The Effect of Electron Scattering on Curves of Growth

Details The Effect of Electron Scattering on Curves of Growth The Effect of Electron Scattering on Curves of Growth

Aug 1969

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1969ap%26ss...4..419r&link_type=abstract

Astrophysics and Space Science, Volume 4, Issue 4, pp.419-426

Astronomy and Astrophysics

Astrophysics

2

Scientific paper

A new exact solution of the macroscopic line transfer equation including electron scattering terms has been obtained for a Milne-Eddington Model atmosphere, and curves of growth based on this solution have been calculated. The results indicate that for lines formed by scattering there is a systematic change in the appropriate theoretical curve of growth as electron scattering becomes an increasingly important source of continuous opacity. In a case where electron scattering is the dominant opacity source, the abundance necessary to produce a given line strength may be decreased by a factor of 2 5 and the derived velocity parameter decreased by 20 30% due to the shifts in the theoretical curves.

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