NASA/IPAC EXTRAGALACTIC DATABASE
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NED object is 3C 020; Reference is 1981MNRAS.195..261L
Figs 41 - 58 show maps in which the lengths of the vectors are proportional
to percentage polarization at the frequency of observation and their
directions are those of the apparent magnetic field (corrected to infinite
frequency using the rotation measure given in Table 10). The vectors are
superimposed on contours of total intensity, I. The maps should give a good im
pression of the direction and degree of ordering of the magnetic field.
Vectors are only plotted where the total intensity exceeds some limiting
value, so that their magnitudes and directions are reliably determined. Figs
41 - 58 will be referred to as 'magnetic-field maps'.
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