Hard X-rays in Descent

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Nugget
Number: 200
1st Author: Aidan O'Flannagain
2nd Author: John Brown and Peter Gallagher
Published: May 6, 2013
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Electron Beams in the Chromosphere

Figure 1: An illustration of thick target model-based HXR emission in a semicircular flare loop. From top to bottom, the injected spectral index drops from 5 to 4, which results in a descent of peak emission.

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Figure 2: Top: Lightcurve of soft (3-6 keV, red) and hard (12-25 keV, blue) X-rays. Also shown is the spectral index of the injected electron distribution (dashed line). Bottom: RHESSI images of 3-6 keV emission, taken at the time indicated by vertical bars in the lightcurve.

Detection of Hard X-rays

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Figure 3: Three phase loop lifetime shown by plots of plasma temperature, X-ray emission, loop width/corpulence and thermal pressure for each flare (left:23-Aug-2005, middle:14/15-Apr-2002 and right:21-May-2004). The pattern repeats for the 14/15-Apr-2002 flare due to the multiple X-ray peaks. The shaded orange bars denote each phase.

Explanation

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Closer to an Answer

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References and links in the article

[1] [http Title]

Acknowledgement.