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Explanations of the 2004 July 16 event
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The flare location: S10, E39
Associated with prominence eruption
Impulsive phase: 02:02 - 02:07 UT

timeprof0716.eps: 
  The microwave time profile at 9.4 (blue), 17 (black), 35 (green), and 80 GHz (red).
  The spectrum is flat between 10 and 80 GHz.

16July2004_020300_020320.ps:
   The HXR spectrum is fitted by one power-law above 25 keV.
      Power law index = 4.3

microsource3-2.eps:
  The time development of 17 and 34 GHz sources are shown at typical times 
      of 02:02:31 (precursor), 02:03:01 (impulsive peak), 02:04:16 (impulsive 
      decay time), and 02:20:01 UT (gradual thermal phase).
   Microwave sources are stationally located at the almost same location. 
   In the gradual thermal phase, a large arcade structure develops and 
      slightly bright sources at 17 and 34 GHz can be seen at the same 
      location as ones in the impulsive phase which corresponds to the 
      footpoints of the large arcade structure.
   The background image is SOHO/MDI image.

microsource.eps: 
   17 GHz images are synthesized by Fujiki program (better spatial resolution). 
   The 17 GHz sources in the impulsive phase are located along the magnetic 
   neutral line while the 34 GHz sources are smaller and located slightly on 
   the west side of the corresponding 17 GHz source.

overlay_m-x5.eps:
   Overlay of 17 GHz and HXR sources.
   17 GHz source: 02:03:00 UT
   HXR source: 02:03 -0204 UT ( around the impulsive peak)
   Contour level: 0.1, 0.25, 0.5, 0.75 of each peak brightness.
   50 % level of the HXR source shows good agreement with that of the 
   17 GHz source, being located along the magnetic neutral line. 
   Probably the HXR source seems to be located slightly above the 17 GHz source.