrophysics}}, title = {{The FERRUM Project: Experimental oscillator strengths of the UV 8 multiplet and other UV transitions from the y6P levels of Fe II}}, url = {{https://lup.lub.lu.se/search/files/4682476/623888.pdf}}, doi = {{10.1051/0004-6361:20021388}}, volume = {{396}}, year = {{2002}}, }