Astronomy and Astrophysics – Astronomy
Scientific paper
May 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aas...210.2518s&link_type=abstract
American Astronomical Society Meeting 210, #25.18; Bulletin of the American Astronomical Society, Vol. 39, p.134
Astronomy and Astrophysics
Astronomy
Scientific paper
It is widely believed that magnetic reconnection is a key mechanism in coronal activity and flare energy release. Due to the spatial and temporal scales involved with observing structures in this extremely faint and dynamic regime, determining the physical characteristics of reconnection using appropriate observable signatures has proven to be challenging. Supra-arcade downflows (SADs), first detected during the Yohkoh mission, are just such an example of an observable consequence of magnetic flux tube reconnection. These sunward-traveling voids above post-eruption coronal arcades are consistent with outflows predicted by 3D reconnection models of solar flares. We have developed semi-automated software to detect downflows and analyze their trajectories, speeds, sizes, and magnetic flux in order to constrain parameters for flare modeling. We will present these measurements as observed primarily by SXT and TRACE and discuss their implications.
McKenzie David E.
McLaughlin L.
Savage Sabrina
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