Figure 4.5 shows the mass-to-flux ratio
normalized with the critical value
is the critical mass-to-flux ratio which is
obtained numerically from equation (4.31).
represents a supercritical cloud while
represents a subcritical cloud.
Mass-to-flux ratio is plotted against the column density.
Dots are obtained from Zeeman splitting and stars are
Figure 4.5 indicates
cloud cores are more or less found near the critical mass-to-flux ratio.
They are not distributed either
in the regions