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| Paper: |
Shrinking Loops Observations for the 2008 April 9 Flare |
| Volume: |
454, The 3rd Hinode Science Meeting |
| Page: |
295 |
| Authors: |
Savage, S. L.; McKenzie, D. E.; Reeves, K. K.; Forbes, T. G. |
| Abstract: |
Supra-arcade downflows (SADs) have been observed with Yohkoh/SXT (soft X-rays (SXR)), TRACE (extreme ultra-violet (EUV)),
SoHO/LASCO (white light),
SoHO/SUMER (EUV spectra), and Hinode/XRT (SXR). Characteristics such as low emissivity and trajectories which slow as they reach the top of the arcade are consistent with post-reconnection magnetic flux tubes. The magnetic flux within the tubes provides pressure against filling with plasma. As with the standard model of reconnection, the tubes retract from a reconnection site high in the corona until they reach a more potential magnetic configuration. Viewed from a perpendicular angle, SADs should appear as shrinking loops rather than downflowing voids. We will present observations of supra-arcade downflowing loops (SADLs) and show that their speeds and decelerations are consistent with those determined for SADs. |
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