The electron-impact broadening effect in CP stars: the case of La II , La II i, EU II , and EU II i lines

Details The electron-impact broadening effect in CP stars: the case of La II , La II i, EU II , and EU II i lines The electron-impact broadening effect in CP stars: the case of La II , La II i, EU II , and EU II i lines

Oct 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999a%26a...350..719p&link_type=abstract

Astronomy and Astrophysics, v.350, p.719-724 (1999)

Astronomy and Astrophysics

Astrophysics

17

Atomic Data, Plasmas, Stars: Chemically Peculiar

Scientific paper

The electron-impact widths and shifts for six Eu ii lines and widths for three La ii , and six La ii i multiplets have been calculated by using the modified semiempirical method. Estimation for Stark widths of 664.506 nm (Eu ii ) and 666.634 nm (Eu ii i) lines are given as well. The influence of the electron-impact mechanism on line shapes and equivalent widths in hot star atmospheres has been considered.

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