Lifetimes of the 5d^96p levels in Au ii

Experimental and theoretical transition probabilities in singly ionized gold

“…For 76 660 cm −1 , the HFR value, in good agreement with the MCDF value, confirmed the laser‐induced fluorescence measurements of Zhang et al (2002) but not the beam–foil measurement of Beideck et al (1993). The lifetimes calculated by Bogdanovich & Martinson (2000) and, to a lesser extent, by Beideck et al (1993) (HFR approach), were found systematically to be too low (lower than all the other results), the discrepancies being attributed to the rather simple model adopted by these authors that did not take the CPOL effects into account.…”

“…The Au ii HFR lifetime values reported by Fivet et al (2006) for the 5d 9 6p configuration were found to agree well with experiment (Beideck et al 1993; Zhang et al 2002), the only exception being the level at 85 708 cm −1 . For 76 660 cm −1 , the HFR value, in good agreement with the MCDF value, confirmed the laser‐induced fluorescence measurements of Zhang et al (2002) but not the beam–foil measurement of Beideck et al (1993).…”

“…Transition probabilities of two‐electron 5d 8 (n+1)s 2 –5d 9 (n+1)p transitions in Au ii spectrum have been evaluated in a Hartree–Fock approximation (length and velocity forms of the transition operator) by Blagoev et al (1990). The radiative lifetimes of 11 excited states belonging to the 5d 9 6p electronic configuration of Au ii have been measured by Beideck et al (1993) with the beam–foil spectroscopy method. Theoretical lifetimes have been calculated by the same authors using the Cowan's codes (Cowan 1981).…”

Experimental and theoretical transition probabilities for lines arising from the 6p configurations of Au II

“…In the particular case of singly ionized gold, accurate experimental atomic constants are needed because the analysis of stellar data for this star yields an overabundance of gold (compared with the solar value) by approximately four orders of magnitude, which is comparable with the abundance pattern found in mercury or platinum [16]. This phenomenon has been the object of several works.…”

“…There are also some published results of radiative lifetimes: Beideck et al [16] (relativistic Hartree-Fock and beam-foil excitation methods), Blagoev et al [24] (Hartree-Fock and delayed coincidence methods), Zhiguo et al [25] (multi-configuration Dirac-Fock calculations and the laser-induced fluorescence technique) and Fivet et al [26] (relativistic Hartree-Fock method).…”