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Atoms 2017, 5(4), 49; doi:10.3390/atoms5040049

Regularities and Systematic Trends on Zr IV Stark Widths

1
Astronomical Observatory, Volgina 7, Belgrade 11060, Serbia
2
LERMA (Laboratoire d’Etudes du Rayonnement et de la Matière en Astrophysique et Atmosphères), Observatoire de Paris, 5 Place Jules Janssen, 92195 Meudon CEDEX, France
Current address: Astronomical Observatory, Volgina 7, Belgrade 11060, Serbia.
These authors contributed equally to this work.
*
Author to whom correspondence should be addressed.
Received: 10 September 2017 / Revised: 14 October 2017 / Accepted: 23 November 2017 / Published: 1 December 2017
(This article belongs to the Special Issue Spectral Line Shapes in Astrophysics and Related Topics)
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Abstract

Regularities and systematic trends among the Stark widths of 18 Zr IV spectral lines obtained by modified semiempirical approach have been discussed. Also we compared those calculated Stark broadening parameters with estimates according to Cowley, Purić et al. and Purić and Šćepanović and checked the possibility to find some new estimates. It is demonstrated as well that the formula of Cowley (1971) overestimates Stark widths, obtained by using modified semiempirical method, with the increase of angular orbital momentum quantum number due to its neglection. It is also found that the results obtained by using formula for simple estimates of Purić et al. (1991) are in agreement with the modified semiempirical results within the estimated error bars of both methods, while the estimates using formula of Purić and Šćepanović (1999) are in strong disagreement which increases with the increase of angular orbital momentum quantum number. View Full-Text
Keywords: Stark broadening; line profiles; atomic data Stark broadening; line profiles; atomic data
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Majlinger, Z.; Dimitrijević, M.S.; Simić, Z. Regularities and Systematic Trends on Zr IV Stark Widths. Atoms 2017, 5, 49.

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