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Experimental transition probabilities for 4p - 4d spectral lines in V II

Nilsson, H. LU ; Andersson, J. ; Engström, L. LU ; Lundberg, H. LU and Hartman, H. LU orcid (2019) In Astronomy and Astrophysics 622.
Abstract


Aims. We aim to measure lifetimes of levels belonging to the 3d
3
(
4
F)4d subconfiguration in Va II, and derive absolute transition probabilities by combining the lifetimes with experimental branching fractions. Methods. The lifetimes were measured using time-resolved laser-induced fluorescence in a two-photon excitation scheme. The branching fractions were measured in intensity calibrated spectra from a hollow... (More)


Aims. We aim to measure lifetimes of levels belonging to the 3d
3
(
4
F)4d subconfiguration in Va II, and derive absolute transition probabilities by combining the lifetimes with experimental branching fractions. Methods. The lifetimes were measured using time-resolved laser-induced fluorescence in a two-photon excitation scheme. The branching fractions were measured in intensity calibrated spectra from a hollow cathode discharge lamp, recorded with a Fourier transform spectrometer. Results. We report lifetimes for 13 levels at an energy around 73 000 cm
-1
. Absolute transition probabilities of 78 lines are derived by combining the lifetimes and branching fractions. The experimental values are compared with theoretical data from the literature.

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author
; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Atomic data, Line: identification, Methods: laboratory: atomic, Techniques: spectroscopic
in
Astronomy and Astrophysics
volume
622
article number
201834795
publisher
EDP Sciences
external identifiers
  • scopus:85061742278
ISSN
0004-6361
DOI
10.1051/0004-6361/201834795
language
English
LU publication?
yes
id
ec478073-b811-4611-89e8-5f13c38fce72
date added to LUP
2019-02-26 08:00:06
date last changed
2024-04-15 23:49:51
@article{ec478073-b811-4611-89e8-5f13c38fce72,
  abstract     = {{<p><br>
                                                         Aims. We aim to measure lifetimes of levels belonging to the 3d                             <br>
                            <sup>3</sup><br>
                                                         (                             <br>
                            <sup>4</sup><br>
                                                         F)4d subconfiguration in Va II, and derive absolute transition probabilities by combining the lifetimes with experimental branching fractions. Methods. The lifetimes were measured using time-resolved laser-induced fluorescence in a two-photon excitation scheme. The branching fractions were measured in intensity calibrated spectra from a hollow cathode discharge lamp, recorded with a Fourier transform spectrometer. Results. We report lifetimes for 13 levels at an energy around 73 000 cm                             <br>
                            <sup>-1</sup><br>
                                                         . Absolute transition probabilities of 78 lines are derived by combining the lifetimes and branching fractions. The experimental values are compared with theoretical data from the literature.                         <br>
                        </p>}},
  author       = {{Nilsson, H. and Andersson, J. and Engström, L. and Lundberg, H. and Hartman, H.}},
  issn         = {{0004-6361}},
  keywords     = {{Atomic data; Line: identification; Methods: laboratory: atomic; Techniques: spectroscopic}},
  language     = {{eng}},
  month        = {{02}},
  publisher    = {{EDP Sciences}},
  series       = {{Astronomy and Astrophysics}},
  title        = {{Experimental transition probabilities for 4p - 4d spectral lines in V II}},
  url          = {{http://dx.doi.org/10.1051/0004-6361/201834795}},
  doi          = {{10.1051/0004-6361/201834795}},
  volume       = {{622}},
  year         = {{2019}},
}