Image Details
Caption: Figure 4.
Nonlinear force-free magnetic field extrapolation. Panels (a)–(f) show the magnetic field line highlighting coronal funnels FL1 and FL2 at different viewing angles. The left column uses height as a color bar to show the magnetic field lines, whereas the right column uses field strength to label color. The FOV of the magnetogram is about 340″ × 200″.
© 2021. The American Astronomical Society. All rights reserved.