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Stark Width Regularities within Neutral Calcium Spectral Series

Published online by Cambridge University Press:  02 January 2013

I. Tapalaga ,
I. P. Dojčinović ,
M. K. Milosavljević  and
J. Purić
I. Tapalaga*
Affiliation:
University of Belgrade, Faculty of Physics, P. O. Box 44, 11000 Belgrade, Serbia
I. P. Dojčinović
Affiliation:
University of Belgrade, Faculty of Physics, P. O. Box 44, 11000 Belgrade, Serbia
M. K. Milosavljević
Affiliation:
University of Priština, Faculty of Technical Sciences, K. Miloša 20, 28220 K. Mitrovica, Serbia
J. Purić
Affiliation:
University of Belgrade, Faculty of Physics, P. O. Box 44, 11000 Belgrade, Serbia
*
CCorresponding author. Email: [email protected]
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Abstract

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Dependences of electron and proton impact Stark width on the upper level ionization potential within different series of the neutral calcium spectral lines have been evaluated and discussed. The similar dependences previously found for the electron impact contribution were also obtained for the proton impact contribution to the Stark broadening. The emphasis is on the term structure influence on the studied Stark width dependences. The influence of the lower transition level and transition term is higher at low temperatures. After establishing these dependences, predictions were made for Stark widths of neutral calcium spectral lines not measured experimentally or calculated theoretically until now.

Keywords

atomic dataline: profilesopacityplasmasradiative transfer
Type
Research Article
Information
Publications of the Astronomical Society of Australia , Volume 29 , Issue 1 , 2012 , pp. 20 - 28
Copyright
Copyright © Astronomical Society of Australia 2012

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