Orientations for well resolved sources
At the other extreme, we can assume that the RM screen is resolved.
This is incorrect for some sources, as the polarization can fall no
faster than 1/^2 giving
DP>0.09 whereas several sources in the GCL sample are more
depolarized than this. The dispersion ratio is
D = [((1-DP_+^2)/(1-DP_-^2)][[DP_-^2-(_1/_2)^4])
/ ([DP_+^2-(_1/_2)^4])]. (17)
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___________________________________
Peter Tribble, peter.tribble@gmail.com