Broadening of Spectral Lines by Collisions with H-atoms

Details Broadening of Spectral Lines by Collisions with H-atoms Broadening of Spectral Lines by Collisions with H-atoms

Oct 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003csss...12.1097o&link_type=abstract

The Future of Cool-Star Astrophysics: 12th Cambridge Workshop on Cool Stars, Stellar Systems, and the Sun (2001 July 30 - August

Astronomy and Astrophysics

Astrophysics

1

Line Broadening

Scientific paper

Pressure broadening of metallic lines in cool stars is dominated by collisions with hydrogen atoms. A universal theory for broadening of neutral metallic lines by this mechanism developed by Anstee, Barklem, and O'Mara is briefly reviewed. Several examples of successful application of the data are presented and future applications discussed. Line broadening data from this theory for a large sample of lines can be obtained by accessing the Vienna Atomic Line Database (htmladdnormallink{www.astro.univie.ac.at/simvald}{www.astro.univie.ac.at/ vald}) or for individual lines by using software available at htmladdnormallink{www.astro.se/simbarklem}{www.astro.uu.se/ barklem}.

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