A Multi-Wavelength Statistical Study of Supra-Arcade Downflows

Details A Multi-Wavelength Statistical Study of Supra-Arcade Downflows A Multi-Wavelength Statistical Study of Supra-Arcade Downflows

2012-01-25

arxiv.org/abs/1201.5246v1

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

8 pages, 5 figures, 2010 4th Hinode Science Meeting: Unsolved Problems and Recent Insights; 2012 Astronomical Society of the P

Scientific paper

Sunward-flowing voids above post-coronal mass ejection flare arcades, also known as supra-arcade downflows (SADs), have characteristics consistent with post-reconnection magnetic flux tube cross-sections. Applying semi-automatic detection and analysis software to a large sample of flares using several instruments (e.g., Hinode/XRT, Yohkoh/SXT, TRACE, and SOHO/LASCO), we have estimated parameters such as speeds, sizes, heights, magnetic flux, and relaxation energy associated with SADs, which we interpret as reconnection outflows. We also present speed and height measurements of shrinking loops in comparison to the SAD observations. We briefly discuss these measurements and what impact they have on reconnection models.

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