Reconnection Outflows and Current Sheet Observed with Hinode/XRT in the April 9 2008 "Cartwheel CME" Flare

Details Reconnection Outflows and Current Sheet Observed with Hinode/XRT in the April 9 2008 "Cartwheel CME" Flare Reconnection Outflows and Current Sheet Observed with Hinode/XRT in the April 9 2008 "Cartwheel CME" Flare

May 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21640423s&link_type=abstract

American Astronomical Society, AAS Meeting #216, #404.23; Bulletin of the American Astronomical Society, Vol. 41, p.903

Astronomy and Astrophysics

Astronomy

Scientific paper

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 then 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) following a CME on April 9, 2008 with XRT and show that their speeds and decelerations are consistent with those determined for SADs. We will also present evidence for a possible current sheet observed during this flare that extends between the CME and the flare arcade. Additionally, we will show a correlation between reconnection outflows observed with XRT and outgoing flows observed with LASCO.

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