Observations of Reconnecting Flare Loops with the Atmospheric Imaging Assembly (AIA)

Details Observations of Reconnecting Flare Loops with the Atmospheric Imaging Assembly (AIA) Observations of Reconnecting Flare Loops with the Atmospheric Imaging Assembly (AIA)

2011-09-12

arxiv.org/abs/1109.2474v1

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

Movies are available http://tcrb.nrl.navy.mil/~hwarren/temp/papers/inflows/ in QuickTime format

Scientific paper

Perhaps the most compelling evidence for the role of magnetic reconnection in solar flares comes from the supra-arcade downflows that have been observed above many post-flare loop arcades. These downflows are thought to be related to highly non-potential field lines that have reconnected and are propagating away from the current sheet. We present new observations of supra-arcade downflows taken with the Atmospheric Imagining Assembly (AIA) on the \textit{Solar Dynamics Observatory} (\textit{SDO}). The morphology and dynamics of the downflows observed with AIA provide new evidence for the role of magnetic reconnection in solar flares. With these new observations we are able to measure downflows originating at much larger heights than in previous studies. We find, however, that the initial velocities measured here ($\sim$144\,km s$^{-1}$) are well below the Alfv{\'e}n speed expected in the lower corona, and consistent with previous results. We also find no evidence that the downflows brighten with time, as would be expected from chromospheric evaporation. These observations suggest that simple two-dimensional models cannot explain the detailed observations of solar flares.

Affiliated with

Also associated with

No associations

Rating

Observations of Reconnecting Flare Loops with the Atmospheric Imaging Assembly (AIA) does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Observations of Reconnecting Flare Loops with the Atmospheric Imaging Assembly (AIA), we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Observations of Reconnecting Flare Loops with the Atmospheric Imaging Assembly (AIA) will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-60142