Quasi-Periodic Radio Bursts as Observed by Cassini and Galileo

Details Quasi-Periodic Radio Bursts as Observed by Cassini and Galileo Quasi-Periodic Radio Bursts as Observed by Cassini and Galileo

Dec 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001agufmsm12a0833h&link_type=abstract

American Geophysical Union, Fall Meeting 2001, abstract #SM12A-0833

Other

2756 Planetary Magnetospheres (5443, 5737, 6030), 2772 Plasma Waves And Instabilities, 5737 Magnetospheres (2756), 6984 Waves In Plasma

Scientific paper

The Cassini flyby of Jupiter on December 30, 2000, and the extended Galileo orbital mission provided a unique opportunity to obtain simultaneous measurements with two spacecraft of many Jovian plasma wave and radio emissions, including Jovian type III radio emissions, also known as quasi-periodic (QP) emissions. These particular emissions have been detected by Voyager, Ulysses, Galileo, and Cassini, sometimes with periodicities of ~40 minutes. Other quasi-periodic events have been detected in the energetic particle data of Ulysses, Galileo and Cassini, and in the x-ray spectrum obtained by the Chandra spacecraft, also with ~40-minute periodicities. The multiple observations of similar quasi-periodic events suggest that there may be a common source for these phenomena. Many examples of simultaneous detection of the QP radio emissions were obtained by Cassini and Galileo plasma wave and radio instruments. These simultaneous observations by the two spacecraft, often separated by many hours in local time and many degrees of system III longitude, suggest a `strobelight' source for the emission, and not one which rotates with the planet. The implications of these simultaneous observations will be discussed.

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