File:Supra-Arcade Downflows After Long Duration B-Flare -Hinode XRT-.webm

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Supra-Arcade_Downflows_After_Long_Duration_B-Flare_-Hinode_XRT-.webm(WebM audio/video file, VP8/Vorbis, length 16 s, 360 × 360 pixels, 485 kbps overall)

Summary[edit]

Description

The animation above shows a long duration B-class flare that occurred on 2012/03/30 from NOAA active region 11450. At the time, the Hinode team was actually more interested in the adjacent region, AR 11451, which had produced some of the largest events of the current solar cycle during its previous appearance on the earthward face of the Sun. AR 11450 had only just begun to emerge one day prior to these observations, suggesting flux emergence from the solar interior as a possible trigger for this event. The resultant loop brightenings have the appearance of an unfurling flag, after which a series of supra-arcade downflows are visible in the upper-middle of the frame. These can also be seen, albeit very faintly, in the 131 Å channel of AIA. This event is of particular interest because downflows have not typically been observed in such low-energy events. For additional XRT observations of supra-arcade downflows, have a look at this previous XPOW (see original post, link below).

Visit us at http://xrt.cfa.harvard.edu/ and view the original post at http://xrt.cfa.harvard.edu/xpow/20120418.html

Questions and comments welcome at xrtpow "at" gmail "dot" com

Hinode is a Japanese mission developed and launched by ISAS/JAXA, with NAOJ as domestic partner and NASA and STFC (UK) as international partners. It is operated by these agencies in co-operation with ESA and the NSC (Norway).

Date
Source http://www.youtube.com/watch?v=-hO191FFaC0
Author https://www.youtube.com/user/xrtpow

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This file, which was originally posted to http://www.youtube.com/watch?v=-hO191FFaC0, was reviewed on by the administrator or reviewer McZusatz, who confirmed that it was available there under the stated license on that date.

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Date/TimeThumbnailDimensionsUserComment
current14:17, 23 June 201316 s, 360 × 360 (962 KB)YtUPt (talk | contribs)Imported from http://www.youtube.com/watch?v=-hO191FFaC0
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