Physics
Scientific paper
Jan 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989georl..16...37h&link_type=abstract
Geophysical Research Letters (ISSN 0094-8276), vol. 16, Jan. 1989, p. 37-40. Research sponsored by DOE.
Physics
53
Auroras, Geomagnetism, Interplanetary Magnetic Fields, Satellite Observation, Antarctic Regions, Dynamics Explorer 1 Satellite, Noaa 7 Satellite, Statistical Analysis
Scientific paper
The frequent appearance of the 'horse-collar aurora' pattern in quiet-time DE 1 images is reported, presenting a two-hour image sequence that displays the basic features and shows that it sometimes evolves toward the theta configuration. There is some evidence for interplanetary magnetic field B(y) influence on the temporal development of the pattern. A preliminary statistical analysis finds the pattern appearing in one-third or more of the image sequences recorded during quiet times.
Craven John D.
Evans Silvan D.
Frank Louis A.
Hones Edward W. Jr.
Newell Patrick T.
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