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Wavelengths, energy levels and hyperfine structure constants in Ho II

Gurell, J.; Wahlgren, Glenn LU ; Nave, G. and Wyart, J-F (2009) In Physica Scripta 79(3).
Abstract
We recorded spectra of Ho II emitted by hollow-cathode lamps, using the ultraviolet Fourier transform spectrometer (FTS) at Lund Observatory and the 2-m FTS at the National Institute of Standards and Technology. The combined wavenumber coverage spans the interval from 8000 to 49 600 cm(-1) (12 500 to 2016 angstrom). We measured 303 lines in these spectra and used them to determine energies and hyperfine structure constants of 100 levels. Of these, 41 energy levels have not been reported previously and hyperfine structure constants have not been reported previously for 83 levels. Comparisons between the hyperfine structure constants and energy levels presented in this article and those previously determined from other studies are included... (More)
We recorded spectra of Ho II emitted by hollow-cathode lamps, using the ultraviolet Fourier transform spectrometer (FTS) at Lund Observatory and the 2-m FTS at the National Institute of Standards and Technology. The combined wavenumber coverage spans the interval from 8000 to 49 600 cm(-1) (12 500 to 2016 angstrom). We measured 303 lines in these spectra and used them to determine energies and hyperfine structure constants of 100 levels. Of these, 41 energy levels have not been reported previously and hyperfine structure constants have not been reported previously for 83 levels. Comparisons between the hyperfine structure constants and energy levels presented in this article and those previously determined from other studies are included and discrepancies are discussed. A theoretical study of the odd-parity levels leads to hyperfine structure parameters and to predictions for unknown excited levels of the ground-state configuration. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physica Scripta
volume
79
issue
3
publisher
Institute of Physics Publishing Ltd.
external identifiers
  • wos:000263891000013
  • scopus:66149109646
ISSN
0031-8949
DOI
10.1088/0031-8949/79/03/035306
language
English
LU publication?
yes
id
be24cc1d-a160-4035-947a-87c16e25a22b (old id 1404607)
date added to LUP
2009-06-15 09:45:31
date last changed
2017-01-01 05:13:10
@article{be24cc1d-a160-4035-947a-87c16e25a22b,
  abstract     = {We recorded spectra of Ho II emitted by hollow-cathode lamps, using the ultraviolet Fourier transform spectrometer (FTS) at Lund Observatory and the 2-m FTS at the National Institute of Standards and Technology. The combined wavenumber coverage spans the interval from 8000 to 49 600 cm(-1) (12 500 to 2016 angstrom). We measured 303 lines in these spectra and used them to determine energies and hyperfine structure constants of 100 levels. Of these, 41 energy levels have not been reported previously and hyperfine structure constants have not been reported previously for 83 levels. Comparisons between the hyperfine structure constants and energy levels presented in this article and those previously determined from other studies are included and discrepancies are discussed. A theoretical study of the odd-parity levels leads to hyperfine structure parameters and to predictions for unknown excited levels of the ground-state configuration.},
  author       = {Gurell, J. and Wahlgren, Glenn and Nave, G. and Wyart, J-F},
  issn         = {0031-8949},
  language     = {eng},
  number       = {3},
  publisher    = {Institute of Physics Publishing Ltd.},
  series       = {Physica Scripta},
  title        = {Wavelengths, energy levels and hyperfine structure constants in Ho II},
  url          = {http://dx.doi.org/10.1088/0031-8949/79/03/035306},
  volume       = {79},
  year         = {2009},
}