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Heating Events Observed in the Quiet Corona
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Arnold Benz Submitted: 1999-11-04 13:01
The emission measure of the quiet corona, defined by the plasma hotter than one
million degrees, has been observed by EIT on SoHO to fluctuate in a alrge
majority of the 1900km x 1900km pixels during the observing time of 42 minutes.
In the average, the larger the emission measure in a pixel, the more it
fluctuates. Increases in emission measure constitute a major energy input into
the corona, suggesting that the lower corona is not just heated, but continuous-
continuously replenished by chromospheric material heated to coronal temperatur-
temperatures. We test the hypothesis that the coronal heat input may be largely
by chromospheric evaporation.
ESA Special Publication, in press
Authors: Arnold O. Benz and Sam Krucker
Projects: Soho-EIT
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Publication Status: To appear in: Magnetic Fields and Solar Processes}, 9th European Meeting on Solar Physics, Florence, Italy, 12 - 18 September 19
Last Modified: 2005-11-17 01:40
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