Stark-width regularities of neutral lithium lines within different spectral series

Dojčinović, I. P.; Tapalaga, Irinel; Purić, J.

doi:10.1093/mnras/sts509

Cited by 6 publications

(2 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Influence of electron density and temperature on Stark broadening of spectral lines, within spectral series of potassium isoelectronic sequence, have been studied before Equation (1) has been applied in regularity analyzing procedure. Regularity approach used in present paper has been successfully applied previous articles of our group [8][9][10][11][12][13][14][15], where other emitters were analyzed.…”

Section: Theoretical Backgroundmentioning

confidence: 99%

Stark Widths Regularities Within: ns-np, np-ns, np-nd, nd-np and nd-nf Spectral Series of Potassium Isoelectronic Sequence

Trklja

Dojčinović

Tapalaga

et al. 2019

Atoms

View full text Add to dashboard Cite

Results presented in this paper show a regular behaviour of Stark widths within the studied spectral series of potassium isoelectronic sequence. These regularities have been found and verified on the basis of the existing theoretical and experimental data being normalized for the same plasma conditions (chosen electron density and temperature). Using the available set of data the corresponding formulas expressing the Stark widths of the lines originated from the spectral series studied here as a function of the upper-level ionization potential and the rest core charge of the emitter seeing by the electron undergoing transition, are obtained here. Well established and verified dependence is used to calculate Stark width data needed but not available so far. For the purposes of the operation with a large number of data, algorithms for the analysis of Stark width dependence on temperature and electron density and for the investigation of the assumed correlation between Stark width and ionization potential of the upper level of analyzed transition, have been made. Developed algorithms enable fast data processing.

show abstract

Section: Theoretical Backgroundmentioning

confidence: 99%

Stark Widths Regularities Within: ns-np, np-ns, np-nd, nd-np and nd-nf Spectral Series of Potassium Isoelectronic Sequence

Trklja

Dojčinović

Tapalaga

et al. 2019

Atoms

View full text Add to dashboard Cite

show abstract

“…A semi-empirical approach, that uses Hartree-Fock relativistic wave functions and includes core polarization effects, has been applied to 237 Mg III (Colón et al 2013) Regularities and systematic trends of Stark broadening parameters within various spectral series have been investigated for spectral lines of helium (Dojčinović et al 2012), lithium (Dojčinović et al 2013b), beryllium (Dojčinović et al 2011), calcium Tapalaga et al 2012, potassium (Jevtić et al 2012), and within homologous spectral series of alkaline earth metals (Dojčinović et al 2013a). The systematic trends obtained and data on regular behaviour within spectral series, can be of interest for the spectroscopic diagnostic of astrophysical plasmas, since this enables the estimation and prediction of missing Stark broadening parameters.…”

Section: Isolated Linesmentioning

confidence: 99%

Division B Commission 14 Working Group: Collision Processes

Peach¹,

Dimitrijević²,

Barklem³

2015

Proc. IAU

View full text Add to dashboard Cite

Since our last report (Peach & Dimitrijević 2012), a large number of new publications on the results of research in atomic and molecular collision processes and spectral line broadening have been published. Due to the limited space available, we have only included work of importance for astrophysics. Additional relevant papers, not included in this report, can be found in the databases at the web addresses provided in Section 6. Elastic and inelastic collisions between electrons, atoms, ions, and molecules are included, as well as charge transfer in collisions between heavy particles which can be very important.

show abstract