Fig. 4.
NGC 4013 Chandra image with combined (C- and D-configuration) VLA C-band contours (same data as Fig. 1) at 3- and 30-σ-levels overlaid. The false-color represents the Chandra color from 0.3 to 7 keV. Gray cycles denote Chandra point-like sources. The image is off-centered to show the location of the two point-like sources in the northern halo of NGC 4013.
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