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Giant Arcade and Jet of 911112

Image name: giant_arcade_12_nov_91.png (click image to enlarge)
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Date submitted: 15-Mar-1994

12 November 1991

This is an X-ray image of the sun taken at 07:33 UT on 12 November 1991
and is described in the article "The Yohkoh Mission for High- Energy
Solar Physics", by L. Acton, et. al., Science vol. 258 , 23 Oct. 1992
pp. 618-625. Three separate exposures of 9.5, 78, and 2668 milliseconds
were combined in this image. Picture brightness scales as the logarithm
of intensity. A thin aluminum filter restricted the instrument
bandpass to the 3 to 40 Angstrom wavelength interval. The hot ionized
gases in the solar atmosphere which emit in this interval trace the
solar magnetic fields extending up into the corona. Variation in
brightness reflect variations in plasma temperature and density.

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