Broadening of lines of Be II, Sr II and Ba II by collisions with hydrogen atoms and the solar abundance of strontium

Barklem, P. S. and O'Mara, B. J. (2000) Broadening of lines of Be II, Sr II and Ba II by collisions with hydrogen atoms and the solar abundance of strontium. Monthly Notices of the Royal Astronomical Society, 311 3: 535-540. doi:10.1046/j.1365-8711.2000.03090.x


Author Barklem, P. S.
O'Mara, B. J.
Title Broadening of lines of Be II, Sr II and Ba II by collisions with hydrogen atoms and the solar abundance of strontium
Formatted title
Broadening of lines of Be II, Sr II and Ba II by collisions with hydrogen atoms and the solar abundance of strontium
Journal name Monthly Notices of the Royal Astronomical Society
ISSN 0035-8711; 1365-2966; 1745-3933; 1365-8711
Publication date 2000-01
Sub-type Article (original research)
DOI 10.1046/j.1365-8711.2000.03090.x
Volume 311
Issue 3
Start page 535
End page 540
Total pages 6
Place of publication London, U.K
Publisher Blackwell Science
Collection year 2000
Language eng
Subject C1
240101 Astronomy and Astrophysics
780102 Physical sciences
Formatted abstract
In a previous paper by the present authors the theory of Anstee and O’Mara for the broadening of spectral lines of neutral atoms by collisions with hydrogen atoms was extended to singly ionized atoms. In this paper we apply the method to the resonance and triplet lines of ionized strontium, the infrared triplet of ionized barium, and the resonance lines of ionized beryllium. Analysis of five lines of ionized strontium, previously regarded as too strong for an abundance analysis, and two lines of neutral strontium results in a solar abundance of strontium of log(NSrNH) + 12 = 2.92 ± 0.05, which is entirely consistent with the meteoritic value.
Keyword Atomic data – line
Profiles – Sun
Abundances
Q-Index Code C1

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Physical Sciences Publications
 
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Created: Tue, 10 Jun 2008, 11:52:37 EST