Figure 18: Color contours of the ratio of azimuthally averaged magnetic to gas pressure, .
The scale is logarithmic and is the same for all panels; the color maps saturate in the axial funnel. The
body of the accretion disk is identified with overlaid density contours at , , ,
and of . The individual plots are labeled by model. In all cases, the magnetic
pressure is low ( ) in the disk, comparable to gas pressure ( ) in the
corona above and below the disk, and high ( ) in the funnel region. Image reproduced
by permission from [72], copyright by AAS.
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