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

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

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 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.

Detaljer

Författare
Enheter & grupper
Externa organisationer
  • University of Gothenburg
  • Malmö University
Forskningsområden

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Astronomi, astrofysik och kosmologi
  • Atom- och molekylfysik och optik

Nyckelord

Originalspråkengelska
Artikelnummer201834795
TidskriftAstronomy and Astrophysics
Volym622
StatusPublished - 2019 feb 12
PublikationskategoriForskning
Peer review utfördJa