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The auroral kilometric radiation: DE 1 direction finding studies
Author(s) -
Mellott M. M.,
Huff R. L.,
Gurnett D. A.
Publication year - 1985
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/gl012i008p00479
Subject(s) - plasmasphere , physics , radiation , plasma , reflection (computer programming) , geophysics , cyclotron , component (thermodynamics) , electron , magnetosphere , computational physics , optics , quantum mechanics , computer science , thermodynamics , programming language
We have determined the directions of arrival of auroral kilometric radiation during three separate intervals using data from the DE 1 plasma wave instrument. In the case of the dominant extraordinary mode component, these directions were consistent with generation at the local electron cyclotron frequency on nightside auroral field lines. The ordinary mode component appeared to have a similar source in one case, but in other cases came from different directions. These other cases were consistent with reflection at the plasmapause and the wall of the auroral plasma cavity.