NED object is NGC 4041; Reference is 1985A&AS...60..293H Fig. 1f. NGC4041 Contours plotted (mJy per beam) -0.5, 0.5, 1, 2, 4, 8, 10, 15, 20 -- HPBW (arcsec) 13 -- r.m.s. noise (mJy per beam) 0.21 -- kpc per arcmin 5.3.