Trends in E2 and M1 transition rates between 3p${_{{\mathsf{3/2}}}}$ and 3p${_{\mathsf{{1/2}}}}$ levels in 3s${^{\mathsf{2}}}$ 3p${^k}$ systems

Abstract

Abstract. The analysis of forbidden lines, such as E2 and M1, in the atomic spectra emitted by certain ions is important for the study of the plasma in astrophysical objects and fusion devices. Transition rates between 3p 3/2 and 3p 1/2 levels in 3s 2 3p k ions that belong to the aluminium sequence have been calculated with the Relativistic Quantum Defect Orbital (RQDO) method. The present data are tested by comparison with other theoretical data available in the literature, and the regularity of the transition intensities along the isoelectronic sequence for both (E2 and M1) lines, as well as their competition, are also analysed.

Spontaneous radiative decay rates in Ga‐like ions

“…On the basis of the accuracy of the results obtained previously with the same method for other homologous sequences with 2p and 3p valence configurations [14,15], and in view of the smooth behaviour observed along these two sequences, the present set of results may also be expected to be accurate. Experimental transition probabilities or f -values would, however, be required to estimate the uncertainties in the data reported here.…”

“…The values for the transition rates via the electric quadrupole (E2) and magnetic dipole (M1) mechanisms are shown in Figures 2 and 3, respectively. The RQDO A-values plotted for B and Al-like ions have been taken from Charro et al [14,15].…”

“…In this context, we have reported transition probabilities corresponding to electric-quadrupole and magneticdipole transitions for a group of B-like ions (Z = 5 − 82) and Al-like ions (Z = 21 − 80) in previous papers [14,15]. The Relativistic Quantum Defect Orbital (RQDO) method was employed in the calculations.…”

Dirac–Fock calculations of forbidden transitions within the 3pkand 3dkground configurations of highly charged tungsten ions (W47 +–W61 +)

“…Feldman et al (1991Feldman et al ( , 2001 and Doron and Feldman (2001) performed a systematic study of densitysensitive magnetic dipole lines in Ti-like ions including W 53+ . Relativistic quantum defect orbital (RQDO) calculations of transition rates for electric quadrupole and magnetic dipole lines for ions along the potassium and aluminium isoelectronic sequences, including W 55+ and W 61+ , were carried out by Charro et al (2002Charro et al ( , 2003, respectively. Atomic structure and radiative properties of forbidden transitions in Yb-like, Aglike, Zn-like, Ca-like, Al-like, Mg-like, B-like and Be-like Ion Label jj designation (10 3 cm −1 ) (10 3 cm −1 ) and W 70+ , were computed with the relativistic many-body perturbation theory (RMBPT) by Safronova and Safronova (2010).…”

Energies and E1, M2 transition rates for Mo XXX

“…Lavin et al reported theoretical oscillator strengths for 3s 2 3p 2 P-3s 2 3d 2D, 3s 2 3p 2 P-3s 2 4s 2 S and 3s 2 4s 2 S-3s 2 4p 2 P using the quantum defect orbital method (QDO) and its relativistic counterpart (RQDO) [14]. Charro et al analysed the trends in E2 and M1 transition rates between 3p 3/2 and 3p 1/2 levels in 3s 2 3p k systems using RQDO method [15]. Safronova et al displayed a computation of relativistic many body calculations of electric-dipole properties for n=3 in Al-like ions [16].…”