Journal Article

Stark parameter regularities of neutral helium lines within different spectral series

Ivan P. Dojčinović, Irinel Tapalaga and Jagoš Purić

in Monthly Notices of the Royal Astronomical Society

Published on behalf of The Royal Astronomical Society

Volume 419, issue 1, pages 904-912
Published in print January 2012 | ISSN: 0035-8711
Published online December 2011 | e-ISSN: 1365-2966 | DOI: http://dx.doi.org/10.1111/j.1365-2966.2011.19772.x
Stark parameter regularities of neutral helium lines within different spectral series

More Like This

Show all results sharing this subject:

  • Astronomy and Astrophysics

GO

Show Summary Details

Preview

Stark width experimental and theoretical data of neutral helium spectral lines have been used to demonstrate their dependence on the upper-level ionization potential within different spectral series. The emphasis is on the term describing structure influence on the studied Stark-width dependences. After establishing these dependences, predictions were made for electron, proton and ionized helium impact contributions to the Stark widths of neutral helium spectral lines that have not been measured experimentally or calculated theoretically until now (transitions from high levels of He i). The accuracy of the data obtained is comparable with the accuracies of the experimental and theoretical values used in establishing the dependences.

Keywords: atomic data; line: profiles; opacity; plasmas; radiative transfer

Journal Article.  3933 words.  Illustrated.

Subjects: Astronomy and Astrophysics

Full text: subscription required

How to subscribe Recommend to my Librarian

Users without a subscription are not able to see the full content. Please, subscribe or login to access all content.