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| Paper: |
Spatial and Thermal Study of an Isolated Loop with XRT and EIS |
| Volume: |
454, The 3rd Hinode Science Meeting |
| Page: |
241 |
| Authors: |
Saar, S. H.; Schmelz, J. T.; Kashyap, V. L. |
| Abstract: |
We use multi-filter contemporaneous XRT and EIS observations of a small
active region to study the spatial and thermal properties of an isolated
quiescent loop. We study the loop as a whole, in segments, in transverse
cuts, and point-by-point, always with some form of “background” subtraction.
We find the loop DEM is not-isothermal, but is also not extremely broad,
with ≈96% of the EM between 6.2 ≤ log T ≤ 6.7, and an
EM-weighted average temperature of 〈log T〉 = 6.48 ± 0.16.
There is some evidence for a gradual change in temperature along the
loop, with 〈log T〉 increasing by ≈0.1 from the
foot points to the peak. Including EIS data helps better constrain the
EM at low T. Future work includes combining the analysis with
contemporaneous RHESSI data and to explore XRT-EIS-RHESSI cross-calibration
at AR temperatures. |
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