Other
Scientific paper
Sep 1978
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978apj...224.1079f&link_type=abstract
Astrophysical Journal, Part 1, vol. 224, Sept. 15, 1978, p. 1079-1084.
Other
29
Atomic Spectra, Electronic Spectra, Line Spectra, Spectral Line Width, Stark Effect, Stellar Spectra, Angular Momentum, Atomic Energy Levels, Bessel Functions, Electron Density (Concentration), Ionization Potentials, Quantum Numbers
Scientific paper
A simple formula for the prediction of Stark widths of neutral lines similar to the semiempirical method of Griem (1968) for ion lines is presented. This formula is a simplification of the quantum-mechanical classical path impact theory and can be used for complicated atoms for which detailed calculations are not readily available, provided that the effective position of the closest interacting level is known. The expression does not require the use of a computer. The formula has been applied to a limited number of neutral lines of interest, and the width obtained is compared with the much more complete calculations of Bennett and Griem (1971). The agreement generally is well within 50% of the published value for the lines investigated. Comparisons with other formulas are also made. In addition, a simple estimate for the ion-broadening parameter is given.
Cooper Joshua
Freudenstein S. A.
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