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

Open Astronomy

卷:20

Peach G.¹ 

[1] Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, United Kingdom of Great Britain and Northern Ireland;

关键词: atomic processes;    line;    profiles;    sun;    photosphere;    stars;    white dwarfs;    brown dwarfs;   

DOI  :  10.1515/astro-2017-0330

来源: DOAJ

【 摘 要 】

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.

【 授权许可】

Unknown