Anomalous UV auroral spectra during a large magnetic disturbance

Details Anomalous UV auroral spectra during a large magnetic disturbance Anomalous UV auroral spectra during a large magnetic disturbance

Jun 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989jgr....94.6955i&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 94, June 1, 1989, p. 6955-6960.

Physics

9

Auroral Spectroscopy, Geomagnetism, Magnetic Disturbances, Satellite Observation, Ultraviolet Spectra, Diffuse Radiation, Ebert Spectrometers, Electron Precipitation, Explorer 12 Satellite, Polar Orbits, Spectral Bands, Spectrum Analysis

Scientific paper

Ultraviolet and far-UV spectra were obtained during a very disturbed period on June 2, 1978 by the S3-4 polar-orbiting satellite over the nightside winter southern hemisphere polar region. Striking differences found in the spectra from the auroral precipitation and those of the poleward section of the diffuse auroral region on the same orbit suggest that the spectra may originate from two different altitude regimes. The low-latitude anomalous UV spectral features noted may be due to the previously observed keV ion-atom oxygen precipitation.

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