Open AccessExperimental and coupled‐channels investigation of the radiative properties of the N 2 c ′ 4 1 Σ u + − X 1 Σ g + band system
Author(s) -
Liu Xianming,
Shemansky Donald E.,
Malone Charles P.,
Johnson Paul V.,
Ajello Joseph M.,
Kanik Isik,
Heays Alan N.,
Lewis Brenton R.,
Gibson Stephen T.,
Stark Glenn
Publication year - 2008
Publication title -
journal of geophysical research: space physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.67
H-Index - 298
eISSN - 2156-2202
pISSN - 0148-0227
DOI - 10.1029/2007ja012787
Subject(s) - diabatic , atomic physics , physics , radiative transfer , spectroscopy , transition dipole moment , atomic electron transition , molecular electronic transition , molecule , spectral line , excited state , optics , quantum mechanics , adiabatic process
The emission properties of the N 2 c ′ 4 1 Σ u + − X 1 Σ g + band system have been investigated in a joint experimental and coupled‐channels theoretical study. Relative intensities of the c ′ 4 1 Σ u + (0) − X 1 Σ g + ( v i ) transitions, measured via electron‐impact‐induced emission spectroscopy, are combined with a coupled‐channel Schrödinger equation (CSE) model of the N 2 molecule, enabling determination of the diabatic electronic transition moment for the c ′ 4 1 Σ u + − X 1 Σ g + system as a function of internuclear distance. The CSE rotational transition probabilities are further verified by comparison with a high‐resolution experimental spectrum. Spontaneous transition probabilities of the c ′ 4 1 Σ u + − X 1 Σ g + band system, required for modeling atmospheric emission, can now be calculated reliably.