ABSORPTION LINE SERIES AND AUTOIONIZATION RESONANCE STRUCTURE ANALYSIS IN THE ULTRAVIOLET SPECTRUM OF SR I,
Abstract
The absorption spectrum of strontium vapor in the quartz ultraviolet and Schumann region was obtained at good dispersion, leading to extension of the singlet principal series to n=33, and discovery of ninety-four lines due to double-electron transitions, most of which are classifiable within six series converging on the Sr II (2)D metastable term. Pronounced autoionization resonance effects occur in the Schumann region. A photoelectric spectrometer was used to measure relative absorption cross-sections in the Sr I spectrum, over the region comprising about 22 of the autoionization resonances. The results are unfolded by a computer program into Fano-type or dispersion profiles, and values of 'line-profile-indices' and autoionization damping constants are derived. One additional resonance, not recognizable from the photographic spectrum, is reported. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1967
- Accession Number
- AD0661354
Entities
People
- Edmond M. Reeves
- Gary L. Grasdalen
- Kenneth Codling
- William H. Parkinson
- William R. S. Garton
Organizations
- Harvard College Observatory