Accession Number : AD0448298

Title :   EXCITATION OF CHROMOSPHERIC HE I,

Corporate Author : HIGH ALTITUDE OBSERVATORY BOULDER CO

Personal Author(s) : Athay, R. Grant

Report Date : 22 OCT 1962

Pagination or Media Count : 10

Abstract : New calculations are carried out for b sub j for the singlet and triplet states of He I, using corrected transition rates from earlier analysis. The new results differ considerably from earlier calculations and lead to a new chromospheric model, whose major changes are in the geometry of the helium regions. (Author)

Descriptors :   *SOLAR ATMOSPHERE, HELIUM, EXCITATION, LINE SPECTRA, HYPERFINE STRUCTURE.

Distribution Statement : APPROVED FOR PUBLIC RELEASE