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The minimum bandwidths of auroral kilometric radiation
Author(s) -
Baumback M. M.,
Calvert W.
Publication year - 1987
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/gl014i002p00119
Subject(s) - physics , radiation , wavelength , cyclotron , computational physics , geophysics , optics , astrophysics , plasma , quantum mechanics
The bandwidths of the discrete spectral components of the auroral kilometric radiation can sometimes be as narrow as 5 Hz. Since this would imply an apparent source thickness of substantially less than the wavelength, it is inconsistent with the previous explanation for such discrete components based simply upon vertical localization of a cyclotron source. Instead, such narrow bandwidths can only be explained by radio lasing.