Intensity variation of atomic oxygen red line in the day airglow with solar activity |
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Authors: | Shashi K Gupta |
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Institution: | (1) J. K. Institute of Applied Physics, University of Allahabad, India |
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Abstract: | Rates of production of O(1
D) atoms in the upper atmosphere by photodissociation of O2, dissociative recombination of O2
+, NO+ and electron impact excitation of O(3
P) have been calculated for low, medium and high levels of solar activity. Variations with solar activity, of neutral and ionic composition, electron and neutral temperatures of the upper atmosphere and solar extreme ultraviolet fluxes incident on it have been taken into consideration.Emission rates ofOi red line (6300Å) have been computed taking into account the deactivation both by molecular oxygen and nitrogen. It has been shown that the integrated intensity from low to high activity period varies by approximately an order of magnitude in agreement with the results of experimental observations. |
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