Relationship Between Alfvenic Fluctuations and Heavy Ion Heating in the Cusp at 1 Re.

Author:: Chandler, Michael
Published:: May 27, 2008.
Physical Description:: 1 electronic document
Additional Creators:: Coffey, Victoria and Singh, Nagendra

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Summary:

We look at the effect of heavy ion heating from their coupling with observed broadband (BB-ELF) emissions. These wave fluctuations are common to many regions of the ionosphere and magnetosphere and have been described as spatial turbulence of dispersive Alfven waves (DAW) with short perpendicular wavelengths. With Polar passing through the cusp at 1 Re in the Spring of 1996, we show the correlation of their wave power with mass-resolved O+ derived heating rates. This relationship lead to the study of the coupling of the thermal O+ ions and these bursty electric fields. We demonstrate the role of these measurements in the suggestion of DAW and stochastic ion heating and the observed density cavity characteristics.

Other Subject(s):

Plasma Physics

Collection:

NASA Technical Reports Server (NTRS) Collection.

Note:

Document ID: 20080037552.
2008 American Geophysical Union Joint Assembly; 27-30 May 2008; Fort Lauderdale, Fl; United States.

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