NASA NTRS · 19720051980
On the He/plus/ triplet line intensities.
Abstract
Check of the adequacy of theoretical calculations of helium-triplet line strengths, including collisional enhancement, by comparing theoretical prediction with astronomical observations. It is shown that the observations of Peimbert and Torres-Peimbert (1971) and of Peimbert and Costero (1969) fit the theoretical predictions rather well, placing planetary nebulae and H II regions in separate density and temperature ranges. It appears that the theory of helium-triplet line strengths agrees with present observations.
Keep this discovery
Explore connections, maps & timelines
Daltabuit, E., Cox, D. P.. 1972-05-01. On the He/plus/ triplet line intensities.. https://ntrs.nasa.gov/citations/19720051980
Cite the original work for its findings. Save a collection to share your selection of sources.