The Anatomy of Two Nightside Magnetodisk Crossings near Titan

Details The Anatomy of Two Nightside Magnetodisk Crossings near Titan The Anatomy of Two Nightside Magnetodisk Crossings near Titan

Dec 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010agufmsm11c1759n&link_type=abstract

American Geophysical Union, Fall Meeting 2010, abstract #SM11C-1759

Physics

[2756] Magnetospheric Physics / Planetary Magnetospheres, [2764] Magnetospheric Physics / Plasma Sheet, [6281] Planetary Sciences: Solar System Objects / Titan

Scientific paper

It is known that Saturn possesses a rotating magnetodisk, highly stretched tailward, and more bumpy on the dayside. The stretched magnetic field configuration confines a plasma population making up the magnetodisk. Recently a quantitative characterization was introduced how to identify the magnetosheet and the lobe regions using the magnetic field data; this is used in our study. At the central part of the sheet the radial component of the magnetic field in the KRTP system changes sign; in this paper the set of points where BR=0 is called the magnetodisk proper (MD). The MD is embedded into a thicker plasma layer. The objective of this study is to analyze the properties of the plasma near the MD, in the magnetosheet and in the lobe near Titan, along two orbits before the T18 (2006-266) and T20 (2006-298) flybys. In both cases the observations started in the Northern lobes, after the craft spent longer time in the magnetically perturbed sheet. These magnetically perturbed regions contain a denser plasma layer around the MD; we are to reveal these plasma structures using magnetometer, ion and electron data. In the case of ions we use the density, temperature and velocity moments as derived at LANL.

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