Journal Article

The broadening of strong lines of Ca<sup>+</sup>, Mg<sup>+</sup> and Ba<sup>+</sup> by collisions with neutral hydrogen atoms

P. S. Barklem and B. J. O'Mara

in Monthly Notices of the Royal Astronomical Society

Published on behalf of The Royal Astronomical Society

Volume 300, issue 3, pages 863-871
Published in print November 1998 | ISSN: 0035-8711
Published online November 1998 | e-ISSN: 1365-2966 | DOI: http://dx.doi.org/10.1111/j.1365-8711.1998.t01-1-01942.x
The broadening of strong lines of Ca+, Mg+ and Ba+ by collisions with neutral hydrogen atoms

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Abstract

The theory of Anstee & O'Mara is extended to the line broadening of transitions of singly ionized atoms by collisions with neutral hydrogen atoms. The theory is used to calculate broadening cross-sections for strong lines of singly ionized calcium, magnesium and barium. The broadening cross-sections calculated are compared with both theoretical and empirical results of other workers.

Keywords: atomic data; line: profiles; Sun: abundances

Journal Article.  0 words. 

Subjects: Astronomy and Astrophysics

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