NED object is NGC 4826; Reference is 1987A&AS...70..517H

   Figure 1. - Contour maps of nuclei that show a more complex structure of
 their radio continuum emission. The parameters relevant to these maps are
 given in table II. The optical positions are indicated by a cross. NGC 4826
 Contours plotted (mJy per beam) -0.3, 0.3, ..., 2.1 steps of 0.3 HPBW (arcsec)
 1.2x1.1 (2*) r.m.s. noise (mJy per beam) 0.16.