The occurence rate, polarization character and intensity of broadband Jovian kilometric radiation

Details The occurence rate, polarization character and intensity of broadband Jovian kilometric radiation The occurence rate, polarization character and intensity of broadband Jovian kilometric radiation

Jan 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980stin...8017002d&link_type=abstract

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Astronomy and Astrophysics

Astronomy

Broadband, Jupiter (Planet), Planetary Radiation, Polarization Characteristics, Radio Emission, Voyager Project, Flux Density, Radio Astronomy, Radio Bursts, Spectrum Analysis, Voyager 1 Spacecraft, Voyager 2 Spacecraft

Scientific paper

The major observational features of one new component of Jupiter's radio emission spectrum, the broadband kilometer-wavelenth radiation or bKOM are described. The Voyager planetary radio astronomy experiments reveal that the overall occurrence morphology, total power, and polarization character of bKOM are strong functions of the latitude and/or local time geometry of the observations. The post-encounter data show a decline in the mean occurrence rates and power level of bKOM and, in particular, a depletion in the occurrence rate at those same longitudes where the detection rate is a maximum before encounter. Additionally, the polarization sense undergoes a permanent reversal in sign after encounter, whereas the time-averaged wave axial ratio and degrees of polarization remain relatively unchanged. No evidence of any control by Io is found. The strong dependence of the morphology on local time suggests a source whose beam is nearly fixed relative to the Jupiter-sun line.

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