Line broadening in the Ar III spectrum

Bukvić, S.; Žigman, V. J.; Srećković, A.; Djeniže, S.

doi:10.1016/j.jqsrt.2008.07.005

Cited by 5 publications

(48 citation statements)

References 25 publications

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“…Although interest in Stark width and shift of Ar iii lines exists, however, only few experimental works are devoted to the determination of these parameters (Platiša et al 1975; Dimitrijević & Konjević 1987; Konjević & Pittman 1987; Purić et al 1988; Kobilarov & Konjević 1990; Djeniže et al 1996; Bukvić et al 2008). All the above‐mentioned papers report Stark half‐width measurements and cover wavelength regions from 214 to 350 nm.…”

Section: Introductionmentioning

confidence: 99%

Stark broadening of ultraviolet Ar iii spectral lines

Djurović

Mar

Peláez

et al. 2011

Monthly Notices of the Royal Astronomical Society

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This paper presents the results of an experimental study of the Stark broadening and a shift of some double‐ionized argon spectral lines in a plasma of a low‐pressure‐pulsed arc. Electron densities of (3.5–9.0) × 1022 m−3 are determined by a two‐wavelength interferometry method and electron temperatures of 16 000–24 000 K are determined from the Boltzmann plot of 13 Ar ii spectral lines. The Stark parameter results obtained are analysed and compared with the available experimental results of other authors as well as with the calculated values obtained from modified semi‐empirical formulae. All investigated spectral lines belong to the ultraviolet spectral region. The data obtained can be of astrophysical interest.

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Section: Introductionmentioning

confidence: 99%

Stark broadening of ultraviolet Ar iii spectral lines

Djurović

Mar

Peláez

et al. 2011

Monthly Notices of the Royal Astronomical Society

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“…The lowest dispersion of the halfwidth results for Xe III may be partly due to the small number of available experimental results. The largest disagreement with calculated Stark halfwidths appears for the Milosavljević et al (2001) data for Ne III and for the Bukvić et al (2008) data for Ar III.…”

Section: Analysis Of Thementioning

confidence: 69%

“…3) are taken from Platiša et al (1975), Konjević & Pittman (1987), Purić et al (1988), Kobilarov & Konjević (1990), Djeniže et al (1996), Bukvić et al (2008) and Djurović et al (2011). Results for Kr III (Fig.…”

Section: Analysis Of the Stark Halfwidths For The (N − 1)d -Np And Nsmentioning

confidence: 99%

“…Owing to these similarities, a gradual increase of the spectral line halfwidths, i.e., the systematic trend should be expected in these cases. For the analysis of (n − 1)d − np and ns−np transitions, the following references are available: Platiša et al (1975), Konjević & Pittman (1987), Purić et al (1988), Kobilarov & Konjević (1990), Uzelac et al (1993), Djeniže et al (1996), Iriarte et al (1997), Romeo y Bidegain et al (1998), Ahmad et al (1998), Blagojević et al (2000), Milosavljević et al (2000Milosavljević et al ( , 2001, Seidel et al (2001), Peláez et al (2006), Bukvić et al (2008), Peláez et al (2009Peláez et al ( ),Ćirišan et al (2011 and Djurović et al (2011).…”

Section: Introductionmentioning

confidence: 99%

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Stark halfwidth trends along the homologous sequence of doubly ionized noble gases

Peláez

Djurović

Cirisan

et al. 2012

A&A

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Aims. The aim of this work is to analyze the behavior of experimentally determined Stark halfwidths for (n− 1)d− np and ns − np transitions along the homologous sequence of doubly ionized noble gases. Methods. We analyzed the Stark halfwidth trends including all available experimental data. Stark halfwidth results for the above mentioned transitions and corresponding multiplets were compared with the halfwidths calculated using the modified semiempirical formula (MSE) and the simplified modified semiempirical formula (SMSE). In case of Ne III the calculation made by semiclassicalperturbation formalism (SCPF) is also presented. Results. Stark halfwidths corresponding to (n − 1)d − np and ns − np transitions have been analyzed along the homologous sequence of doubly ionized noble gases. For all multiplets observed in this work, the analysis shows that the halfwidths of the spectral lines belonging to the same transition show a similar trend along the homologous sequence. Stark halfwidths of ns − np transitions have a clearly increasing trend. On the other hand, for (n − 1)d − np transitions, there are not enough data to make a similar conclusion. This type of trend analysis can be useful for Stark halfwidth predictions and hence for spectroscopic diagnostics of astrophysical plasmas.

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“…A semi-empirical approach, which uses a set of wave functions obtained from Hartree-Fock relativistic calculations and includes core polarization effects, has been applied to 58 lines of Pb IV (Alonso-Medina Broadening parameters have been obtained experimentally for the following numbers of lines: Bukvić et al 2011), 28 Cd III , Bukvić et al 2009b, 13 Si I, 15 Si II, 28 Si III and 9 Si IV (Bukvić et al 2009a), 29 (Bukvić et al 2008) (Peláez et al 2010b), 38 Xe II (Peláez et al 2009a, Peláez et al 2009b, 10 Xe III (Peláez et al 2009b), 5 Au I and 26 Au II (Djeniže 2009), 9 Sb III (Djeniže 2008), 15 Mn I and 10 Fe I (Zielinska et al 2010), 21 Fe II (Aragón et al 2011) and C I 833.5 nm (Bartecka et al 2011).…”

Section: Isolated Linesmentioning

confidence: 99%

Division Xii / Commission 14 / Working Group Collision Processes

Peach¹,

Dimitrijević²

2011

Proc. IAU

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Research in atomic and molecular collision processes and spectral line broadening has been very active since our last report, Peach, Dimitrijević & Stancil 2009. Given the large volume of the published literature and the limited space available, we have attempted to identify work most relevant to astrophysics. Since our report can not be comprehensive, additional publications can be found in the databases at the web addresses listed in the final section. Elastic and inelastic collisions among electrons, atoms, ions, and molecules are included and charge transfer can be very important in collisions between heavy particles.

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Line broadening in the Ar III spectrum

Cited by 5 publications

References 25 publications

Stark broadening of ultraviolet Ar iii spectral lines

Stark broadening of ultraviolet Ar iii spectral lines

Stark halfwidth trends along the homologous sequence of doubly ionized noble gases

Division Xii / Commission 14 / Working Group Collision Processes

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