Self broadening of hydrogen lines: initial results

Details Self broadening of hydrogen lines: initial results Self broadening of hydrogen lines: initial results

Mar 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000a%26a...355l...5b&link_type=abstract

Astronomy and Astrophysics, v.355, p.L5-L8 (2000)

Astronomy and Astrophysics

Astrophysics

31

Atomic Processes, Line: Profiles

Scientific paper

For the first time broadening by both resonance and dispersive-inductive interactions with H-atoms are included in the formation of Balmer lines in cool stars, without the use of a multipole expansion. Comparison of synthetic profiles with observed profiles for the Sun and two late F dwarfs shows that this improvement in broadening theory accounts for some of the problems found in previous work. It is anticipated that planned future developments in the theory of self broadening will lead to further improve ments in the modelling of cool star atmospheres.

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