Results 21 to 30 of about 5,604 (251)

Stark broadening parameter tables for Na X [PDF]

open access: yesSerbian Astronomical Journal, 1998
Using a semiclassical approach, we have calculated electron−, proton−, and He III−impact line widths and shifts for 57 Na X multiplets as a function of temperature (200 000 K - 5 000 000 K) and perturber density (1017cm−3 - 1024cm−3.
Dimitrijević M.S., Sahal−Bréchot S.
doaj   +1 more source

Effect of the Ions on the Electron Collision Operator through Electronic Trajectory Modification

open access: yesAtoms, 2019
We investigate the ion effect on the broadening of the spectral line profile by the free electrons collisions with the emitters in plasmas. We only considered the weak collisions’ contribution.
Yasmina Ben Nana   +4 more
doaj   +1 more source

Stark Broadening of Neutral Boron Lines

open access: yesAtoms, 2019
Stark broadening parameters, width and shift, of lines within B I 2s22p−2s2ns spectral series have been calculated. Semi-classical theory in impact approximation has been applied. Temperature dependence of Stark parameters has been studied.
Magdalena Christova   +2 more
doaj   +1 more source

Review of Recent Advances in the Analytical Theory of Stark Broadening of Hydrogenic Spectral Lines in Plasmas: Applications to Laboratory Discharges and Astrophysical Objects

open access: yesAtoms, 2018
There is presented an overview of the latest advances in the analytical theory of Stark broadening of hydrogenic spectral lines in various types of laboratory and astrophysical plasmas.
Eugene Oks
doaj   +1 more source

Line Shape Modeling for the Diagnostic of the Electron Density in a Corona Discharge

open access: yesAtoms, 2017
We present an analysis of spectra observed in a corona discharge designed for the study of dielectrics in electrical engineering. The medium is a gas of helium and the discharge was performed at the vicinity of a tip electrode under high voltage.
Joël Rosato   +3 more
doaj   +1 more source

Stark broadening parameter tables for In II [PDF]

open access: yesSerbian Astronomical Journal, 2000
Electron-, proton-, and ionized helium-impact broadening parameter tables for In II spectral lines, are presented as a function of the temperature and the perturber density. Calculations have been performed within the semiclassical perturbation approach.
Dimitrijević M.S., Sahal-Brechot S.
doaj   +1 more source

From the Vector to Scalar Perturbations Addition in the Stark Broadening Theory of Spectral Lines

open access: yesUniverse, 2021
The effect of plasma Coulomb microfied dynamics on spectral line shapes is under consideration. The analytical solution of the problem is unachievable with famous Chandrasekhar–Von-Neumann results up to the present time.
Valery Astapenko   +2 more
doaj   +1 more source

Stark Widths of Ar II Spectral Lines in the Atmospheres of Subdwarf B Stars

open access: yesAtoms, 2017
Stark broadening parameters are of interest for many problems in astrophysics and laboratory plasmas investigation. Ar II spectral lines are observed in many kinds of stellar atmospheres such as the atmospheres of B-Type stars and subdwarf B stars.
Rafik Hamdi   +3 more
doaj   +1 more source

Stark broadening of N II spectral lines [PDF]

open access: yesSerbian Astronomical Journal
The Stark broadening parameters, widths, and shifts, for spectral lines within the 45 N II multiplets, were calculated for collisions with electrons, protons and helium ions, by using the semiclassical perturbation method. The obtained data were
Dimitrijević Milan S.   +2 more
doaj   +1 more source

Stark broadening parameter tables for Kr II lines [PDF]

open access: yesSerbian Astronomical Journal, 2000
In order to provide the Stark broadening data for ion lines from complex spectra, here we present calculated Stark widths and shifts for 37 Kr II lines. The calculations were performed by using the modified semiempirical approach.
Popović L.Č., Dimitrijević M.S.
doaj   +1 more source

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