File:Supra-Arcade Downflows After Long Duration B-Flare -Hinode XRT-.webm
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).
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).
|This file is licensed under the Creative Commons Attribution 3.0 Unported license.|
|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.|
Click on a date/time to view the file as it appeared at that time.
|current||14:17, 23 June 2013||16 s, 360 × 360 (962 KB)||YtUPt||Imported from http://www.youtube.com/watch?v=-hO191FFaC0|
- You cannot overwrite this file.
File usage on Commons
Transcode statusUpdate transcode status
|Status||Transcode derivative description||Download derivative|
|Completed transcode 21:24, 21 February 2014||Low bandwidth Ogg video (160P)|
|Completed transcode 21:12, 21 February 2014||Web streamable Ogg video (360P)|
|Completed transcode 14:18, 23 June 2013||Web streamable WebM (360P)|
|Completed transcode 14:18, 23 June 2013||Web streamable Ogg video (480P)|