Premium
Rocket observation of the NII 2143A dayglow
Author(s) -
Barth Charles A.,
Steele Robert E.
Publication year - 1982
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/gl009i005p00559
Subject(s) - airglow , photoionization , zenith , rocket (weapon) , solar zenith angle , thermosphere , extreme ultraviolet , aeronomy , atmospheric sciences , atomic physics , spectrometer , nitrogen , ultraviolet , radiation , physics , altitude (triangle) , astrobiology , environmental science , ionosphere , astronomy , ionization , ion , optics , laser , engineering , quantum mechanics , aerospace engineering , geometry , mathematics
The NII 2143A doublet has been observed in the earth's dayglow with a rocket spectrometer at an altitude of 200 km. The slant column emission rate of this airglow is 333±67 Rayleighs at a zenith angle of 87.6°. The likely excitation mechanisms are photoionization of molecular nitrogen by solar extreme ultraviolet radiation and photoelectron impact excitation of molecular nitrogen.