Modeling the coronal magnetic field in a polar hole

Details Modeling the coronal magnetic field in a polar hole Modeling the coronal magnetic field in a polar hole

Oct 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994ssrv...70..369z&link_type=abstract

Space Science Reviews, Volume 70, Issue 1-2, pp. 369-372

Physics

4

Sun, Corona, Coronal Holes, Magnetic Field Structure

Scientific paper

The coronal magnetic field in the northern polar coronal hole in 1986 is predicted on the basis of the photospheric magnetic field observations and the horizontal current-current sheet coronal model (Zhao and Hoeksema, 1993). The predicted magnetic field intensity is stronger near the center of the hole than near the edge. The calculated expansion factor for the entire hole does not match the expansion factor of any flux tube in the hole, suggesting that it would not be appropriate to use the expansion factor for entire hole to represent the divergence of the flux tube in analyzing the acceleration and heating of the plasma in coronal holes.

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