Click image for movie. Also available on YouTube
XRT/Be_Thin + AIA/304 AR Tracking
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Today's movie shows NOAA Active Region 11374 as it develops over about a day and a half from Dec 11-13. In the left panel we have images taken through XRT's thin beryllium filter, which is sensitive to coronal material with temperature in the neighborhood of 8 million Kelvin. The 304-Angstrom passband of AIA, sensitive to chromospheric material at around 50 thousand Kelvin, is shown in the right panel. (For reference, the surface of the Sun, or photosphere, is at a temperature of around 5800 K.) Because temperature increases with distance above the photosphere, here were are afforded a nearly simultaneous view of two different layers in the solar atmosphere, with the XRT images sampling material that sits around 10,000 km above the material shown by the AIA/304 channel. Keywords: AR Tracking, Temperature Structure, AIA Filters: Be_thin, AIA/304 |
(Prepared by Patrick McCauley)
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