### Session P1: Posters and Coffee Break

3:30 PM–3:30 PM, Friday, October 6, 2006
UT Arlington, University Center Room: Rio Grande, 3:30pm-5:30pm

Chair: Robert Ramsey, Pete Williams, Marcus Hawkins, Heather Brown, University of Texas at Arlington

Abstract ID: BAPS.2006.TSF.P1.39

### Abstract: P1.00039 : Alfv\'{e}nic Accelerated Electrons and Auroral Kilometric Radiation Observed by the FAST satellite

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#### Authors:

Lun Ma
Yi-jiun Su
Samuel Jones
R.E. Ergun
(University of Texas at Arlington)

Evidence of the coexistence of Alfv\'{e}n waves and Auroral Kilometric Radiation (AKR) will be presented. Previous studies suggested two types of electron maser instabilities to be the generation mechanism of AKR: one is the loss cone maser; the other is the shell'' maser. The ratio of plasma frequency to electron cyclotron frequency should be small in order to trigger the instability predicted by the weakly relativistic electron cyclotron maser theory. One case has been found where narrow band emissions are associated with multiple shell electron distributions in a dynamic Alfv\'{e}nic acceleration region. More observational evidences will be presented.

To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2006.TSF.P1.39