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Experimental and coupled-channels investigation of the radiative properties of the N2 c′4 1Σu+ − X 1Σg+ band system
Planetary and Space Science Division, Space Environment Technologies, Pasadena, California, USA
Planetary and Space Science Division, Space Environment Technologies, Pasadena, California, USA
Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California, USA
Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California, USA
Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California, USA
Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California, USA
Research School of Physical Sciences and Engineering, The Australian National University, Canberra, Australian Capital Territory, Australia
Research School of Physical Sciences and Engineering, The Australian National University, Canberra, Australian Capital Territory, Australia
Research School of Physical Sciences and Engineering, The Australian National University, Canberra, Australian Capital Territory, Australia
Department of Physics, Wellesley College, Wellesley, Massachusetts, USA
The emission properties of the N2 c′4 1Σ u + − X 1Σ g + band system have been investigated in a joint experimental and coupled-channels theoretical study. Relative intensities of the c′4 1Σ u +(0) − X 1Σ g +(v i ) transitions, measured via electron-impact-induced emission spectroscopy, are combined with a coupled-channel Schrödinger equation (CSE) model of the N2 molecule, enabling determination of the diabatic electronic transition moment for the c′4 1Σ u + − X 1Σ 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 1Σ u + − X 1Σ g + band system, required for modeling atmospheric emission, can now be calculated reliably.
Received 31 August 2007; accepted 6 November 2007; published 14 February 2008.
Citation: (2008), Experimental and coupled-channels investigation of the radiative properties of the N2 c′4 1Σu+ − X 1Σg+ band system, J. Geophys. Res., 113, A02304, doi:10.1029/2007JA012787.
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