HR: 1130h
AN: SH22B-05    [Abstracts]
TI: On the puzzle of heavy ion properties near the Sun
AU: * Zurbuchen, T H
EM: thomasz@umich.edu
AF: University of Michigan, Department of AOSS 2455 Hayward St, Ann Arbor, MI 48109-2143, United States
AB: Heavy ions can be considered as passive tracers of the solar wind which probe the solar wind heating and acceleration processes in the low corona and throughout the heliosphere. The dynamic properties and ionic charge state distributions of heavy ions are therefore a crucial test case for candidate processes related to coronal heating and solar wind acceleration. This paper will discuss recent measurements of the dynamic properties of heavy elements and put them in context with our current understanding of the dynamic state of heavies near the Sun. The results of this analysis are surprising: There is no coronal heating candidate process that successfully combines our knowledge gained from in situ measurements, and the remote sensing data from observations such as UVCS. Similarly, there appear to be disagreements of the ionic charge states between these observations. These puzzles will likely only be resolved by in situ measurements near the Sun.
DE: 2159 Plasma waves and turbulence
DE: 2164 Solar wind plasma
DE: 2169 Solar wind sources
SC: SPA-Solar and Heliospheric Physics [SH]
MN: 2007 Fall Meeting