Propagation of Jovian electron jets in heliospheric flux tube structures

Details Propagation of Jovian electron jets in heliospheric flux tube structures Propagation of Jovian electron jets in heliospheric flux tube structures

Oct 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010jgra..11510106d&link_type=abstract

Journal of Geophysical Research, Volume 115, Issue A10, CiteID A10106

Physics

Plasma Physics

2

Space Plasma Physics: Charged Particle Motion And Acceleration, Space Plasma Physics: Transport Processes, Solar Physics, Astrophysics, And Astronomy: Magnetic Fields, Solar Physics, Astrophysics, And Astronomy: Energetic Particles (2114), Planetary Sciences: Solar System Objects: Jupiter

Scientific paper

We discuss the propagation of magnetic flux tubes of solar origin through the heliosphere up to the orbit of Jupiter and the possibility that Jovian electron jets result from the interaction of these flux tubes with the magnetosphere of Jupiter. In order to do so, we analyze Ulysses observations in the interplanetary medium along the spacecraft's highly inclined orbit between the orbits of Earth and Jupiter. We apply a method originally developed for the analysis of ACE measurements at 1 AU, in which it was shown that the distribution of the relative change in plasma quantities can actually be attributed to plasma turbulence on the one hand and the existence of individual flux tubes in the solar wind on the other hand. The application to Ulysses data shows that this typical behavior can be observed even up to the orbit of Jupiter. In a first step, we discuss possible consequences of the existence of these flux tubes at such large distances for the transport of charged particles through the inner heliosphere. In a second step, we analyze observations of so-called Jovian electron jets with Ulysses and Pioneer 10 data with regard to changes in the magnetic field and interpret these as the result of the magnetic interaction of flux tubes with the Jovian magnetosphere.

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