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Magnetic Characteristics of Active Region Heating Observed with TRACE, SOHO/EIT, and Yohkoh/SXTOver the past several years, we have reported results from studies that have compared the magnetic structure and heating of the transition region and corona (both in active regions and in the quiet Sun) by combining X-ray and EUV images from Yohkoh and Solar and Heliospheric Observatory (SOHO) with photospheric magnetograms from ground-based observatories. Our findings have led us to the hypothesis that most heating throughout the corona is driven from near and below the base of the corona by eruptive microflares occurring in compact low-lying "core magnetic fields (i.e., fields rooted along and closely enveloping polarity inversion lines in the photospheric magnetic flux). We now extend these studies, comparing sequences of UV images from Transition Region and Coronal Explorer (TRACE) with longitudinal magnetograms from Kitt Peak and vector magnetograms from MUSIC. These comparisons confirm the previous results regarding the importance of core-field activity to active region heating. Activity in fields associated with satellite polarity inclusions and/or magnetically sheared configurations is especially prominent. This work is funded by NASA's Office of Space Science through the Sun-Earth Connection Guest Investigator Program and the Solar Physics Supporting Research and Technology Program.
Document ID
Acquisition Source
Marshall Space Flight Center
Document Type
Conference Paper
Porter, J. G.
(NASA Marshall Space Flight Center Huntsville, AL United States)
Falconer, D. A.
(NASA Marshall Space Flight Center Huntsville, AL United States)
Moore, R. L.
(NASA Marshall Space Flight Center Huntsville, AL United States)
Rose, M. Franklin
Date Acquired
August 20, 2013
Publication Date
January 1, 2001
Subject Category
Solar Physics
Meeting Information
Meeting: American Astronautical Society/American Geophysical Union Meeting
Location: Boston, MA
Country: United States
Start Date: June 1, 2001
Sponsors: American Geophysical Union, American Astronomical Society
Distribution Limits
Work of the US Gov. Public Use Permitted.

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