Abstract
view Abstract Citations (30) References (17) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS He I lambda 4471 profiles in B stars: calculation with an improved line-broadening theory. Mihalas, D. ; Barnard, A. J. ; Cooper, J. ; Smith, E. W. Abstract Theoretical profiles for the He I A4471 line in B-star spectra have been computed using an improved broadening theory of Barnard, Cooper, and Smith, together with level populations determined by a self-consistent solution by Auer and Mihalas of the coupled transfer and statistical-equilibrium equations. The broadening theory has been constructed to provide a more accurate description of the intensity and width of the forbidden (2p 3P0-4f 3F ) transition as measured in laboratory experiments. The results presented in this paper show that this revision of the broadening theory leads to computed stellar profiles which are in much better agreement with observed profiles than any previously obtained. Subject headings: early-type stars - line profiles Publication: The Astrophysical Journal Pub Date: June 1974 DOI: 10.1086/152878 Bibcode: 1974ApJ...190..315M full text sources ADS | data products SIMBAD (4)
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