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| Paper: |
Non-Thermal Line Width Enhancements between Loops: Investigating Off-Limb Effects |
| Volume: |
454, The 3rd Hinode Science Meeting |
| Page: |
237 |
| Authors: |
Williams, D. R.; Brooks, D. H. |
| Abstract: |
Non-thermal line widths have been observed to be apparently larger between ∼1.6 MK active region loops than within them. This rather interesting result, if taken at face value would have most interesting consequences for our understanding of the mechanism for dumping kinetic energy into the corona. In this work, we attempt to discern whether this phenomenon is, in fact, a result of emission below or above active region loop structures. We trace a handful of loop structures which cross the limb (as observed by Hinode) in data from the EIS experiment and plot the progression of excess (non-thermal) width as a function of distance along these structures. The results are inconclusive: despite the strong signal-to-noise of the measurements, our initial study of a small sample of regions shows evidence that background emission dominates in some structures but not others.” |
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