Henrik Hartman
Researcher (Leave of Absence)
Experimental transition probabilities for 4p - 4d spectral lines in V II
Author
Summary, in English
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.
Department/s
- Lund Observatory - Has been reorganised
- Atomic Physics
Publishing year
2019-02-12
Language
English
Publication/Series
Astronomy and Astrophysics
Volume
622
Document type
Journal article
Publisher
EDP Sciences
Topic
- Astronomy, Astrophysics and Cosmology
- Atom and Molecular Physics and Optics
Keywords
- Atomic data
- Line: identification
- Methods: laboratory: atomic
- Techniques: spectroscopic
Status
Published
ISBN/ISSN/Other
- ISSN: 0004-6361