Excitation of Infrared Auroral Emissions in Collisions of H(+) and H with N2.
Abstract
Cross sections for emission of the (N2(+)(A doublet Pi(u) - X doublet Sigma (g)(+)) Meinel (2,0) and the (N2(B triplet Pi(g) - A triplet Sigma (u)(+)) first positive (1P) (3,1) bands in 0.5 to 25 keV H(+) and H impact on N2 are reported. It is shown that, in a hydrogen aurora, H(+) and H impact make comparable contributions to the Meinel band intensity, but that neutral hydrogen impact is the predominant source of 1P emission. The vibrational distribution of N2(+) formed in 25 keV H(+) and H impact with v' = 2-5 is shown to be in good agreement with the prediction of a simple, Franck-Condon model. (Modified author abstract)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 05, 1974
- Accession Number
- AD0783211
Entities
People
- John H. Birely
- Peter A. Johnson
Organizations
- The Aerospace Corporation