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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 (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
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
2020-02-26 07:17:02
@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},
  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},
}