Recent Results for Widths of Lines Important in the Spectra of Cool Stars

The broadening of spectral lines by neutral perturbers is an important factor in the interpretation of the observed spectra of cool stars and is often included in the analysis by using a simple van der Waals formula. Detailed calculations are carried out for selected lines and are used to examine th...

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Bibliographic Details
Published inOpen astronomy Vol. 20; no. 4; pp. 516 - 522
Main Author Peach G.
Format Journal Article
LanguageEnglish
Published De Gruyter 01.01.2011
Subjects
atomic processes
brown dwarfs
line
photosphere
profiles
stars
sun
white dwarfs
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Summary:The broadening of spectral lines by neutral perturbers is an important factor in the interpretation of the observed spectra of cool stars and is often included in the analysis by using a simple van der Waals formula. Detailed calculations are carried out for selected lines and are used to examine the validity of this formula for a range of temperatures.
ISSN:2543-6376
DOI:10.1515/astro-2017-0330