The contribution function for the depth of formation of lines in a stellar atmosphere

Details The contribution function for the depth of formation of lines in a stellar atmosphere The contribution function for the depth of formation of lines in a stellar atmosphere

Oct 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991a%26a...250..445a&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 250, no. 2, Oct. 1991, p. 445-450.

Astronomy and Astrophysics

Astrophysics

33

Continuous Radiation, Line Spectra, Stellar Atmospheres, Stellar Spectra, Absorption Spectra, Emission Spectra

Scientific paper

A function describing the contribution of the various layers to the formation of spectral lines in a stellar atmosphere is derived. The function is valid for absorption lines as well as for emission lines, and is based on the separation of the line and the continuum emergent radiation. In this respect, this function differs from the conventional contribution functions, which are based on the total radiation or on the line depression. It is shown that it does not appear possible to find a unique function using the concept of line depression, in contrast to the function developed in this paper.

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