Excitation of infrared auroral emissions in collisions of H/sup +/ and H with N/sub 2/. Interim report. [0. 5 to 25 keV: cross sections]
Cross sections for emission of the N/sub 2//sup +/ (A /sup 2/..pi../sub u/ -- X /sup 2/..sigma../sub g//sup +/) Meinel (2,0) and the (B /sup 3/..pi../sub g/ -- A /sup 3/..sigma../sub u//sup +/) first-positive (1P) (3,1) bands in 0.5 to 25 keV H/sup +/ and H impact on N/sub 2/ are reported. It is shown that, in a hydrogen aurora, H/sup +/ 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 N/sub 2//sup +/ A /sup 2/..pi../sub u/formed in 25-keV H/sup +/ and H impact with v' = 2 to 5 is shown to be in good agreement with the prediction of a simple, Franck--Condon model. (GRA)
- Research Organization:
- Aerospace Corp., El Segundo, CA (USA)
- OSTI ID:
- 7362309
- Report Number(s):
- AD/A-005672
- Country of Publication:
- United States
- Language:
- English
Similar Records
HIGH-RESOLUTION ELECTRON-IMPACT EMISSION SPECTRA AND VIBRATIONAL EMISSION CROSS SECTIONS FROM 330-1100 nm FOR N{sub 2}
Probabilities of d/sup 3/Pi/sup -//sub u/. -->. a/sup 3/. sigma. /sup +//sub g/ radiative transitions in the hydrogen molecule
Related Subjects
Ionospheric
& Magetospheric Phenomena
640304 -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
74 ATOMIC AND MOLECULAR PHYSICS
ATOM COLLISIONS
ATOM-MOLECULE COLLISIONS
AURORAE
CHARGED PARTICLES
COLLISIONS
CROSS SECTIONS
CRYOGENIC FLUIDS
ELEMENTS
EMISSION SPECTRA
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
EXCITATION
FLUIDS
HYDROGEN
HYDROGEN IONS
ION COLLISIONS
ION-MOLECULE COLLISIONS
IONS
MOLECULE COLLISIONS
NITROGEN
NONMETALS
SPECTRA