EUV (300-900 A) spectrum of polar cap and cusp emissions near local noon

Details EUV (300-900 A) spectrum of polar cap and cusp emissions near local noon EUV (300-900 A) spectrum of polar cap and cusp emissions near local noon

May 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985jgr....90.4421c&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 90, May 1, 1985, p. 4421-4426.

Physics

9

Auroral Spectroscopy, Emission Spectra, Extreme Ultraviolet Radiation, Polar Caps, Ultraviolet Spectroscopy, Military Spacecraft, Oxygen Spectra, Polar Cusps, Satellite Observation

Scientific paper

Emissions in the 300-to-900-Å wavelength range near the dayside oval were observed on April 5, 1979, over the south pole by EUV spectrometer on board the STP78-1 satellite. The spectra, obtained from 600 km, near local noon, are dominated by spectral lines of singly ionized atomic oxygen. Most prominent features in this passband are O II 538-to-539, 617-, and O II 834-Å emission lines, all of which have intensities exceeding 100 R. Several weak O II and N II features are present in the spectrum with intensities ranging from 10 to 60 R. The brightest spectral feature is O II 834 Å, which was recorded with an intensity exceeding 1 kR.

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