The Self-Absorption Spectrum of the Triplet System of HE I

Details The Self-Absorption Spectrum of the Triplet System of HE I The Self-Absorption Spectrum of the Triplet System of HE I

Nov 1967

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1967bott....4..210b&link_type=abstract

Boletín de los Observatorios de Tonantzintla y Tacubaya Vol. 4, pp. 210-214 (1967) (http://www.astroscu.unam.mx/bott/)

Astronomy and Astrophysics

Astronomy

1

Line Formation, Planetary Nebulae: General, Hii Regions

Scientific paper

The relative line intensities for the triplet system in He I, have been re-computed for various nebular optical depths at λ3888. The profile of the line has been considered due to its importance. The electron collisions have not been taken into account since a low density nebula has been assumed. A direct comparison with observational results supports the idea of a depopulating mechanism for the 2^3S level, such as the Ly-α ionization radiation. A three dimensional spherical symmetric model has been used.

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