NASA NTRS ยท 19720004117
Radiofrequency recombination lines from the interstellar medium
Abstract
Observations of recombination lines form normal H II regions, extended H II regions, nonthermal sources, and the H I medium are discussed. Detection of recombination lines from elements other than hydrogen may provide a means of identifying fossil Stromgren spheres at high temperature.
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Dupree, A. K.. 1971-09-01. Radiofrequency recombination lines from the interstellar medium. https://ntrs.nasa.gov/citations/19720004117
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