Physics
Scientific paper
Mar 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005eostr..86..110b&link_type=abstract
EOS Transactions, AGU, Volume 86, Issue 11, p. 110-110
Physics
1
Atmospheric Composition And Structure: Airglow And Aurora, Magnetospheric Physics: Auroral Phenomena (2407), Ionosphere: Particle Precipitation
Scientific paper
In a recent Forum article-``What is the Aurora?'' (Eos Trans. AGU, 85(52), 567, 28 December 2004)-John Clarke has raised an important issue: how we define the aurora. I, too, was confronted by the same question when I was writing a review entitled ``Auroral emissions of the giant planets'' with Randy Gladstone [Bhardwaj and Gladstone, 2000]. I widely searched the literature then, to find how the aurora should be defined. Finally, we defined the aurora as ``electromagnetic radiation emanating from the high latitudes of a planet (also called auroral or polar latitudes).'' We also defined auroras as ``(generally) high-latitude atmospheric emissions that result from the precipitation of energetic charged particles from a planet's magnetosphere.''
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