Total intensity contours for the rob 0 weighting images over spectral index image with color scale shown at right. The beam of the spectral index image is shown in the lower left corner, and the NED center of the galaxy is marked with a plus sign. Top: NGC 4438. Contours are at 400 (10σI), 1000, 3000, 8000, and 25,000 μJy beam−1. Middle: NGC 3628. Contours are at 232 (10σI), 500, 1500, 5000, 30,000, and 75,000 μJy beam−1. Bottom: NGC 5297. Contours are at 40.8 (3σI), 65, and 100 μJy beam−1.