The polarization of auroral radio emissions

Details The polarization of auroral radio emissions The polarization of auroral radio emissions

Dec 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997georl..24.3161s&link_type=abstract

Geophysical Research Letters, Volume 24, Issue 24, p. 3161-3164

Other

23

Ionosphere: Auroral Ionosphere, Ionosphere: Plasma Waves And Instabilities, Radio Science: Radio Wave Propagation, Radio Science: Waves In Plasma

Scientific paper

Ground level observations using two vertical loop antennas oriented at 90° to each other reveal the sense of polarization of several types of auroral radio emissions in the frequency range 30-5000 kHz. Auroral hiss is observed to be right elliptically polarized (RP) with respect to the local magnetic field, consistent with theoretical expectation for the whistler mode and with earlier measurements. Two less well-understood auroral emissions, are found to be left elliptically polarized (LP). This polarization is inconsistent with their generation in the X-mode as suggested by some theories.

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