Image Details
Caption: Figure 4.
Comparison of magnetic energy between GC-UNO and NLFFF in AR 11158. The time range spans from 2011 February 13 12:00:00 UT to 2011 February 15 12:00:00 UT. The top panel shows the total magnetic energy, the middle panel displays the free magnetic energy, and the bottom panel presents the energy ratio between GC-UNO and NLFFF. Three flare events are marked by gray-shaded bars.
© 2026. The Author(s). Published by the American Astronomical Society.